./Ultimate.py --spec /mnt/goblint-svcomp/goblint-bench/bench/concrat/properties/no-data-race.prp --file /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-3.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data -tc /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-3.i -s /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15911312111f4471ab570eace984d97967575c7162cf44ea89e569566fcde5ef
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-11-03 13:03:00,124 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-11-03 13:03:00,126 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-11-03 13:03:00,148 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-11-03 13:03:00,149 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-11-03 13:03:00,149 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-11-03 13:03:00,150 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-11-03 13:03:00,152 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-11-03 13:03:00,153 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-11-03 13:03:00,153 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-11-03 13:03:00,154 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-11-03 13:03:00,155 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-11-03 13:03:00,155 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-11-03 13:03:00,156 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-11-03 13:03:00,157 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-11-03 13:03:00,158 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-11-03 13:03:00,159 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-11-03 13:03:00,159 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-11-03 13:03:00,161 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-11-03 13:03:00,162 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-11-03 13:03:00,163 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-11-03 13:03:00,164 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-11-03 13:03:00,165 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-11-03 13:03:00,166 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-11-03 13:03:00,168 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-11-03 13:03:00,169 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-11-03 13:03:00,169 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-11-03 13:03:00,169 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-11-03 13:03:00,170 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-11-03 13:03:00,171 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-11-03 13:03:00,171 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-11-03 13:03:00,171 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-11-03 13:03:00,172 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-11-03 13:03:00,172 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-11-03 13:03:00,173 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-11-03 13:03:00,173 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-11-03 13:03:00,174 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-11-03 13:03:00,174 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-11-03 13:03:00,174 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-11-03 13:03:00,175 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-11-03 13:03:00,175 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-11-03 13:03:00,176 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-11-03 13:03:00,192 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-11-03 13:03:00,192 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-03 13:03:00,193 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-03 13:03:00,193 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-03 13:03:00,193 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-03 13:03:00,193 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-03 13:03:00,194 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-03 13:03:00,194 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-03 13:03:00,194 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-11-03 13:03:00,194 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-03 13:03:00,195 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-03 13:03:00,196 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-11-03 13:03:00,196 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-11-03 13:03:00,196 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-03 13:03:00,196 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-11-03 13:03:00,196 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-03 13:03:00,196 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-03 13:03:00,196 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-03 13:03:00,197 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-03 13:03:00,197 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-03 13:03:00,197 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-03 13:03:00,197 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-03 13:03:00,197 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-11-03 13:03:00,197 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-03 13:03:00,197 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-03 13:03:00,198 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-03 13:03:00,198 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-03 13:03:00,198 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-03 13:03:00,198 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-03 13:03:00,198 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-03 13:03:00,198 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15911312111f4471ab570eace984d97967575c7162cf44ea89e569566fcde5ef
[2023-11-03 13:03:00,383 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-03 13:03:00,401 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-03 13:03:00,403 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-03 13:03:00,404 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-11-03 13:03:00,404 INFO  L275        PluginConnector]: CDTParser initialized
[2023-11-03 13:03:00,405 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-3.i
[2023-11-03 13:03:01,471 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-11-03 13:03:01,709 INFO  L351              CDTParser]: Found 1 translation units.
[2023-11-03 13:03:01,709 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-array-const-race-3.i
[2023-11-03 13:03:01,718 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/fda0f65f7/6e1196f18cca468fa3e74fc592cff971/FLAG618147670
[2023-11-03 13:03:01,729 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/fda0f65f7/6e1196f18cca468fa3e74fc592cff971
[2023-11-03 13:03:01,731 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-03 13:03:01,732 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-03 13:03:01,733 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-03 13:03:01,733 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-03 13:03:01,736 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-03 13:03:01,737 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:03:01" (1/1) ...
[2023-11-03 13:03:01,737 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b6d847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:01, skipping insertion in model container
[2023-11-03 13:03:01,738 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:03:01" (1/1) ...
[2023-11-03 13:03:01,743 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-11-03 13:03:01,770 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-11-03 13:03:01,962 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-11-03 13:03:01,972 INFO  L203         MainTranslator]: Completed pre-run
[2023-11-03 13:03:02,003 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-11-03 13:03:02,029 INFO  L208         MainTranslator]: Completed translation
[2023-11-03 13:03:02,029 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02 WrapperNode
[2023-11-03 13:03:02,029 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-03 13:03:02,030 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-03 13:03:02,030 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-03 13:03:02,030 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-03 13:03:02,036 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,052 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,067 INFO  L138                Inliner]: procedures = 157, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59
[2023-11-03 13:03:02,068 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-03 13:03:02,068 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-03 13:03:02,068 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-03 13:03:02,068 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-11-03 13:03:02,075 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,075 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,077 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,077 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,082 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,085 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,086 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,087 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,088 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-03 13:03:02,089 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-03 13:03:02,089 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-11-03 13:03:02,089 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-11-03 13:03:02,090 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (1/1) ...
[2023-11-03 13:03:02,095 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-03 13:03:02,103 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:03:02,115 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-03 13:03:02,118 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-03 13:03:02,144 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-11-03 13:03:02,144 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-11-03 13:03:02,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-11-03 13:03:02,145 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-03 13:03:02,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-03 13:03:02,147 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-11-03 13:03:02,288 INFO  L235             CfgBuilder]: Building ICFG
[2023-11-03 13:03:02,290 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-03 13:03:02,433 INFO  L276             CfgBuilder]: Performing block encoding
[2023-11-03 13:03:02,440 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-03 13:03:02,440 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-03 13:03:02,442 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:03:02 BoogieIcfgContainer
[2023-11-03 13:03:02,442 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-03 13:03:02,444 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-03 13:03:02,444 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-11-03 13:03:02,447 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-11-03 13:03:02,447 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:03:01" (1/3) ...
[2023-11-03 13:03:02,448 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3886c095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:03:02, skipping insertion in model container
[2023-11-03 13:03:02,448 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:03:02" (2/3) ...
[2023-11-03 13:03:02,448 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3886c095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:03:02, skipping insertion in model container
[2023-11-03 13:03:02,448 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:03:02" (3/3) ...
[2023-11-03 13:03:02,450 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-3.i
[2023-11-03 13:03:02,457 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-03 13:03:02,466 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-03 13:03:02,467 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2023-11-03 13:03:02,467 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-03 13:03:02,515 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-03 13:03:02,548 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 95 places, 93 transitions, 202 flow
[2023-11-03 13:03:02,623 INFO  L130       PetriNetUnfolder]: 8/186 cut-off events.
[2023-11-03 13:03:02,624 INFO  L131       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2023-11-03 13:03:02,629 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 200 conditions, 186 events. 8/186 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 510 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. 
[2023-11-03 13:03:02,629 INFO  L82        GeneralOperation]: Start removeDead. Operand has 95 places, 93 transitions, 202 flow
[2023-11-03 13:03:02,633 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 94 places, 92 transitions, 198 flow
[2023-11-03 13:03:02,637 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 13:03:02,647 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 92 transitions, 198 flow
[2023-11-03 13:03:02,650 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 92 transitions, 198 flow
[2023-11-03 13:03:02,651 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 198 flow
[2023-11-03 13:03:02,694 INFO  L130       PetriNetUnfolder]: 8/186 cut-off events.
[2023-11-03 13:03:02,694 INFO  L131       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2023-11-03 13:03:02,695 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 200 conditions, 186 events. 8/186 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 510 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. 
[2023-11-03 13:03:02,697 INFO  L119        LiptonReduction]: Number of co-enabled transitions 2352
[2023-11-03 13:03:04,264 INFO  L134        LiptonReduction]: Checked pairs total: 5656
[2023-11-03 13:03:04,265 INFO  L136        LiptonReduction]: Total number of compositions: 66
[2023-11-03 13:03:04,279 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 13:03:04,284 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@476c16c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 13:03:04,284 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2023-11-03 13:03:04,287 INFO  L130       PetriNetUnfolder]: 0/11 cut-off events.
[2023-11-03 13:03:04,287 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 13:03:04,287 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:04,287 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-03 13:03:04,288 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-03 13:03:04,291 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:04,291 INFO  L85        PathProgramCache]: Analyzing trace with hash 286880126, now seen corresponding path program 1 times
[2023-11-03 13:03:04,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:04,300 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259888698]
[2023-11-03 13:03:04,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:04,300 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:04,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:04,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:04,499 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:04,499 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259888698]
[2023-11-03 13:03:04,500 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259888698] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:04,500 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:04,500 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:04,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104950268]
[2023-11-03 13:03:04,502 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:04,508 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:04,508 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:04,525 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:04,526 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:04,564 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 84 out of 159
[2023-11-03 13:03:04,567 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 74 flow. Second operand  has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:04,568 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:04,568 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 159
[2023-11-03 13:03:04,569 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:04,680 INFO  L130       PetriNetUnfolder]: 282/645 cut-off events.
[2023-11-03 13:03:04,680 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-11-03 13:03:04,682 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 645 events. 282/645 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3312 event pairs, 117 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 1049. Up to 511 conditions per place. 
[2023-11-03 13:03:04,685 INFO  L137   encePairwiseOnDemand]: 155/159 looper letters, 26 selfloop transitions, 2 changer transitions 0/35 dead transitions.
[2023-11-03 13:03:04,686 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 140 flow
[2023-11-03 13:03:04,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:04,689 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:04,696 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions.
[2023-11-03 13:03:04,698 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5911949685534591
[2023-11-03 13:03:04,699 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 282 transitions.
[2023-11-03 13:03:04,699 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions.
[2023-11-03 13:03:04,700 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:04,702 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions.
[2023-11-03 13:03:04,704 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:04,708 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:04,709 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:04,710 INFO  L175             Difference]: Start difference. First operand has 34 places, 30 transitions, 74 flow. Second operand 3 states and 282 transitions.
[2023-11-03 13:03:04,711 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 140 flow
[2023-11-03 13:03:04,714 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:03:04,715 INFO  L231             Difference]: Finished difference. Result has 34 places, 29 transitions, 76 flow
[2023-11-03 13:03:04,717 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=29}
[2023-11-03 13:03:04,720 INFO  L288   CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places.
[2023-11-03 13:03:04,720 INFO  L495      AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 76 flow
[2023-11-03 13:03:04,721 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:04,721 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:04,721 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-03 13:03:04,721 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-03 13:03:04,721 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-03 13:03:04,722 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:04,722 INFO  L85        PathProgramCache]: Analyzing trace with hash 294180119, now seen corresponding path program 1 times
[2023-11-03 13:03:04,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:04,722 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263769511]
[2023-11-03 13:03:04,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:04,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:04,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 13:03:04,742 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 13:03:04,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 13:03:04,766 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 13:03:04,766 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 13:03:04,767 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining)
[2023-11-03 13:03:04,769 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining)
[2023-11-03 13:03:04,769 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining)
[2023-11-03 13:03:04,769 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining)
[2023-11-03 13:03:04,770 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining)
[2023-11-03 13:03:04,770 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining)
[2023-11-03 13:03:04,770 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining)
[2023-11-03 13:03:04,770 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-03 13:03:04,770 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-03 13:03:04,772 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 13:03:04,772 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-03 13:03:04,794 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-03 13:03:04,797 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 129 places, 125 transitions, 286 flow
[2023-11-03 13:03:04,822 INFO  L130       PetriNetUnfolder]: 18/333 cut-off events.
[2023-11-03 13:03:04,822 INFO  L131       PetriNetUnfolder]: For 14/14 co-relation queries the response was YES.
[2023-11-03 13:03:04,824 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 363 conditions, 333 events. 18/333 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1157 event pairs, 1 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 358. Up to 16 conditions per place. 
[2023-11-03 13:03:04,824 INFO  L82        GeneralOperation]: Start removeDead. Operand has 129 places, 125 transitions, 286 flow
[2023-11-03 13:03:04,825 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 111 places, 108 transitions, 240 flow
[2023-11-03 13:03:04,825 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 13:03:04,825 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 108 transitions, 240 flow
[2023-11-03 13:03:04,826 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 108 transitions, 240 flow
[2023-11-03 13:03:04,826 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 111 places, 108 transitions, 240 flow
[2023-11-03 13:03:04,847 INFO  L130       PetriNetUnfolder]: 18/333 cut-off events.
[2023-11-03 13:03:04,847 INFO  L131       PetriNetUnfolder]: For 14/14 co-relation queries the response was YES.
[2023-11-03 13:03:04,848 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 362 conditions, 333 events. 18/333 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1158 event pairs, 1 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 195. Up to 16 conditions per place. 
[2023-11-03 13:03:04,853 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4452
[2023-11-03 13:03:06,344 INFO  L134        LiptonReduction]: Checked pairs total: 9797
[2023-11-03 13:03:06,344 INFO  L136        LiptonReduction]: Total number of compositions: 74
[2023-11-03 13:03:06,348 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 13:03:06,349 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@476c16c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 13:03:06,349 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2023-11-03 13:03:06,351 INFO  L130       PetriNetUnfolder]: 0/11 cut-off events.
[2023-11-03 13:03:06,351 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 13:03:06,351 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:06,351 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-03 13:03:06,351 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] ===
[2023-11-03 13:03:06,351 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:06,351 INFO  L85        PathProgramCache]: Analyzing trace with hash 492968682, now seen corresponding path program 1 times
[2023-11-03 13:03:06,351 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:06,352 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077741920]
[2023-11-03 13:03:06,352 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:06,352 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:06,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:06,398 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:06,399 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:06,399 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077741920]
[2023-11-03 13:03:06,399 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077741920] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:06,400 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:06,400 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:06,400 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220844148]
[2023-11-03 13:03:06,400 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:06,400 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:06,401 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:06,401 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:06,401 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:06,420 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 112 out of 199
[2023-11-03 13:03:06,421 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 102 flow. Second operand  has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:06,421 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:06,421 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 199
[2023-11-03 13:03:06,421 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:06,866 INFO  L130       PetriNetUnfolder]: 3806/6422 cut-off events.
[2023-11-03 13:03:06,867 INFO  L131       PetriNetUnfolder]: For 267/267 co-relation queries the response was YES.
[2023-11-03 13:03:06,873 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 12417 conditions, 6422 events. 3806/6422 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 39302 event pairs, 2367 based on Foata normal form. 0/5856 useless extension candidates. Maximal degree in co-relation 2430. Up to 5720 conditions per place. 
[2023-11-03 13:03:06,899 INFO  L137   encePairwiseOnDemand]: 195/199 looper letters, 35 selfloop transitions, 2 changer transitions 0/45 dead transitions.
[2023-11-03 13:03:06,899 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 188 flow
[2023-11-03 13:03:06,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:06,900 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:06,902 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions.
[2023-11-03 13:03:06,902 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.628140703517588
[2023-11-03 13:03:06,903 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 375 transitions.
[2023-11-03 13:03:06,903 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions.
[2023-11-03 13:03:06,903 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:06,903 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions.
[2023-11-03 13:03:06,905 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:06,906 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:06,907 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:06,907 INFO  L175             Difference]: Start difference. First operand has 44 places, 39 transitions, 102 flow. Second operand 3 states and 375 transitions.
[2023-11-03 13:03:06,907 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 188 flow
[2023-11-03 13:03:06,910 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:03:06,911 INFO  L231             Difference]: Finished difference. Result has 44 places, 39 transitions, 108 flow
[2023-11-03 13:03:06,911 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=44, PETRI_TRANSITIONS=39}
[2023-11-03 13:03:06,912 INFO  L288   CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places.
[2023-11-03 13:03:06,912 INFO  L495      AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 108 flow
[2023-11-03 13:03:06,912 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:06,913 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:06,913 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:06,913 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-03 13:03:06,913 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] ===
[2023-11-03 13:03:06,913 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:06,913 INFO  L85        PathProgramCache]: Analyzing trace with hash 1412476630, now seen corresponding path program 1 times
[2023-11-03 13:03:06,913 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:06,914 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732240959]
[2023-11-03 13:03:06,914 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:06,914 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:06,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:06,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:06,945 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:06,945 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732240959]
[2023-11-03 13:03:06,945 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732240959] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:06,945 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:06,945 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:06,945 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870151631]
[2023-11-03 13:03:06,946 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:06,946 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:06,946 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:06,946 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:06,946 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:06,968 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 106 out of 199
[2023-11-03 13:03:06,968 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 108 flow. Second operand  has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:06,968 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:06,968 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 199
[2023-11-03 13:03:06,969 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:07,484 INFO  L130       PetriNetUnfolder]: 5318/8649 cut-off events.
[2023-11-03 13:03:07,484 INFO  L131       PetriNetUnfolder]: For 369/369 co-relation queries the response was YES.
[2023-11-03 13:03:07,492 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 16900 conditions, 8649 events. 5318/8649 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 54589 event pairs, 3594 based on Foata normal form. 0/7741 useless extension candidates. Maximal degree in co-relation 16850. Up to 6156 conditions per place. 
[2023-11-03 13:03:07,523 INFO  L137   encePairwiseOnDemand]: 192/199 looper letters, 51 selfloop transitions, 6 changer transitions 0/64 dead transitions.
[2023-11-03 13:03:07,524 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 289 flow
[2023-11-03 13:03:07,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:07,524 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:07,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions.
[2023-11-03 13:03:07,526 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.626465661641541
[2023-11-03 13:03:07,526 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 374 transitions.
[2023-11-03 13:03:07,526 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions.
[2023-11-03 13:03:07,526 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:07,526 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions.
[2023-11-03 13:03:07,528 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:07,529 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:07,530 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:07,530 INFO  L175             Difference]: Start difference. First operand has 44 places, 39 transitions, 108 flow. Second operand 3 states and 374 transitions.
[2023-11-03 13:03:07,530 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 289 flow
[2023-11-03 13:03:07,531 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 64 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 13:03:07,532 INFO  L231             Difference]: Finished difference. Result has 47 places, 44 transitions, 152 flow
[2023-11-03 13:03:07,532 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=47, PETRI_TRANSITIONS=44}
[2023-11-03 13:03:07,533 INFO  L288   CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places.
[2023-11-03 13:03:07,533 INFO  L495      AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 152 flow
[2023-11-03 13:03:07,533 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:07,533 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:07,533 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:07,534 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-03 13:03:07,534 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] ===
[2023-11-03 13:03:07,534 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:07,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -334774117, now seen corresponding path program 1 times
[2023-11-03 13:03:07,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:07,534 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502035208]
[2023-11-03 13:03:07,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:07,535 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:07,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:07,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:03:07,588 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:07,588 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502035208]
[2023-11-03 13:03:07,588 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502035208] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:07,589 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:07,589 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 13:03:07,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584603781]
[2023-11-03 13:03:07,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:07,589 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-03 13:03:07,589 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:07,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-03 13:03:07,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-03 13:03:07,620 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 110 out of 199
[2023-11-03 13:03:07,621 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 152 flow. Second operand  has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:07,621 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:07,621 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 199
[2023-11-03 13:03:07,621 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:08,019 INFO  L130       PetriNetUnfolder]: 3577/6082 cut-off events.
[2023-11-03 13:03:08,020 INFO  L131       PetriNetUnfolder]: For 2918/3056 co-relation queries the response was YES.
[2023-11-03 13:03:08,025 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 14330 conditions, 6082 events. 3577/6082 cut-off events. For 2918/3056 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 36980 event pairs, 1503 based on Foata normal form. 337/6246 useless extension candidates. Maximal degree in co-relation 5292. Up to 2973 conditions per place. 
[2023-11-03 13:03:08,043 INFO  L137   encePairwiseOnDemand]: 195/199 looper letters, 57 selfloop transitions, 3 changer transitions 0/68 dead transitions.
[2023-11-03 13:03:08,043 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 68 transitions, 355 flow
[2023-11-03 13:03:08,044 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-03 13:03:08,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-03 13:03:08,045 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 491 transitions.
[2023-11-03 13:03:08,046 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6168341708542714
[2023-11-03 13:03:08,046 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 491 transitions.
[2023-11-03 13:03:08,046 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 491 transitions.
[2023-11-03 13:03:08,046 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:08,046 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 491 transitions.
[2023-11-03 13:03:08,047 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:08,049 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:08,050 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:08,050 INFO  L175             Difference]: Start difference. First operand has 47 places, 44 transitions, 152 flow. Second operand 4 states and 491 transitions.
[2023-11-03 13:03:08,050 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 68 transitions, 355 flow
[2023-11-03 13:03:08,056 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 68 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:03:08,057 INFO  L231             Difference]: Finished difference. Result has 49 places, 45 transitions, 156 flow
[2023-11-03 13:03:08,058 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=49, PETRI_TRANSITIONS=45}
[2023-11-03 13:03:08,058 INFO  L288   CegarLoopForPetriNet]: 44 programPoint places, 5 predicate places.
[2023-11-03 13:03:08,058 INFO  L495      AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 156 flow
[2023-11-03 13:03:08,059 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:08,059 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:08,059 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-11-03 13:03:08,059 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-03 13:03:08,059 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] ===
[2023-11-03 13:03:08,059 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:08,059 INFO  L85        PathProgramCache]: Analyzing trace with hash -1675528288, now seen corresponding path program 1 times
[2023-11-03 13:03:08,059 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:08,060 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752318021]
[2023-11-03 13:03:08,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:08,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:08,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 13:03:08,075 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 13:03:08,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 13:03:08,085 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 13:03:08,085 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 13:03:08,085 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining)
[2023-11-03 13:03:08,086 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining)
[2023-11-03 13:03:08,086 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining)
[2023-11-03 13:03:08,086 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining)
[2023-11-03 13:03:08,086 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining)
[2023-11-03 13:03:08,086 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining)
[2023-11-03 13:03:08,086 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining)
[2023-11-03 13:03:08,087 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining)
[2023-11-03 13:03:08,087 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining)
[2023-11-03 13:03:08,087 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-03 13:03:08,087 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-11-03 13:03:08,088 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 13:03:08,088 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-11-03 13:03:08,122 INFO  L144    ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions.
[2023-11-03 13:03:08,125 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 163 places, 157 transitions, 374 flow
[2023-11-03 13:03:08,158 INFO  L130       PetriNetUnfolder]: 40/584 cut-off events.
[2023-11-03 13:03:08,158 INFO  L131       PetriNetUnfolder]: For 39/39 co-relation queries the response was YES.
[2023-11-03 13:03:08,160 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 643 conditions, 584 events. 40/584 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2535 event pairs, 6 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 636. Up to 32 conditions per place. 
[2023-11-03 13:03:08,160 INFO  L82        GeneralOperation]: Start removeDead. Operand has 163 places, 157 transitions, 374 flow
[2023-11-03 13:03:08,161 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 128 places, 124 transitions, 284 flow
[2023-11-03 13:03:08,162 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 13:03:08,162 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 124 transitions, 284 flow
[2023-11-03 13:03:08,162 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 124 transitions, 284 flow
[2023-11-03 13:03:08,162 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 284 flow
[2023-11-03 13:03:08,194 INFO  L130       PetriNetUnfolder]: 40/584 cut-off events.
[2023-11-03 13:03:08,195 INFO  L131       PetriNetUnfolder]: For 39/39 co-relation queries the response was YES.
[2023-11-03 13:03:08,196 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 641 conditions, 584 events. 40/584 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2535 event pairs, 6 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 355. Up to 32 conditions per place. 
[2023-11-03 13:03:08,205 INFO  L119        LiptonReduction]: Number of co-enabled transitions 7028
[2023-11-03 13:03:09,965 INFO  L134        LiptonReduction]: Checked pairs total: 17746
[2023-11-03 13:03:09,966 INFO  L136        LiptonReduction]: Total number of compositions: 82
[2023-11-03 13:03:09,969 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 13:03:09,971 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@476c16c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 13:03:09,971 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2023-11-03 13:03:09,974 INFO  L130       PetriNetUnfolder]: 0/11 cut-off events.
[2023-11-03 13:03:09,974 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 13:03:09,974 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:09,974 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-03 13:03:09,975 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:09,975 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:09,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 737288928, now seen corresponding path program 1 times
[2023-11-03 13:03:09,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:09,976 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118468580]
[2023-11-03 13:03:09,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:09,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:09,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:10,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:10,002 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:10,002 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118468580]
[2023-11-03 13:03:10,002 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118468580] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:10,003 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:10,003 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:10,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281556508]
[2023-11-03 13:03:10,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:10,003 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:10,003 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:10,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:10,004 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:10,026 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 138 out of 239
[2023-11-03 13:03:10,027 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 130 flow. Second operand  has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:10,027 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:10,027 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 239
[2023-11-03 13:03:10,027 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:12,205 INFO  L130       PetriNetUnfolder]: 26260/40190 cut-off events.
[2023-11-03 13:03:12,205 INFO  L131       PetriNetUnfolder]: For 2250/2250 co-relation queries the response was YES.
[2023-11-03 13:03:12,256 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 78148 conditions, 40190 events. 26260/40190 cut-off events. For 2250/2250 co-relation queries the response was YES. Maximal size of possible extension queue 1149. Compared 284188 event pairs, 18714 based on Foata normal form. 0/37039 useless extension candidates. Maximal degree in co-relation 10697. Up to 36173 conditions per place. 
[2023-11-03 13:03:12,401 INFO  L137   encePairwiseOnDemand]: 235/239 looper letters, 40 selfloop transitions, 2 changer transitions 0/53 dead transitions.
[2023-11-03 13:03:12,401 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 226 flow
[2023-11-03 13:03:12,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:12,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:12,403 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions.
[2023-11-03 13:03:12,404 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6387726638772664
[2023-11-03 13:03:12,404 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 458 transitions.
[2023-11-03 13:03:12,404 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions.
[2023-11-03 13:03:12,404 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:12,404 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions.
[2023-11-03 13:03:12,405 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:12,407 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:12,407 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:12,407 INFO  L175             Difference]: Start difference. First operand has 53 places, 47 transitions, 130 flow. Second operand 3 states and 458 transitions.
[2023-11-03 13:03:12,464 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 226 flow
[2023-11-03 13:03:12,470 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:03:12,471 INFO  L231             Difference]: Finished difference. Result has 53 places, 47 transitions, 136 flow
[2023-11-03 13:03:12,471 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=53, PETRI_TRANSITIONS=47}
[2023-11-03 13:03:12,472 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places.
[2023-11-03 13:03:12,472 INFO  L495      AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 136 flow
[2023-11-03 13:03:12,473 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:12,473 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:12,473 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:12,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-03 13:03:12,473 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:12,474 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:12,474 INFO  L85        PathProgramCache]: Analyzing trace with hash -46964134, now seen corresponding path program 1 times
[2023-11-03 13:03:12,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:12,474 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853340477]
[2023-11-03 13:03:12,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:12,501 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:12,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:12,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:12,535 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:12,535 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853340477]
[2023-11-03 13:03:12,536 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853340477] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:12,536 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:12,536 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:12,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709041967]
[2023-11-03 13:03:12,536 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:12,536 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:12,536 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:12,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:12,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:12,562 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 132 out of 239
[2023-11-03 13:03:12,563 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 136 flow. Second operand  has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:12,563 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:12,563 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 239
[2023-11-03 13:03:12,563 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:15,705 INFO  L130       PetriNetUnfolder]: 39784/59149 cut-off events.
[2023-11-03 13:03:15,706 INFO  L131       PetriNetUnfolder]: For 2997/2997 co-relation queries the response was YES.
[2023-11-03 13:03:15,833 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 115679 conditions, 59149 events. 39784/59149 cut-off events. For 2997/2997 co-relation queries the response was YES. Maximal size of possible extension queue 1595. Compared 417493 event pairs, 32701 based on Foata normal form. 0/53652 useless extension candidates. Maximal degree in co-relation 115628. Up to 48818 conditions per place. 
[2023-11-03 13:03:16,016 INFO  L137   encePairwiseOnDemand]: 232/239 looper letters, 62 selfloop transitions, 6 changer transitions 0/77 dead transitions.
[2023-11-03 13:03:16,016 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 77 transitions, 359 flow
[2023-11-03 13:03:16,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:16,017 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:16,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions.
[2023-11-03 13:03:16,018 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6457461645746164
[2023-11-03 13:03:16,018 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 463 transitions.
[2023-11-03 13:03:16,018 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions.
[2023-11-03 13:03:16,019 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:16,019 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions.
[2023-11-03 13:03:16,020 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:16,021 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:16,021 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:16,021 INFO  L175             Difference]: Start difference. First operand has 53 places, 47 transitions, 136 flow. Second operand 3 states and 463 transitions.
[2023-11-03 13:03:16,021 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 77 transitions, 359 flow
[2023-11-03 13:03:16,026 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 77 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 13:03:16,027 INFO  L231             Difference]: Finished difference. Result has 55 places, 52 transitions, 174 flow
[2023-11-03 13:03:16,027 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=55, PETRI_TRANSITIONS=52}
[2023-11-03 13:03:16,028 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places.
[2023-11-03 13:03:16,028 INFO  L495      AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 174 flow
[2023-11-03 13:03:16,028 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:16,028 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:16,028 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:16,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-03 13:03:16,029 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:16,029 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:16,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 1501193596, now seen corresponding path program 1 times
[2023-11-03 13:03:16,029 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:16,029 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123389571]
[2023-11-03 13:03:16,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:16,029 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:16,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:16,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:03:16,069 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:16,069 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123389571]
[2023-11-03 13:03:16,069 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123389571] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:16,069 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:16,069 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 13:03:16,069 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674583482]
[2023-11-03 13:03:16,069 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:16,070 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-03 13:03:16,070 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:16,070 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-03 13:03:16,070 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-03 13:03:16,100 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 138 out of 239
[2023-11-03 13:03:16,101 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 174 flow. Second operand  has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:16,101 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:16,101 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 239
[2023-11-03 13:03:16,101 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:18,757 INFO  L130       PetriNetUnfolder]: 29386/45356 cut-off events.
[2023-11-03 13:03:18,757 INFO  L131       PetriNetUnfolder]: For 13695/14996 co-relation queries the response was YES.
[2023-11-03 13:03:18,824 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 100116 conditions, 45356 events. 29386/45356 cut-off events. For 13695/14996 co-relation queries the response was YES. Maximal size of possible extension queue 1196. Compared 329710 event pairs, 15373 based on Foata normal form. 1826/45161 useless extension candidates. Maximal degree in co-relation 31396. Up to 24158 conditions per place. 
[2023-11-03 13:03:18,959 INFO  L137   encePairwiseOnDemand]: 235/239 looper letters, 64 selfloop transitions, 3 changer transitions 0/79 dead transitions.
[2023-11-03 13:03:18,959 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 79 transitions, 390 flow
[2023-11-03 13:03:18,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-03 13:03:18,960 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-03 13:03:18,961 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 612 transitions.
[2023-11-03 13:03:18,961 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6401673640167364
[2023-11-03 13:03:18,962 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 612 transitions.
[2023-11-03 13:03:18,962 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 612 transitions.
[2023-11-03 13:03:18,962 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:18,962 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 612 transitions.
[2023-11-03 13:03:18,963 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:18,965 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:18,965 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:18,965 INFO  L175             Difference]: Start difference. First operand has 55 places, 52 transitions, 174 flow. Second operand 4 states and 612 transitions.
[2023-11-03 13:03:18,965 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 79 transitions, 390 flow
[2023-11-03 13:03:18,972 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 79 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 13:03:18,973 INFO  L231             Difference]: Finished difference. Result has 58 places, 53 transitions, 184 flow
[2023-11-03 13:03:18,974 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=58, PETRI_TRANSITIONS=53}
[2023-11-03 13:03:18,974 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places.
[2023-11-03 13:03:18,974 INFO  L495      AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 184 flow
[2023-11-03 13:03:18,975 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:18,975 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:18,975 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:18,975 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-03 13:03:18,975 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:18,975 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:18,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -618388217, now seen corresponding path program 1 times
[2023-11-03 13:03:18,976 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:18,976 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745761951]
[2023-11-03 13:03:18,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:18,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:18,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:18,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-03 13:03:18,995 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:18,996 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745761951]
[2023-11-03 13:03:18,996 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745761951] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:18,996 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:18,996 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:18,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882850832]
[2023-11-03 13:03:18,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:18,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:18,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:18,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:18,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:19,028 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 132 out of 239
[2023-11-03 13:03:19,028 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 184 flow. Second operand  has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:19,028 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:19,028 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 239
[2023-11-03 13:03:19,029 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:22,348 INFO  L130       PetriNetUnfolder]: 37579/57369 cut-off events.
[2023-11-03 13:03:22,348 INFO  L131       PetriNetUnfolder]: For 19884/20895 co-relation queries the response was YES.
[2023-11-03 13:03:22,472 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 131298 conditions, 57369 events. 37579/57369 cut-off events. For 19884/20895 co-relation queries the response was YES. Maximal size of possible extension queue 1386. Compared 416679 event pairs, 29498 based on Foata normal form. 0/53923 useless extension candidates. Maximal degree in co-relation 26067. Up to 47362 conditions per place. 
[2023-11-03 13:03:22,730 INFO  L137   encePairwiseOnDemand]: 232/239 looper letters, 66 selfloop transitions, 7 changer transitions 0/82 dead transitions.
[2023-11-03 13:03:22,730 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 427 flow
[2023-11-03 13:03:22,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:22,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:22,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions.
[2023-11-03 13:03:22,732 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6443514644351465
[2023-11-03 13:03:22,732 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 462 transitions.
[2023-11-03 13:03:22,733 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions.
[2023-11-03 13:03:22,733 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:22,733 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions.
[2023-11-03 13:03:22,734 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:22,735 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:22,735 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:22,735 INFO  L175             Difference]: Start difference. First operand has 58 places, 53 transitions, 184 flow. Second operand 3 states and 462 transitions.
[2023-11-03 13:03:22,735 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 427 flow
[2023-11-03 13:03:22,773 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 82 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:03:22,774 INFO  L231             Difference]: Finished difference. Result has 59 places, 58 transitions, 233 flow
[2023-11-03 13:03:22,774 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=59, PETRI_TRANSITIONS=58}
[2023-11-03 13:03:22,775 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 6 predicate places.
[2023-11-03 13:03:22,775 INFO  L495      AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 233 flow
[2023-11-03 13:03:22,775 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:22,775 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:22,775 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:22,775 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-03 13:03:22,775 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:22,776 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:22,776 INFO  L85        PathProgramCache]: Analyzing trace with hash -707898105, now seen corresponding path program 1 times
[2023-11-03 13:03:22,776 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:22,776 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492637494]
[2023-11-03 13:03:22,776 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:22,776 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:22,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:22,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:03:22,799 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:22,799 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492637494]
[2023-11-03 13:03:22,799 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492637494] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:22,799 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:22,799 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:22,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945230980]
[2023-11-03 13:03:22,800 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:22,800 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:22,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:22,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:22,800 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:22,830 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 132 out of 239
[2023-11-03 13:03:22,831 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 233 flow. Second operand  has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:22,831 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:22,831 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 239
[2023-11-03 13:03:22,831 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:25,996 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([707] L689-6-->L692: Formula: (and (not (< |v_ULTIMATE.start_main_~i~1#1_In_5| |v_ULTIMATE.start_main_~threads_total~0#1_In_11|)) (= |v_#race~data~0_Out_10| 0))  InVars {ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_In_5|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_In_11|}  OutVars{ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_In_5|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_In_11|, #race~data~0=|v_#race~data~0_Out_10|}  AuxVars[]  AssignedVars[#race~data~0][62], [threadThread1of3ForFork1InUse, threadThread2of3ForFork1InUse, threadThread3of3ForFork1InUse, Black: 168#(<= (+ |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~threads_total~0#1|), 187#true, 151#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 125#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 173#(= |#race~data~0| |threadThread1of3ForFork1_#t~nondet2|), 51#L692true, 182#true, 4#L679true, Black: 179#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|)), Black: 184#(= |threadThread2of3ForFork1_#t~nondet2| |#race~data~0|)])
[2023-11-03 13:03:25,996 INFO  L383   tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event
[2023-11-03 13:03:25,996 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is cut-off event
[2023-11-03 13:03:25,996 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is cut-off event
[2023-11-03 13:03:25,996 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is cut-off event
[2023-11-03 13:03:26,090 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([707] L689-6-->L692: Formula: (and (not (< |v_ULTIMATE.start_main_~i~1#1_In_5| |v_ULTIMATE.start_main_~threads_total~0#1_In_11|)) (= |v_#race~data~0_Out_10| 0))  InVars {ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_In_5|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_In_11|}  OutVars{ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_In_5|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_In_11|, #race~data~0=|v_#race~data~0_Out_10|}  AuxVars[]  AssignedVars[#race~data~0][62], [threadThread1of3ForFork1InUse, 42#threadEXITtrue, threadThread2of3ForFork1InUse, threadThread3of3ForFork1InUse, Black: 168#(<= (+ |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~threads_total~0#1|), 187#true, 151#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 125#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 173#(= |#race~data~0| |threadThread1of3ForFork1_#t~nondet2|), 51#L692true, 182#true, Black: 179#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|)), Black: 184#(= |threadThread2of3ForFork1_#t~nondet2| |#race~data~0|)])
[2023-11-03 13:03:26,090 INFO  L383   tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,090 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,091 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,091 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,092 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([707] L689-6-->L692: Formula: (and (not (< |v_ULTIMATE.start_main_~i~1#1_In_5| |v_ULTIMATE.start_main_~threads_total~0#1_In_11|)) (= |v_#race~data~0_Out_10| 0))  InVars {ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_In_5|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_In_11|}  OutVars{ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_In_5|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_In_11|, #race~data~0=|v_#race~data~0_Out_10|}  AuxVars[]  AssignedVars[#race~data~0][62], [threadThread1of3ForFork1InUse, threadThread2of3ForFork1InUse, threadThread3of3ForFork1NotInUse, Black: 168#(<= (+ |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~threads_total~0#1|), 187#true, 151#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 125#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 173#(= |#race~data~0| |threadThread1of3ForFork1_#t~nondet2|), 51#L692true, 182#true, Black: 179#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|)), Black: 184#(= |threadThread2of3ForFork1_#t~nondet2| |#race~data~0|), 93#threadEXITtrue])
[2023-11-03 13:03:26,092 INFO  L383   tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,092 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,092 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,092 INFO  L386   tUnfolder$Statistics]:   existing Event has 39 ancestors and is cut-off event
[2023-11-03 13:03:26,386 INFO  L130       PetriNetUnfolder]: 43028/65505 cut-off events.
[2023-11-03 13:03:26,386 INFO  L131       PetriNetUnfolder]: For 40709/42879 co-relation queries the response was YES.
[2023-11-03 13:03:26,504 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 165073 conditions, 65505 events. 43028/65505 cut-off events. For 40709/42879 co-relation queries the response was YES. Maximal size of possible extension queue 1688. Compared 485413 event pairs, 32159 based on Foata normal form. 6/61325 useless extension candidates. Maximal degree in co-relation 51590. Up to 54919 conditions per place. 
[2023-11-03 13:03:26,741 INFO  L137   encePairwiseOnDemand]: 232/239 looper letters, 65 selfloop transitions, 8 changer transitions 0/82 dead transitions.
[2023-11-03 13:03:26,741 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 82 transitions, 465 flow
[2023-11-03 13:03:26,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:26,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:26,743 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions.
[2023-11-03 13:03:26,743 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6373779637377964
[2023-11-03 13:03:26,743 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 457 transitions.
[2023-11-03 13:03:26,743 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions.
[2023-11-03 13:03:26,744 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:26,744 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions.
[2023-11-03 13:03:26,745 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:26,746 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:26,746 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:26,746 INFO  L175             Difference]: Start difference. First operand has 59 places, 58 transitions, 233 flow. Second operand 3 states and 457 transitions.
[2023-11-03 13:03:26,746 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 82 transitions, 465 flow
[2023-11-03 13:03:27,316 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 82 transitions, 457 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 13:03:27,317 INFO  L231             Difference]: Finished difference. Result has 61 places, 63 transitions, 290 flow
[2023-11-03 13:03:27,317 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=61, PETRI_TRANSITIONS=63}
[2023-11-03 13:03:27,318 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places.
[2023-11-03 13:03:27,318 INFO  L495      AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 290 flow
[2023-11-03 13:03:27,318 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:27,319 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:27,319 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:27,319 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-03 13:03:27,319 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:27,319 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:27,319 INFO  L85        PathProgramCache]: Analyzing trace with hash 2112228569, now seen corresponding path program 1 times
[2023-11-03 13:03:27,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:27,320 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894723814]
[2023-11-03 13:03:27,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:27,320 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:27,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:27,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:03:27,383 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:27,383 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894723814]
[2023-11-03 13:03:27,384 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894723814] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:27,384 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:27,384 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 13:03:27,384 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829823547]
[2023-11-03 13:03:27,384 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:27,385 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:27,385 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:27,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:27,386 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:27,412 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 130 out of 239
[2023-11-03 13:03:27,412 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 290 flow. Second operand  has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:27,412 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:27,412 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 239
[2023-11-03 13:03:27,412 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:28,009 INFO  L130       PetriNetUnfolder]: 2880/6623 cut-off events.
[2023-11-03 13:03:28,009 INFO  L131       PetriNetUnfolder]: For 5851/6027 co-relation queries the response was YES.
[2023-11-03 13:03:28,020 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 17476 conditions, 6623 events. 2880/6623 cut-off events. For 5851/6027 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 54966 event pairs, 523 based on Foata normal form. 2061/8360 useless extension candidates. Maximal degree in co-relation 7167. Up to 4497 conditions per place. 
[2023-11-03 13:03:28,035 INFO  L137   encePairwiseOnDemand]: 231/239 looper letters, 52 selfloop transitions, 8 changer transitions 0/71 dead transitions.
[2023-11-03 13:03:28,035 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 422 flow
[2023-11-03 13:03:28,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:28,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:28,037 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions.
[2023-11-03 13:03:28,037 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6192468619246861
[2023-11-03 13:03:28,037 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 444 transitions.
[2023-11-03 13:03:28,037 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions.
[2023-11-03 13:03:28,038 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:28,038 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions.
[2023-11-03 13:03:28,039 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:28,040 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:28,040 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:28,040 INFO  L175             Difference]: Start difference. First operand has 61 places, 63 transitions, 290 flow. Second operand 3 states and 444 transitions.
[2023-11-03 13:03:28,040 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 422 flow
[2023-11-03 13:03:28,047 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 413 flow, removed 3 selfloop flow, removed 1 redundant places.
[2023-11-03 13:03:28,048 INFO  L231             Difference]: Finished difference. Result has 62 places, 54 transitions, 232 flow
[2023-11-03 13:03:28,048 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=62, PETRI_TRANSITIONS=54}
[2023-11-03 13:03:28,049 INFO  L288   CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places.
[2023-11-03 13:03:28,049 INFO  L495      AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 232 flow
[2023-11-03 13:03:28,049 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:28,049 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:28,049 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-11-03 13:03:28,050 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-03 13:03:28,050 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2023-11-03 13:03:28,050 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:28,050 INFO  L85        PathProgramCache]: Analyzing trace with hash 792906874, now seen corresponding path program 1 times
[2023-11-03 13:03:28,050 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:28,050 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803713371]
[2023-11-03 13:03:28,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:28,051 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:28,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 13:03:28,062 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-03 13:03:28,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-03 13:03:28,072 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-03 13:03:28,072 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-03 13:03:28,072 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining)
[2023-11-03 13:03:28,072 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining)
[2023-11-03 13:03:28,072 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining)
[2023-11-03 13:03:28,072 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining)
[2023-11-03 13:03:28,073 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining)
[2023-11-03 13:03:28,073 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-11-03 13:03:28,073 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:28,074 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-03 13:03:28,074 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-11-03 13:03:28,104 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-11-03 13:03:28,107 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 197 places, 189 transitions, 466 flow
[2023-11-03 13:03:28,202 INFO  L130       PetriNetUnfolder]: 90/1047 cut-off events.
[2023-11-03 13:03:28,203 INFO  L131       PetriNetUnfolder]: For 96/96 co-relation queries the response was YES.
[2023-11-03 13:03:28,206 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 1047 events. 90/1047 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5407 event pairs, 23 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1155. Up to 80 conditions per place. 
[2023-11-03 13:03:28,206 INFO  L82        GeneralOperation]: Start removeDead. Operand has 197 places, 189 transitions, 466 flow
[2023-11-03 13:03:28,208 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 145 places, 140 transitions, 330 flow
[2023-11-03 13:03:28,209 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-03 13:03:28,209 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 140 transitions, 330 flow
[2023-11-03 13:03:28,209 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 140 transitions, 330 flow
[2023-11-03 13:03:28,209 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 145 places, 140 transitions, 330 flow
[2023-11-03 13:03:28,283 INFO  L130       PetriNetUnfolder]: 90/1047 cut-off events.
[2023-11-03 13:03:28,283 INFO  L131       PetriNetUnfolder]: For 96/96 co-relation queries the response was YES.
[2023-11-03 13:03:28,286 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 1047 events. 90/1047 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5406 event pairs, 23 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 632. Up to 80 conditions per place. 
[2023-11-03 13:03:28,305 INFO  L119        LiptonReduction]: Number of co-enabled transitions 10080
[2023-11-03 13:03:30,151 INFO  L134        LiptonReduction]: Checked pairs total: 24069
[2023-11-03 13:03:30,151 INFO  L136        LiptonReduction]: Total number of compositions: 90
[2023-11-03 13:03:30,152 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-03 13:03:30,153 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@476c16c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-03 13:03:30,153 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 13 error locations.
[2023-11-03 13:03:30,154 INFO  L130       PetriNetUnfolder]: 0/11 cut-off events.
[2023-11-03 13:03:30,154 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-11-03 13:03:30,154 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:30,154 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-03 13:03:30,154 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:03:30,154 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:30,154 INFO  L85        PathProgramCache]: Analyzing trace with hash 1019721883, now seen corresponding path program 1 times
[2023-11-03 13:03:30,154 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:30,155 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711423368]
[2023-11-03 13:03:30,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:30,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:30,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:30,173 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:30,174 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:30,174 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711423368]
[2023-11-03 13:03:30,174 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711423368] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:30,174 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:30,174 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:30,174 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105395606]
[2023-11-03 13:03:30,174 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:30,175 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:30,175 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:30,175 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:30,175 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:30,196 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 166 out of 279
[2023-11-03 13:03:30,197 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 160 flow. Second operand  has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:30,197 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:30,197 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 279
[2023-11-03 13:03:30,197 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:03:48,820 INFO  L130       PetriNetUnfolder]: 274063/379367 cut-off events.
[2023-11-03 13:03:48,820 INFO  L131       PetriNetUnfolder]: For 26101/26101 co-relation queries the response was YES.
[2023-11-03 13:03:49,420 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 748536 conditions, 379367 events. 274063/379367 cut-off events. For 26101/26101 co-relation queries the response was YES. Maximal size of possible extension queue 7804. Compared 2816735 event pairs, 213969 based on Foata normal form. 0/357635 useless extension candidates. Maximal degree in co-relation 91133. Up to 353594 conditions per place. 
[2023-11-03 13:03:50,742 INFO  L137   encePairwiseOnDemand]: 275/279 looper letters, 48 selfloop transitions, 2 changer transitions 0/61 dead transitions.
[2023-11-03 13:03:50,743 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 61 transitions, 272 flow
[2023-11-03 13:03:50,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:03:50,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:03:50,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions.
[2023-11-03 13:03:50,745 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6571087216248507
[2023-11-03 13:03:50,745 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 550 transitions.
[2023-11-03 13:03:50,745 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions.
[2023-11-03 13:03:50,746 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:03:50,746 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions.
[2023-11-03 13:03:50,747 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:50,748 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:50,748 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:50,748 INFO  L175             Difference]: Start difference. First operand has 62 places, 55 transitions, 160 flow. Second operand 3 states and 550 transitions.
[2023-11-03 13:03:50,748 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 61 transitions, 272 flow
[2023-11-03 13:03:50,834 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:03:50,835 INFO  L231             Difference]: Finished difference. Result has 62 places, 55 transitions, 166 flow
[2023-11-03 13:03:50,835 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=62, PETRI_TRANSITIONS=55}
[2023-11-03 13:03:50,836 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places.
[2023-11-03 13:03:50,836 INFO  L495      AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 166 flow
[2023-11-03 13:03:50,836 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:50,836 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:03:50,836 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:03:50,836 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-11-03 13:03:50,836 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:03:50,836 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:03:50,837 INFO  L85        PathProgramCache]: Analyzing trace with hash 905065865, now seen corresponding path program 1 times
[2023-11-03 13:03:50,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:03:50,837 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167427675]
[2023-11-03 13:03:50,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:03:50,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:03:50,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:03:50,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:03:50,854 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:03:50,854 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167427675]
[2023-11-03 13:03:50,854 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167427675] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:03:50,855 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:03:50,855 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:03:50,855 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977730401]
[2023-11-03 13:03:50,855 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:03:50,855 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:03:50,855 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:03:50,855 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:03:50,855 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:03:50,898 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2023-11-03 13:03:50,899 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 166 flow. Second operand  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:03:50,899 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:03:50,899 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2023-11-03 13:03:50,899 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:04:23,076 INFO  L130       PetriNetUnfolder]: 463305/624856 cut-off events.
[2023-11-03 13:04:23,076 INFO  L131       PetriNetUnfolder]: For 37890/37890 co-relation queries the response was YES.
[2023-11-03 13:04:24,160 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1240121 conditions, 624856 events. 463305/624856 cut-off events. For 37890/37890 co-relation queries the response was YES. Maximal size of possible extension queue 11872. Compared 4592099 event pairs, 333207 based on Foata normal form. 0/581501 useless extension candidates. Maximal degree in co-relation 1240069. Up to 474679 conditions per place. 
[2023-11-03 13:04:26,485 INFO  L137   encePairwiseOnDemand]: 270/279 looper letters, 77 selfloop transitions, 8 changer transitions 0/94 dead transitions.
[2023-11-03 13:04:26,485 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 94 transitions, 453 flow
[2023-11-03 13:04:26,486 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:04:26,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:04:26,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions.
[2023-11-03 13:04:26,488 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6666666666666666
[2023-11-03 13:04:26,488 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 558 transitions.
[2023-11-03 13:04:26,488 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions.
[2023-11-03 13:04:26,488 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:04:26,488 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions.
[2023-11-03 13:04:26,489 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:26,490 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:26,491 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:26,491 INFO  L175             Difference]: Start difference. First operand has 62 places, 55 transitions, 166 flow. Second operand 3 states and 558 transitions.
[2023-11-03 13:04:26,491 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 94 transitions, 453 flow
[2023-11-03 13:04:26,513 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 94 transitions, 450 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 13:04:26,514 INFO  L231             Difference]: Finished difference. Result has 65 places, 62 transitions, 226 flow
[2023-11-03 13:04:26,515 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=65, PETRI_TRANSITIONS=62}
[2023-11-03 13:04:26,515 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places.
[2023-11-03 13:04:26,515 INFO  L495      AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 226 flow
[2023-11-03 13:04:26,515 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:26,516 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:04:26,516 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:04:26,516 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-11-03 13:04:26,516 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:04:26,516 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:04:26,516 INFO  L85        PathProgramCache]: Analyzing trace with hash -2134994387, now seen corresponding path program 1 times
[2023-11-03 13:04:26,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:04:26,516 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894009223]
[2023-11-03 13:04:26,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:04:26,517 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:04:26,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:04:26,553 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:04:26,553 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:04:26,553 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894009223]
[2023-11-03 13:04:26,554 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894009223] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:04:26,554 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:04:26,554 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 13:04:26,554 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487416657]
[2023-11-03 13:04:26,554 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:04:26,555 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-03 13:04:26,555 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:04:26,555 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-03 13:04:26,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-03 13:04:26,590 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 166 out of 279
[2023-11-03 13:04:26,591 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 226 flow. Second operand  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:26,591 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:04:26,591 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 279
[2023-11-03 13:04:26,591 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:04:55,140 INFO  L130       PetriNetUnfolder]: 362794/504491 cut-off events.
[2023-11-03 13:04:55,140 INFO  L131       PetriNetUnfolder]: For 214401/224973 co-relation queries the response was YES.
[2023-11-03 13:04:56,103 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1168213 conditions, 504491 events. 362794/504491 cut-off events. For 214401/224973 co-relation queries the response was YES. Maximal size of possible extension queue 10098. Compared 3903323 event pairs, 194869 based on Foata normal form. 14177/499913 useless extension candidates. Maximal degree in co-relation 318292. Up to 295473 conditions per place. 
[2023-11-03 13:04:58,073 INFO  L137   encePairwiseOnDemand]: 275/279 looper letters, 83 selfloop transitions, 3 changer transitions 0/98 dead transitions.
[2023-11-03 13:04:58,073 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 517 flow
[2023-11-03 13:04:58,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-03 13:04:58,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-03 13:04:58,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 739 transitions.
[2023-11-03 13:04:58,075 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6621863799283154
[2023-11-03 13:04:58,076 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 739 transitions.
[2023-11-03 13:04:58,076 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 739 transitions.
[2023-11-03 13:04:58,076 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:04:58,076 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 739 transitions.
[2023-11-03 13:04:58,077 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:58,078 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 279.0) internal successors, (1395), 5 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:58,079 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 279.0) internal successors, (1395), 5 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:04:58,079 INFO  L175             Difference]: Start difference. First operand has 65 places, 62 transitions, 226 flow. Second operand 4 states and 739 transitions.
[2023-11-03 13:04:58,079 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 517 flow
[2023-11-03 13:05:18,783 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 98 transitions, 489 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:05:18,785 INFO  L231             Difference]: Finished difference. Result has 67 places, 63 transitions, 226 flow
[2023-11-03 13:05:18,785 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=67, PETRI_TRANSITIONS=63}
[2023-11-03 13:05:18,785 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places.
[2023-11-03 13:05:18,786 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 226 flow
[2023-11-03 13:05:18,786 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:05:18,786 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:05:18,786 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:05:18,786 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-11-03 13:05:18,787 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:05:18,787 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:05:18,787 INFO  L85        PathProgramCache]: Analyzing trace with hash -1554521875, now seen corresponding path program 1 times
[2023-11-03 13:05:18,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:05:18,787 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74070936]
[2023-11-03 13:05:18,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:05:18,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:05:18,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:05:18,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-03 13:05:18,807 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:05:18,807 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74070936]
[2023-11-03 13:05:18,808 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74070936] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:05:18,808 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:05:18,808 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:05:18,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144615421]
[2023-11-03 13:05:18,808 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:05:18,809 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:05:18,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:05:18,809 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:05:18,809 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:05:18,843 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2023-11-03 13:05:18,844 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 226 flow. Second operand  has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:05:18,844 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:05:18,844 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2023-11-03 13:05:18,844 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:05:57,510 INFO  L130       PetriNetUnfolder]: 517312/705855 cut-off events.
[2023-11-03 13:05:57,511 INFO  L131       PetriNetUnfolder]: For 251919/259083 co-relation queries the response was YES.
[2023-11-03 13:05:58,858 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1647877 conditions, 705855 events. 517312/705855 cut-off events. For 251919/259083 co-relation queries the response was YES. Maximal size of possible extension queue 12999. Compared 5375511 event pairs, 338269 based on Foata normal form. 0/675207 useless extension candidates. Maximal degree in co-relation 303257. Up to 538656 conditions per place. 
[2023-11-03 13:06:01,574 INFO  L137   encePairwiseOnDemand]: 270/279 looper letters, 85 selfloop transitions, 13 changer transitions 0/107 dead transitions.
[2023-11-03 13:06:01,574 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 107 transitions, 579 flow
[2023-11-03 13:06:01,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:06:01,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:06:01,576 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions.
[2023-11-03 13:06:01,577 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6654719235364397
[2023-11-03 13:06:01,577 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 557 transitions.
[2023-11-03 13:06:01,577 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 557 transitions.
[2023-11-03 13:06:01,577 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:06:01,577 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 557 transitions.
[2023-11-03 13:06:01,578 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:06:01,579 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:06:01,579 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:06:01,579 INFO  L175             Difference]: Start difference. First operand has 67 places, 63 transitions, 226 flow. Second operand 3 states and 557 transitions.
[2023-11-03 13:06:01,579 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 107 transitions, 579 flow
[2023-11-03 13:06:05,457 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 107 transitions, 573 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:06:05,459 INFO  L231             Difference]: Finished difference. Result has 69 places, 74 transitions, 342 flow
[2023-11-03 13:06:05,459 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=69, PETRI_TRANSITIONS=74}
[2023-11-03 13:06:05,459 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places.
[2023-11-03 13:06:05,459 INFO  L495      AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 342 flow
[2023-11-03 13:06:05,460 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:06:05,460 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:06:05,460 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:06:05,460 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-11-03 13:06:05,460 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:06:05,460 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:06:05,461 INFO  L85        PathProgramCache]: Analyzing trace with hash -1760726886, now seen corresponding path program 1 times
[2023-11-03 13:06:05,461 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:06:05,461 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67758440]
[2023-11-03 13:06:05,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:06:05,461 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:06:05,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:06:05,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:06:05,481 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:06:05,481 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67758440]
[2023-11-03 13:06:05,481 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67758440] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:06:05,481 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:06:05,481 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:06:05,482 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999958488]
[2023-11-03 13:06:05,482 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:06:05,482 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:06:05,482 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:06:05,482 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:06:05,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:06:05,528 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2023-11-03 13:06:05,529 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 342 flow. Second operand  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:06:05,529 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:06:05,529 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2023-11-03 13:06:05,529 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:07:01,406 INFO  L130       PetriNetUnfolder]: 670728/911826 cut-off events.
[2023-11-03 13:07:01,406 INFO  L131       PetriNetUnfolder]: For 744931/765058 co-relation queries the response was YES.
[2023-11-03 13:07:03,375 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2422402 conditions, 911826 events. 670728/911826 cut-off events. For 744931/765058 co-relation queries the response was YES. Maximal size of possible extension queue 17674. Compared 7090987 event pairs, 402097 based on Foata normal form. 0/867874 useless extension candidates. Maximal degree in co-relation 652406. Up to 711532 conditions per place. 
[2023-11-03 13:07:07,246 INFO  L137   encePairwiseOnDemand]: 270/279 looper letters, 90 selfloop transitions, 22 changer transitions 0/121 dead transitions.
[2023-11-03 13:07:07,246 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 121 transitions, 788 flow
[2023-11-03 13:07:07,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:07:07,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:07:07,248 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions.
[2023-11-03 13:07:07,248 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6583034647550776
[2023-11-03 13:07:07,248 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 551 transitions.
[2023-11-03 13:07:07,248 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 551 transitions.
[2023-11-03 13:07:07,249 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:07:07,249 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 551 transitions.
[2023-11-03 13:07:07,250 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:07:07,251 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:07:07,251 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:07:07,251 INFO  L175             Difference]: Start difference. First operand has 69 places, 74 transitions, 342 flow. Second operand 3 states and 551 transitions.
[2023-11-03 13:07:07,251 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 121 transitions, 788 flow
[2023-11-03 13:09:37,059 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 121 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:09:37,061 INFO  L231             Difference]: Finished difference. Result has 71 places, 92 transitions, 550 flow
[2023-11-03 13:09:37,061 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=71, PETRI_TRANSITIONS=92}
[2023-11-03 13:09:37,061 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places.
[2023-11-03 13:09:37,061 INFO  L495      AbstractCegarLoop]: Abstraction has has 71 places, 92 transitions, 550 flow
[2023-11-03 13:09:37,062 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:37,062 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:37,062 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:37,062 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-11-03 13:09:37,062 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:37,062 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:37,062 INFO  L85        PathProgramCache]: Analyzing trace with hash 2057167882, now seen corresponding path program 1 times
[2023-11-03 13:09:37,062 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:37,062 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845287832]
[2023-11-03 13:09:37,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:37,063 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:37,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:37,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:09:37,099 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:37,099 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845287832]
[2023-11-03 13:09:37,099 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845287832] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:09:37,099 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:09:37,099 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-03 13:09:37,099 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730132550]
[2023-11-03 13:09:37,099 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:09:37,100 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:09:37,100 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:37,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:09:37,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:09:37,130 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 154 out of 279
[2023-11-03 13:09:37,130 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 92 transitions, 550 flow. Second operand  has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:37,130 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:37,130 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 279
[2023-11-03 13:09:37,130 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:38,852 INFO  L130       PetriNetUnfolder]: 12189/26058 cut-off events.
[2023-11-03 13:09:38,853 INFO  L131       PetriNetUnfolder]: For 26646/27076 co-relation queries the response was YES.
[2023-11-03 13:09:38,921 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 72113 conditions, 26058 events. 12189/26058 cut-off events. For 26646/27076 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 257030 event pairs, 3112 based on Foata normal form. 11898/36957 useless extension candidates. Maximal degree in co-relation 27534. Up to 18751 conditions per place. 
[2023-11-03 13:09:38,994 INFO  L137   encePairwiseOnDemand]: 269/279 looper letters, 60 selfloop transitions, 13 changer transitions 0/84 dead transitions.
[2023-11-03 13:09:38,994 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 84 transitions, 529 flow
[2023-11-03 13:09:38,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:09:38,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:09:38,995 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions.
[2023-11-03 13:09:38,996 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6296296296296297
[2023-11-03 13:09:38,996 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 527 transitions.
[2023-11-03 13:09:38,996 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions.
[2023-11-03 13:09:38,996 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:38,996 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions.
[2023-11-03 13:09:38,997 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:38,998 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:38,998 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:38,998 INFO  L175             Difference]: Start difference. First operand has 71 places, 92 transitions, 550 flow. Second operand 3 states and 527 transitions.
[2023-11-03 13:09:38,998 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 84 transitions, 529 flow
[2023-11-03 13:09:39,083 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 509 flow, removed 6 selfloop flow, removed 2 redundant places.
[2023-11-03 13:09:39,084 INFO  L231             Difference]: Finished difference. Result has 71 places, 65 transitions, 296 flow
[2023-11-03 13:09:39,084 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=71, PETRI_TRANSITIONS=65}
[2023-11-03 13:09:39,084 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places.
[2023-11-03 13:09:39,084 INFO  L495      AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 296 flow
[2023-11-03 13:09:39,085 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:39,085 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:39,085 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:39,085 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-11-03 13:09:39,085 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:39,085 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:39,085 INFO  L85        PathProgramCache]: Analyzing trace with hash -1460985149, now seen corresponding path program 1 times
[2023-11-03 13:09:39,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:39,086 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558599105]
[2023-11-03 13:09:39,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:39,086 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:39,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:39,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-11-03 13:09:39,104 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:39,104 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558599105]
[2023-11-03 13:09:39,104 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558599105] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:09:39,104 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:09:39,104 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:09:39,104 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153634078]
[2023-11-03 13:09:39,104 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:09:39,105 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:09:39,105 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:39,105 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:09:39,105 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:09:39,146 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2023-11-03 13:09:39,147 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 296 flow. Second operand  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:39,147 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:39,147 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2023-11-03 13:09:39,147 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:41,019 INFO  L130       PetriNetUnfolder]: 12781/28959 cut-off events.
[2023-11-03 13:09:41,019 INFO  L131       PetriNetUnfolder]: For 28794/28989 co-relation queries the response was YES.
[2023-11-03 13:09:41,080 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 80195 conditions, 28959 events. 12781/28959 cut-off events. For 28794/28989 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 294733 event pairs, 10464 based on Foata normal form. 0/27268 useless extension candidates. Maximal degree in co-relation 21331. Up to 22527 conditions per place. 
[2023-11-03 13:09:41,156 INFO  L137   encePairwiseOnDemand]: 274/279 looper letters, 69 selfloop transitions, 4 changer transitions 0/82 dead transitions.
[2023-11-03 13:09:41,157 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 82 transitions, 516 flow
[2023-11-03 13:09:41,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:09:41,158 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:09:41,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions.
[2023-11-03 13:09:41,159 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6403823178016727
[2023-11-03 13:09:41,159 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 536 transitions.
[2023-11-03 13:09:41,159 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions.
[2023-11-03 13:09:41,159 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:41,159 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions.
[2023-11-03 13:09:41,160 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:41,161 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:41,161 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:41,161 INFO  L175             Difference]: Start difference. First operand has 71 places, 65 transitions, 296 flow. Second operand 3 states and 536 transitions.
[2023-11-03 13:09:41,161 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 82 transitions, 516 flow
[2023-11-03 13:09:41,185 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 82 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-03 13:09:41,187 INFO  L231             Difference]: Finished difference. Result has 74 places, 68 transitions, 322 flow
[2023-11-03 13:09:41,187 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=74, PETRI_TRANSITIONS=68}
[2023-11-03 13:09:41,187 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places.
[2023-11-03 13:09:41,187 INFO  L495      AbstractCegarLoop]: Abstraction has has 74 places, 68 transitions, 322 flow
[2023-11-03 13:09:41,188 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:41,188 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:41,188 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:41,188 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-11-03 13:09:41,188 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:41,188 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:41,188 INFO  L85        PathProgramCache]: Analyzing trace with hash 331846098, now seen corresponding path program 1 times
[2023-11-03 13:09:41,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:41,189 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418944669]
[2023-11-03 13:09:41,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:41,189 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:41,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:41,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:09:41,254 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:41,254 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418944669]
[2023-11-03 13:09:41,254 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418944669] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:09:41,254 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:09:41,254 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-03 13:09:41,254 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278054322]
[2023-11-03 13:09:41,254 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:09:41,254 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-03 13:09:41,255 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:41,255 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-03 13:09:41,255 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-11-03 13:09:41,287 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 165 out of 279
[2023-11-03 13:09:41,288 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 68 transitions, 322 flow. Second operand  has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:41,288 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:41,289 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 279
[2023-11-03 13:09:41,289 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:43,154 INFO  L130       PetriNetUnfolder]: 12159/27705 cut-off events.
[2023-11-03 13:09:43,154 INFO  L131       PetriNetUnfolder]: For 31573/32240 co-relation queries the response was YES.
[2023-11-03 13:09:43,219 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 77789 conditions, 27705 events. 12159/27705 cut-off events. For 31573/32240 co-relation queries the response was YES. Maximal size of possible extension queue 901. Compared 280858 event pairs, 7051 based on Foata normal form. 421/26743 useless extension candidates. Maximal degree in co-relation 28826. Up to 22432 conditions per place. 
[2023-11-03 13:09:43,296 INFO  L137   encePairwiseOnDemand]: 275/279 looper letters, 107 selfloop transitions, 8 changer transitions 0/125 dead transitions.
[2023-11-03 13:09:43,297 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 796 flow
[2023-11-03 13:09:43,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-03 13:09:43,297 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-03 13:09:43,299 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1258 transitions.
[2023-11-03 13:09:43,299 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6441372247823861
[2023-11-03 13:09:43,299 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 1258 transitions.
[2023-11-03 13:09:43,299 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 1258 transitions.
[2023-11-03 13:09:43,300 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:43,300 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1258 transitions.
[2023-11-03 13:09:43,302 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 179.71428571428572) internal successors, (1258), 7 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:43,304 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:43,304 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:43,304 INFO  L175             Difference]: Start difference. First operand has 74 places, 68 transitions, 322 flow. Second operand 7 states and 1258 transitions.
[2023-11-03 13:09:43,304 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 796 flow
[2023-11-03 13:09:43,376 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 125 transitions, 770 flow, removed 3 selfloop flow, removed 4 redundant places.
[2023-11-03 13:09:43,378 INFO  L231             Difference]: Finished difference. Result has 76 places, 72 transitions, 338 flow
[2023-11-03 13:09:43,378 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=76, PETRI_TRANSITIONS=72}
[2023-11-03 13:09:43,378 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places.
[2023-11-03 13:09:43,378 INFO  L495      AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 338 flow
[2023-11-03 13:09:43,379 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:43,379 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:43,379 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:43,379 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-11-03 13:09:43,380 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:43,380 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:43,380 INFO  L85        PathProgramCache]: Analyzing trace with hash 677424075, now seen corresponding path program 1 times
[2023-11-03 13:09:43,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:43,380 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418451507]
[2023-11-03 13:09:43,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:43,380 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:43,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:43,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-03 13:09:43,408 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:43,408 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418451507]
[2023-11-03 13:09:43,408 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418451507] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:09:43,408 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:09:43,408 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:09:43,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013903693]
[2023-11-03 13:09:43,408 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:09:43,408 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:09:43,408 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:43,409 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:09:43,409 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:09:43,444 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 160 out of 279
[2023-11-03 13:09:43,444 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 338 flow. Second operand  has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:43,444 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:43,444 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 279
[2023-11-03 13:09:43,444 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:46,055 INFO  L130       PetriNetUnfolder]: 18711/39390 cut-off events.
[2023-11-03 13:09:46,056 INFO  L131       PetriNetUnfolder]: For 39714/39974 co-relation queries the response was YES.
[2023-11-03 13:09:46,132 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 112111 conditions, 39390 events. 18711/39390 cut-off events. For 39714/39974 co-relation queries the response was YES. Maximal size of possible extension queue 1153. Compared 391146 event pairs, 10305 based on Foata normal form. 0/38041 useless extension candidates. Maximal degree in co-relation 27801. Up to 25329 conditions per place. 
[2023-11-03 13:09:46,209 INFO  L137   encePairwiseOnDemand]: 271/279 looper letters, 81 selfloop transitions, 11 changer transitions 0/99 dead transitions.
[2023-11-03 13:09:46,209 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 99 transitions, 634 flow
[2023-11-03 13:09:46,210 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:09:46,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:09:46,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions.
[2023-11-03 13:09:46,211 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6618876941457587
[2023-11-03 13:09:46,211 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 554 transitions.
[2023-11-03 13:09:46,211 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 554 transitions.
[2023-11-03 13:09:46,211 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:46,211 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 554 transitions.
[2023-11-03 13:09:46,212 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:46,213 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:46,214 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:46,214 INFO  L175             Difference]: Start difference. First operand has 76 places, 72 transitions, 338 flow. Second operand 3 states and 554 transitions.
[2023-11-03 13:09:46,214 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 99 transitions, 634 flow
[2023-11-03 13:09:46,227 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 615 flow, removed 7 selfloop flow, removed 3 redundant places.
[2023-11-03 13:09:46,228 INFO  L231             Difference]: Finished difference. Result has 77 places, 78 transitions, 421 flow
[2023-11-03 13:09:46,228 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=421, PETRI_PLACES=77, PETRI_TRANSITIONS=78}
[2023-11-03 13:09:46,228 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places.
[2023-11-03 13:09:46,228 INFO  L495      AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 421 flow
[2023-11-03 13:09:46,229 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:46,229 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:46,229 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:46,229 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-11-03 13:09:46,229 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:46,229 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:46,229 INFO  L85        PathProgramCache]: Analyzing trace with hash 339527889, now seen corresponding path program 1 times
[2023-11-03 13:09:46,229 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:46,229 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501599512]
[2023-11-03 13:09:46,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:46,229 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:46,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:46,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-03 13:09:46,252 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:46,252 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501599512]
[2023-11-03 13:09:46,252 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501599512] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:09:46,253 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:09:46,253 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-03 13:09:46,253 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259759527]
[2023-11-03 13:09:46,253 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:09:46,253 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-03 13:09:46,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:46,253 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-03 13:09:46,253 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-03 13:09:46,290 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2023-11-03 13:09:46,290 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 421 flow. Second operand  has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:46,290 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:46,290 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2023-11-03 13:09:46,290 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:48,674 INFO  L130       PetriNetUnfolder]: 16121/35584 cut-off events.
[2023-11-03 13:09:48,674 INFO  L131       PetriNetUnfolder]: For 64957/65217 co-relation queries the response was YES.
[2023-11-03 13:09:48,763 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 111229 conditions, 35584 events. 16121/35584 cut-off events. For 64957/65217 co-relation queries the response was YES. Maximal size of possible extension queue 1186. Compared 370950 event pairs, 11142 based on Foata normal form. 0/34860 useless extension candidates. Maximal degree in co-relation 49902. Up to 29264 conditions per place. 
[2023-11-03 13:09:48,838 INFO  L137   encePairwiseOnDemand]: 274/279 looper letters, 78 selfloop transitions, 5 changer transitions 1/93 dead transitions.
[2023-11-03 13:09:48,839 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 93 transitions, 656 flow
[2023-11-03 13:09:48,839 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-03 13:09:48,839 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-03 13:09:48,840 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 534 transitions.
[2023-11-03 13:09:48,841 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6379928315412187
[2023-11-03 13:09:48,841 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 534 transitions.
[2023-11-03 13:09:48,841 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 534 transitions.
[2023-11-03 13:09:48,841 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:48,841 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 534 transitions.
[2023-11-03 13:09:48,842 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:48,843 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:48,843 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:48,843 INFO  L175             Difference]: Start difference. First operand has 77 places, 78 transitions, 421 flow. Second operand 3 states and 534 transitions.
[2023-11-03 13:09:48,843 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 93 transitions, 656 flow
[2023-11-03 13:09:49,670 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 93 transitions, 632 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-03 13:09:49,671 INFO  L231             Difference]: Finished difference. Result has 79 places, 81 transitions, 446 flow
[2023-11-03 13:09:49,671 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=446, PETRI_PLACES=79, PETRI_TRANSITIONS=81}
[2023-11-03 13:09:49,672 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places.
[2023-11-03 13:09:49,672 INFO  L495      AbstractCegarLoop]: Abstraction has has 79 places, 81 transitions, 446 flow
[2023-11-03 13:09:49,672 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:49,672 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:49,672 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:49,672 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-11-03 13:09:49,672 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:49,673 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:49,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -328697098, now seen corresponding path program 1 times
[2023-11-03 13:09:49,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:49,673 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460002822]
[2023-11-03 13:09:49,673 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:49,673 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:49,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:49,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:09:49,713 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:49,714 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460002822]
[2023-11-03 13:09:49,714 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460002822] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:09:49,714 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111609720]
[2023-11-03 13:09:49,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:49,714 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:09:49,715 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:09:49,716 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:09:49,719 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-03 13:09:49,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:49,830 INFO  L263         TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-03 13:09:49,831 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:09:49,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:09:49,918 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:09:49,953 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-03 13:09:49,953 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [111609720] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:09:49,954 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:09:49,954 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7
[2023-11-03 13:09:49,954 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704110439]
[2023-11-03 13:09:49,955 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:09:49,955 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-03 13:09:49,955 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:49,955 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-03 13:09:49,956 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56
[2023-11-03 13:09:49,995 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 165 out of 279
[2023-11-03 13:09:49,997 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 446 flow. Second operand  has 8 states, 8 states have (on average 169.25) internal successors, (1354), 8 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:49,997 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:49,997 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 279
[2023-11-03 13:09:49,997 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:52,264 INFO  L130       PetriNetUnfolder]: 14448/32493 cut-off events.
[2023-11-03 13:09:52,264 INFO  L131       PetriNetUnfolder]: For 61358/62203 co-relation queries the response was YES.
[2023-11-03 13:09:52,353 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 102599 conditions, 32493 events. 14448/32493 cut-off events. For 61358/62203 co-relation queries the response was YES. Maximal size of possible extension queue 1220. Compared 337549 event pairs, 7045 based on Foata normal form. 277/31788 useless extension candidates. Maximal degree in co-relation 31781. Up to 27403 conditions per place. 
[2023-11-03 13:09:52,422 INFO  L137   encePairwiseOnDemand]: 276/279 looper letters, 114 selfloop transitions, 5 changer transitions 0/131 dead transitions.
[2023-11-03 13:09:52,423 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 131 transitions, 931 flow
[2023-11-03 13:09:52,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-03 13:09:52,423 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-03 13:09:52,425 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1092 transitions.
[2023-11-03 13:09:52,425 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6523297491039427
[2023-11-03 13:09:52,425 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1092 transitions.
[2023-11-03 13:09:52,425 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1092 transitions.
[2023-11-03 13:09:52,426 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:52,426 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1092 transitions.
[2023-11-03 13:09:52,428 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:52,429 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:52,429 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:52,429 INFO  L175             Difference]: Start difference. First operand has 79 places, 81 transitions, 446 flow. Second operand 6 states and 1092 transitions.
[2023-11-03 13:09:52,430 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 131 transitions, 931 flow
[2023-11-03 13:09:52,517 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 131 transitions, 909 flow, removed 4 selfloop flow, removed 2 redundant places.
[2023-11-03 13:09:52,518 INFO  L231             Difference]: Finished difference. Result has 82 places, 78 transitions, 423 flow
[2023-11-03 13:09:52,518 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=423, PETRI_PLACES=82, PETRI_TRANSITIONS=78}
[2023-11-03 13:09:52,519 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places.
[2023-11-03 13:09:52,519 INFO  L495      AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 423 flow
[2023-11-03 13:09:52,519 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 169.25) internal successors, (1354), 8 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:52,519 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:52,519 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:52,530 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-03 13:09:52,720 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2023-11-03 13:09:52,720 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:52,721 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:52,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -1312013532, now seen corresponding path program 1 times
[2023-11-03 13:09:52,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:52,722 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890272690]
[2023-11-03 13:09:52,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:52,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:52,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:52,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2023-11-03 13:09:52,815 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:52,815 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890272690]
[2023-11-03 13:09:52,815 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890272690] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:09:52,815 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278035528]
[2023-11-03 13:09:52,816 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:52,816 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:09:52,816 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:09:52,817 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:09:52,819 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-03 13:09:52,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:52,931 INFO  L263         TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-03 13:09:52,933 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:09:53,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2023-11-03 13:09:53,026 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:09:53,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2023-11-03 13:09:53,092 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278035528] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:09:53,092 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:09:53,092 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2023-11-03 13:09:53,092 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339423314]
[2023-11-03 13:09:53,092 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:09:53,093 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-11-03 13:09:53,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:53,093 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-11-03 13:09:53,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90
[2023-11-03 13:09:53,208 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 165 out of 279
[2023-11-03 13:09:53,209 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 423 flow. Second operand  has 10 states, 10 states have (on average 169.9) internal successors, (1699), 10 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:53,209 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:53,209 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 279
[2023-11-03 13:09:53,209 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:09:54,699 INFO  L130       PetriNetUnfolder]: 7317/15022 cut-off events.
[2023-11-03 13:09:54,700 INFO  L131       PetriNetUnfolder]: For 36199/36766 co-relation queries the response was YES.
[2023-11-03 13:09:54,744 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 42449 conditions, 15022 events. 7317/15022 cut-off events. For 36199/36766 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 120901 event pairs, 848 based on Foata normal form. 1722/16732 useless extension candidates. Maximal degree in co-relation 15272. Up to 4560 conditions per place. 
[2023-11-03 13:09:54,784 INFO  L137   encePairwiseOnDemand]: 274/279 looper letters, 166 selfloop transitions, 6 changer transitions 12/195 dead transitions.
[2023-11-03 13:09:54,785 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 195 transitions, 1324 flow
[2023-11-03 13:09:54,785 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-03 13:09:54,785 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-03 13:09:54,787 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1319 transitions.
[2023-11-03 13:09:54,787 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6753712237583205
[2023-11-03 13:09:54,787 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 1319 transitions.
[2023-11-03 13:09:54,787 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 1319 transitions.
[2023-11-03 13:09:54,788 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:09:54,788 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1319 transitions.
[2023-11-03 13:09:54,790 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 188.42857142857142) internal successors, (1319), 7 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:54,791 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:54,792 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:54,792 INFO  L175             Difference]: Start difference. First operand has 82 places, 78 transitions, 423 flow. Second operand 7 states and 1319 transitions.
[2023-11-03 13:09:54,792 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 195 transitions, 1324 flow
[2023-11-03 13:09:54,812 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 195 transitions, 1314 flow, removed 0 selfloop flow, removed 5 redundant places.
[2023-11-03 13:09:54,814 INFO  L231             Difference]: Finished difference. Result has 87 places, 69 transitions, 431 flow
[2023-11-03 13:09:54,814 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=431, PETRI_PLACES=87, PETRI_TRANSITIONS=69}
[2023-11-03 13:09:54,814 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 25 predicate places.
[2023-11-03 13:09:54,814 INFO  L495      AbstractCegarLoop]: Abstraction has has 87 places, 69 transitions, 431 flow
[2023-11-03 13:09:54,815 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 169.9) internal successors, (1699), 10 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:54,815 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:09:54,815 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:09:54,824 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-11-03 13:09:55,016 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:09:55,017 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:09:55,017 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:09:55,017 INFO  L85        PathProgramCache]: Analyzing trace with hash -426895512, now seen corresponding path program 1 times
[2023-11-03 13:09:55,018 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:09:55,018 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873324460]
[2023-11-03 13:09:55,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:55,018 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:09:55,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:55,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-03 13:09:55,608 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:09:55,608 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873324460]
[2023-11-03 13:09:55,608 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873324460] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:09:55,608 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037249572]
[2023-11-03 13:09:55,608 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:09:55,608 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:09:55,608 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:09:55,610 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:09:55,612 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-03 13:09:55,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:09:55,730 INFO  L263         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-11-03 13:09:55,734 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:09:55,988 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-03 13:09:56,070 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14
[2023-11-03 13:09:56,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-03 13:09:56,109 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:09:56,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-03 13:09:56,917 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037249572] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:09:56,917 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:09:56,917 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 21
[2023-11-03 13:09:56,917 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44352599]
[2023-11-03 13:09:56,917 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:09:56,917 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2023-11-03 13:09:56,917 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:09:56,918 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2023-11-03 13:09:56,918 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420
[2023-11-03 13:09:57,869 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 156 out of 279
[2023-11-03 13:09:57,872 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 69 transitions, 431 flow. Second operand  has 21 states, 21 states have (on average 160.71428571428572) internal successors, (3375), 21 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:09:57,872 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:09:57,872 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 279
[2023-11-03 13:09:57,872 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:10:08,759 INFO  L130       PetriNetUnfolder]: 8234/15515 cut-off events.
[2023-11-03 13:10:08,759 INFO  L131       PetriNetUnfolder]: For 27942/27979 co-relation queries the response was YES.
[2023-11-03 13:10:08,796 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 50350 conditions, 15515 events. 8234/15515 cut-off events. For 27942/27979 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 113241 event pairs, 250 based on Foata normal form. 168/15683 useless extension candidates. Maximal degree in co-relation 46031. Up to 9342 conditions per place. 
[2023-11-03 13:10:08,842 INFO  L137   encePairwiseOnDemand]: 268/279 looper letters, 228 selfloop transitions, 16 changer transitions 24/277 dead transitions.
[2023-11-03 13:10:08,843 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 277 transitions, 1955 flow
[2023-11-03 13:10:08,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-11-03 13:10:08,844 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2023-11-03 13:10:08,847 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2910 transitions.
[2023-11-03 13:10:08,848 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6135357368753953
[2023-11-03 13:10:08,848 INFO  L72            ComplementDD]: Start complementDD. Operand 17 states and 2910 transitions.
[2023-11-03 13:10:08,848 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 17 states and 2910 transitions.
[2023-11-03 13:10:08,849 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:10:08,849 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2910 transitions.
[2023-11-03 13:10:08,853 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 18 states, 17 states have (on average 171.1764705882353) internal successors, (2910), 17 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:08,856 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:08,857 INFO  L81            ComplementDD]: Finished complementDD. Result  has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:08,857 INFO  L175             Difference]: Start difference. First operand has 87 places, 69 transitions, 431 flow. Second operand 17 states and 2910 transitions.
[2023-11-03 13:10:08,857 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 277 transitions, 1955 flow
[2023-11-03 13:10:09,048 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 277 transitions, 1943 flow, removed 3 selfloop flow, removed 3 redundant places.
[2023-11-03 13:10:09,050 INFO  L231             Difference]: Finished difference. Result has 102 places, 77 transitions, 487 flow
[2023-11-03 13:10:09,050 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=487, PETRI_PLACES=102, PETRI_TRANSITIONS=77}
[2023-11-03 13:10:09,051 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 40 predicate places.
[2023-11-03 13:10:09,051 INFO  L495      AbstractCegarLoop]: Abstraction has has 102 places, 77 transitions, 487 flow
[2023-11-03 13:10:09,051 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 160.71428571428572) internal successors, (3375), 21 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:09,051 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:10:09,052 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:10:09,060 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-03 13:10:09,252 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2023-11-03 13:10:09,252 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:10:09,253 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:10:09,253 INFO  L85        PathProgramCache]: Analyzing trace with hash 2003967368, now seen corresponding path program 2 times
[2023-11-03 13:10:09,253 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:10:09,254 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781150956]
[2023-11-03 13:10:09,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:10:09,254 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:10:09,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:10:09,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-11-03 13:10:09,831 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:10:09,831 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781150956]
[2023-11-03 13:10:09,831 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781150956] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:10:09,831 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643547160]
[2023-11-03 13:10:09,831 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-03 13:10:09,831 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:10:09,831 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:10:09,833 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:10:09,835 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-03 13:10:09,963 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-11-03 13:10:09,964 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-03 13:10:09,966 INFO  L263         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-11-03 13:10:09,970 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:10:10,161 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-03 13:10:10,205 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14
[2023-11-03 13:10:10,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-11-03 13:10:10,231 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:10:10,853 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-11-03 13:10:10,853 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [643547160] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:10:10,853 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:10:10,853 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18
[2023-11-03 13:10:10,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896535098]
[2023-11-03 13:10:10,853 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:10:10,854 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-11-03 13:10:10,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:10:10,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-11-03 13:10:10,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306
[2023-11-03 13:10:11,739 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 158 out of 279
[2023-11-03 13:10:11,741 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 77 transitions, 487 flow. Second operand  has 18 states, 18 states have (on average 163.38888888888889) internal successors, (2941), 18 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:11,741 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:10:11,741 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 279
[2023-11-03 13:10:11,742 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:10:15,796 INFO  L130       PetriNetUnfolder]: 7186/13731 cut-off events.
[2023-11-03 13:10:15,796 INFO  L131       PetriNetUnfolder]: For 26109/26146 co-relation queries the response was YES.
[2023-11-03 13:10:15,831 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 49016 conditions, 13731 events. 7186/13731 cut-off events. For 26109/26146 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 99073 event pairs, 2885 based on Foata normal form. 168/13899 useless extension candidates. Maximal degree in co-relation 44657. Up to 8950 conditions per place. 
[2023-11-03 13:10:15,867 INFO  L137   encePairwiseOnDemand]: 268/279 looper letters, 203 selfloop transitions, 16 changer transitions 24/252 dead transitions.
[2023-11-03 13:10:15,867 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 252 transitions, 1818 flow
[2023-11-03 13:10:15,869 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-11-03 13:10:15,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2023-11-03 13:10:15,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2444 transitions.
[2023-11-03 13:10:15,872 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6257040450588838
[2023-11-03 13:10:15,872 INFO  L72            ComplementDD]: Start complementDD. Operand 14 states and 2444 transitions.
[2023-11-03 13:10:15,872 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 14 states and 2444 transitions.
[2023-11-03 13:10:15,873 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:10:15,873 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2444 transitions.
[2023-11-03 13:10:15,876 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 15 states, 14 states have (on average 174.57142857142858) internal successors, (2444), 14 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:15,880 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:15,880 INFO  L81            ComplementDD]: Finished complementDD. Result  has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:15,880 INFO  L175             Difference]: Start difference. First operand has 102 places, 77 transitions, 487 flow. Second operand 14 states and 2444 transitions.
[2023-11-03 13:10:15,880 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 252 transitions, 1818 flow
[2023-11-03 13:10:16,008 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 252 transitions, 1798 flow, removed 5 selfloop flow, removed 6 redundant places.
[2023-11-03 13:10:16,010 INFO  L231             Difference]: Finished difference. Result has 110 places, 77 transitions, 503 flow
[2023-11-03 13:10:16,010 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=503, PETRI_PLACES=110, PETRI_TRANSITIONS=77}
[2023-11-03 13:10:16,010 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 48 predicate places.
[2023-11-03 13:10:16,010 INFO  L495      AbstractCegarLoop]: Abstraction has has 110 places, 77 transitions, 503 flow
[2023-11-03 13:10:16,011 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 163.38888888888889) internal successors, (2941), 18 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:16,011 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:10:16,011 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:10:16,019 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-11-03 13:10:16,212 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:10:16,212 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:10:16,213 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:10:16,213 INFO  L85        PathProgramCache]: Analyzing trace with hash -1949849052, now seen corresponding path program 3 times
[2023-11-03 13:10:16,214 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:10:16,214 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038787954]
[2023-11-03 13:10:16,214 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:10:16,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:10:16,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:10:16,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-11-03 13:10:16,656 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:10:16,656 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038787954]
[2023-11-03 13:10:16,656 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038787954] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:10:16,656 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452956530]
[2023-11-03 13:10:16,656 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-11-03 13:10:16,656 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:10:16,657 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:10:16,658 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:10:16,660 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-03 13:10:16,855 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2023-11-03 13:10:16,855 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-03 13:10:16,857 INFO  L263         TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-11-03 13:10:16,860 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:10:16,921 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2023-11-03 13:10:16,964 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2023-11-03 13:10:16,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-11-03 13:10:16,998 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:10:17,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-11-03 13:10:17,444 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [452956530] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:10:17,444 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:10:17,444 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 22
[2023-11-03 13:10:17,445 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703749631]
[2023-11-03 13:10:17,445 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:10:17,445 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2023-11-03 13:10:17,445 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:10:17,446 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2023-11-03 13:10:17,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462
[2023-11-03 13:10:18,439 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 156 out of 279
[2023-11-03 13:10:18,442 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 77 transitions, 503 flow. Second operand  has 22 states, 22 states have (on average 161.0) internal successors, (3542), 22 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:18,442 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:10:18,442 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 279
[2023-11-03 13:10:18,442 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:10:21,284 INFO  L130       PetriNetUnfolder]: 5845/11342 cut-off events.
[2023-11-03 13:10:21,284 INFO  L131       PetriNetUnfolder]: For 23391/23428 co-relation queries the response was YES.
[2023-11-03 13:10:21,314 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 41518 conditions, 11342 events. 5845/11342 cut-off events. For 23391/23428 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 79133 event pairs, 263 based on Foata normal form. 168/11510 useless extension candidates. Maximal degree in co-relation 37398. Up to 6321 conditions per place. 
[2023-11-03 13:10:21,341 INFO  L137   encePairwiseOnDemand]: 268/279 looper letters, 216 selfloop transitions, 16 changer transitions 24/265 dead transitions.
[2023-11-03 13:10:21,341 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 265 transitions, 1921 flow
[2023-11-03 13:10:21,342 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-11-03 13:10:21,343 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2023-11-03 13:10:21,344 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2270 transitions.
[2023-11-03 13:10:21,344 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6258615936035291
[2023-11-03 13:10:21,344 INFO  L72            ComplementDD]: Start complementDD. Operand 13 states and 2270 transitions.
[2023-11-03 13:10:21,344 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 13 states and 2270 transitions.
[2023-11-03 13:10:21,345 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:10:21,345 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2270 transitions.
[2023-11-03 13:10:21,347 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 14 states, 13 states have (on average 174.6153846153846) internal successors, (2270), 13 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:21,351 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:21,351 INFO  L81            ComplementDD]: Finished complementDD. Result  has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:21,351 INFO  L175             Difference]: Start difference. First operand has 110 places, 77 transitions, 503 flow. Second operand 13 states and 2270 transitions.
[2023-11-03 13:10:21,351 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 265 transitions, 1921 flow
[2023-11-03 13:10:21,480 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 265 transitions, 1892 flow, removed 0 selfloop flow, removed 12 redundant places.
[2023-11-03 13:10:21,482 INFO  L231             Difference]: Finished difference. Result has 111 places, 77 transitions, 510 flow
[2023-11-03 13:10:21,482 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=510, PETRI_PLACES=111, PETRI_TRANSITIONS=77}
[2023-11-03 13:10:21,483 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 49 predicate places.
[2023-11-03 13:10:21,483 INFO  L495      AbstractCegarLoop]: Abstraction has has 111 places, 77 transitions, 510 flow
[2023-11-03 13:10:21,484 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 22 states have (on average 161.0) internal successors, (3542), 22 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:21,484 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:10:21,484 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:10:21,495 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-11-03 13:10:21,684 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2023-11-03 13:10:21,685 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:10:21,685 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:10:21,686 INFO  L85        PathProgramCache]: Analyzing trace with hash 405006068, now seen corresponding path program 4 times
[2023-11-03 13:10:21,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:10:21,686 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360502655]
[2023-11-03 13:10:21,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:10:21,687 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:10:21,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:10:22,124 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2023-11-03 13:10:22,125 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:10:22,125 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360502655]
[2023-11-03 13:10:22,125 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360502655] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-03 13:10:22,125 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-03 13:10:22,125 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-11-03 13:10:22,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149139749]
[2023-11-03 13:10:22,126 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-03 13:10:22,126 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-03 13:10:22,127 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:10:22,127 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-03 13:10:22,127 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-11-03 13:10:22,362 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 156 out of 279
[2023-11-03 13:10:22,363 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 77 transitions, 510 flow. Second operand  has 9 states, 9 states have (on average 161.0) internal successors, (1449), 9 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:22,363 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:10:22,363 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 279
[2023-11-03 13:10:22,363 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:10:23,652 INFO  L130       PetriNetUnfolder]: 4133/8203 cut-off events.
[2023-11-03 13:10:23,652 INFO  L131       PetriNetUnfolder]: For 19475/19507 co-relation queries the response was YES.
[2023-11-03 13:10:23,673 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 30661 conditions, 8203 events. 4133/8203 cut-off events. For 19475/19507 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 53724 event pairs, 283 based on Foata normal form. 168/8371 useless extension candidates. Maximal degree in co-relation 27577. Up to 3780 conditions per place. 
[2023-11-03 13:10:23,692 INFO  L137   encePairwiseOnDemand]: 268/279 looper letters, 189 selfloop transitions, 16 changer transitions 20/232 dead transitions.
[2023-11-03 13:10:23,692 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 232 transitions, 1708 flow
[2023-11-03 13:10:23,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-11-03 13:10:23,693 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2023-11-03 13:10:23,694 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1769 transitions.
[2023-11-03 13:10:23,695 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6340501792114696
[2023-11-03 13:10:23,695 INFO  L72            ComplementDD]: Start complementDD. Operand 10 states and 1769 transitions.
[2023-11-03 13:10:23,695 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 10 states and 1769 transitions.
[2023-11-03 13:10:23,695 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:10:23,695 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1769 transitions.
[2023-11-03 13:10:23,697 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 11 states, 10 states have (on average 176.9) internal successors, (1769), 10 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:23,699 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:23,699 INFO  L81            ComplementDD]: Finished complementDD. Result  has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:23,700 INFO  L175             Difference]: Start difference. First operand has 111 places, 77 transitions, 510 flow. Second operand 10 states and 1769 transitions.
[2023-11-03 13:10:23,700 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 232 transitions, 1708 flow
[2023-11-03 13:10:23,794 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 232 transitions, 1649 flow, removed 14 selfloop flow, removed 12 redundant places.
[2023-11-03 13:10:23,796 INFO  L231             Difference]: Finished difference. Result has 108 places, 74 transitions, 473 flow
[2023-11-03 13:10:23,796 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=473, PETRI_PLACES=108, PETRI_TRANSITIONS=74}
[2023-11-03 13:10:23,797 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 46 predicate places.
[2023-11-03 13:10:23,797 INFO  L495      AbstractCegarLoop]: Abstraction has has 108 places, 74 transitions, 473 flow
[2023-11-03 13:10:23,797 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 161.0) internal successors, (1449), 9 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:23,797 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:10:23,797 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:10:23,797 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2023-11-03 13:10:23,797 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:10:23,798 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:10:23,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -1690634853, now seen corresponding path program 1 times
[2023-11-03 13:10:23,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:10:23,798 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679206972]
[2023-11-03 13:10:23,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:10:23,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:10:23,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:10:24,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:10:24,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:10:24,585 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679206972]
[2023-11-03 13:10:24,585 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679206972] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:10:24,586 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800476674]
[2023-11-03 13:10:24,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:10:24,586 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:10:24,586 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:10:24,587 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:10:24,589 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-03 13:10:24,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:10:24,715 INFO  L263         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 34 conjunts are in the unsatisfiable core
[2023-11-03 13:10:24,721 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:10:24,839 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2023-11-03 13:10:24,933 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-03 13:10:24,934 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26
[2023-11-03 13:10:25,003 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-03 13:10:25,004 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26
[2023-11-03 13:10:25,067 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-03 13:10:25,067 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22
[2023-11-03 13:10:25,192 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2023-11-03 13:10:25,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2023-11-03 13:10:25,224 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:10:32,389 WARN  L837   $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#tids~0#1.base|)) (.cse3 (+ 4 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_152|)) (forall ((v_ArrVal_716 Int) (|v_ULTIMATE.start_main_~i~0#1_151| Int)) (or (forall ((v_ArrVal_719 Int)) (let ((.cse1 (mod (select (store (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~0#1_152| 4) |c_ULTIMATE.start_main_~#tids~0#1.offset|) v_ArrVal_716) (+ (* |v_ULTIMATE.start_main_~i~0#1_151| 4) |c_ULTIMATE.start_main_~#tids~0#1.offset|) v_ArrVal_719) .cse3) 4294967296))) (or (not (<= .cse1 2147483647)) (not (= c_threadThread1of4ForFork1_thidvar0 .cse1))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_152| 1) |v_ULTIMATE.start_main_~i~0#1_151|)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_152| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_152|)) (forall ((v_ArrVal_716 Int) (|v_ULTIMATE.start_main_~i~0#1_151| Int)) (or (forall ((v_ArrVal_719 Int)) (let ((.cse4 (mod (select (store (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~0#1_152| 4) |c_ULTIMATE.start_main_~#tids~0#1.offset|) v_ArrVal_716) (+ (* |v_ULTIMATE.start_main_~i~0#1_151| 4) |c_ULTIMATE.start_main_~#tids~0#1.offset|) v_ArrVal_719) .cse3) 4294967296))) (or (not (= (+ c_threadThread1of4ForFork1_thidvar0 4294967296) .cse4)) (<= .cse4 2147483647)))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_152| 1) |v_ULTIMATE.start_main_~i~0#1_151|)))))))) is different from false
[2023-11-03 13:10:32,902 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64
[2023-11-03 13:10:32,909 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 628
[2023-11-03 13:10:33,525 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63
[2023-11-03 13:10:33,533 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 629 treesize of output 613
[2023-11-03 13:10:34,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 9 not checked.
[2023-11-03 13:10:34,402 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800476674] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:10:34,402 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:10:34,402 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 13] total 38
[2023-11-03 13:10:34,402 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284828540]
[2023-11-03 13:10:34,402 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:10:34,403 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2023-11-03 13:10:34,403 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:10:34,403 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2023-11-03 13:10:34,404 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1291, Unknown=1, NotChecked=72, Total=1482
[2023-11-03 13:10:34,828 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 120 out of 279
[2023-11-03 13:10:34,832 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 74 transitions, 473 flow. Second operand  has 39 states, 39 states have (on average 124.05128205128206) internal successors, (4838), 39 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:34,832 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:10:34,832 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 279
[2023-11-03 13:10:34,832 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:10:41,091 INFO  L130       PetriNetUnfolder]: 3815/7661 cut-off events.
[2023-11-03 13:10:41,091 INFO  L131       PetriNetUnfolder]: For 19352/19352 co-relation queries the response was YES.
[2023-11-03 13:10:41,108 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 28914 conditions, 7661 events. 3815/7661 cut-off events. For 19352/19352 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 49832 event pairs, 142 based on Foata normal form. 74/7735 useless extension candidates. Maximal degree in co-relation 25860. Up to 2048 conditions per place. 
[2023-11-03 13:10:41,126 INFO  L137   encePairwiseOnDemand]: 266/279 looper letters, 284 selfloop transitions, 23 changer transitions 24/338 dead transitions.
[2023-11-03 13:10:41,126 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 338 transitions, 2430 flow
[2023-11-03 13:10:41,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2023-11-03 13:10:41,127 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2023-11-03 13:10:41,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2845 transitions.
[2023-11-03 13:10:41,129 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.48557774364225975
[2023-11-03 13:10:41,130 INFO  L72            ComplementDD]: Start complementDD. Operand 21 states and 2845 transitions.
[2023-11-03 13:10:41,130 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 21 states and 2845 transitions.
[2023-11-03 13:10:41,130 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:10:41,130 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2845 transitions.
[2023-11-03 13:10:41,133 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 22 states, 21 states have (on average 135.47619047619048) internal successors, (2845), 21 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:41,137 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 22 states, 22 states have (on average 279.0) internal successors, (6138), 22 states have internal predecessors, (6138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:41,137 INFO  L81            ComplementDD]: Finished complementDD. Result  has 22 states, 22 states have (on average 279.0) internal successors, (6138), 22 states have internal predecessors, (6138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:41,137 INFO  L175             Difference]: Start difference. First operand has 108 places, 74 transitions, 473 flow. Second operand 21 states and 2845 transitions.
[2023-11-03 13:10:41,137 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 338 transitions, 2430 flow
[2023-11-03 13:10:41,250 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 338 transitions, 2390 flow, removed 0 selfloop flow, removed 10 redundant places.
[2023-11-03 13:10:41,253 INFO  L231             Difference]: Finished difference. Result has 120 places, 78 transitions, 511 flow
[2023-11-03 13:10:41,253 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=511, PETRI_PLACES=120, PETRI_TRANSITIONS=78}
[2023-11-03 13:10:41,253 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 58 predicate places.
[2023-11-03 13:10:41,253 INFO  L495      AbstractCegarLoop]: Abstraction has has 120 places, 78 transitions, 511 flow
[2023-11-03 13:10:41,254 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 39 states, 39 states have (on average 124.05128205128206) internal successors, (4838), 39 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:10:41,254 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:10:41,254 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:10:41,261 INFO  L540       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-03 13:10:41,454 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:10:41,456 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:10:41,456 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:10:41,456 INFO  L85        PathProgramCache]: Analyzing trace with hash 1423211261, now seen corresponding path program 2 times
[2023-11-03 13:10:41,457 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:10:41,457 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154191050]
[2023-11-03 13:10:41,457 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:10:41,457 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:10:41,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:10:42,395 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:10:42,395 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:10:42,395 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154191050]
[2023-11-03 13:10:42,395 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154191050] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:10:42,395 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786800054]
[2023-11-03 13:10:42,395 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-03 13:10:42,395 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:10:42,395 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:10:42,397 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:10:42,399 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-03 13:10:42,540 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-11-03 13:10:42,541 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-03 13:10:42,543 INFO  L263         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 42 conjunts are in the unsatisfiable core
[2023-11-03 13:10:42,549 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:10:42,867 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2023-11-03 13:10:42,920 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-03 13:10:42,921 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22
[2023-11-03 13:10:43,126 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2023-11-03 13:10:43,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:10:43,159 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:10:43,827 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65
[2023-11-03 13:10:43,829 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69
[2023-11-03 13:10:43,857 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65
[2023-11-03 13:10:43,862 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 68
[2023-11-03 13:10:46,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-03 13:10:46,926 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786800054] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-03 13:10:46,926 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-03 13:10:46,926 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 43
[2023-11-03 13:10:46,927 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287291201]
[2023-11-03 13:10:46,927 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-03 13:10:46,927 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2023-11-03 13:10:46,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-03 13:10:46,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2023-11-03 13:10:46,929 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1738, Unknown=0, NotChecked=0, Total=1892
[2023-11-03 13:11:04,292 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 155 out of 279
[2023-11-03 13:11:04,296 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 78 transitions, 511 flow. Second operand  has 44 states, 44 states have (on average 158.72727272727272) internal successors, (6984), 44 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:11:04,296 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-03 13:11:04,296 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 279
[2023-11-03 13:11:04,296 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-03 13:11:11,548 INFO  L130       PetriNetUnfolder]: 3797/7643 cut-off events.
[2023-11-03 13:11:11,548 INFO  L131       PetriNetUnfolder]: For 19618/19618 co-relation queries the response was YES.
[2023-11-03 13:11:11,569 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 29586 conditions, 7643 events. 3797/7643 cut-off events. For 19618/19618 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 49850 event pairs, 178 based on Foata normal form. 18/7661 useless extension candidates. Maximal degree in co-relation 26272. Up to 2048 conditions per place. 
[2023-11-03 13:11:11,586 INFO  L137   encePairwiseOnDemand]: 268/279 looper letters, 238 selfloop transitions, 19 changer transitions 28/292 dead transitions.
[2023-11-03 13:11:11,587 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 292 transitions, 2130 flow
[2023-11-03 13:11:11,587 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2023-11-03 13:11:11,587 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 18 states.
[2023-11-03 13:11:11,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3068 transitions.
[2023-11-03 13:11:11,590 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6109119872560733
[2023-11-03 13:11:11,590 INFO  L72            ComplementDD]: Start complementDD. Operand 18 states and 3068 transitions.
[2023-11-03 13:11:11,590 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 18 states and 3068 transitions.
[2023-11-03 13:11:11,590 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-03 13:11:11,591 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3068 transitions.
[2023-11-03 13:11:11,593 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 19 states, 18 states have (on average 170.44444444444446) internal successors, (3068), 18 states have internal predecessors, (3068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:11:11,596 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:11:11,597 INFO  L81            ComplementDD]: Finished complementDD. Result  has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:11:11,597 INFO  L175             Difference]: Start difference. First operand has 120 places, 78 transitions, 511 flow. Second operand 18 states and 3068 transitions.
[2023-11-03 13:11:11,597 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 292 transitions, 2130 flow
[2023-11-03 13:11:11,742 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 292 transitions, 2061 flow, removed 10 selfloop flow, removed 20 redundant places.
[2023-11-03 13:11:11,744 INFO  L231             Difference]: Finished difference. Result has 118 places, 78 transitions, 484 flow
[2023-11-03 13:11:11,745 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=484, PETRI_PLACES=118, PETRI_TRANSITIONS=78}
[2023-11-03 13:11:11,745 INFO  L288   CegarLoopForPetriNet]: 62 programPoint places, 56 predicate places.
[2023-11-03 13:11:11,745 INFO  L495      AbstractCegarLoop]: Abstraction has has 118 places, 78 transitions, 484 flow
[2023-11-03 13:11:11,746 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 44 states, 44 states have (on average 158.72727272727272) internal successors, (6984), 44 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-03 13:11:11,746 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-11-03 13:11:11,746 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-03 13:11:11,753 INFO  L552       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2023-11-03 13:11:11,947 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30
[2023-11-03 13:11:11,948 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] ===
[2023-11-03 13:11:11,948 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-03 13:11:11,948 INFO  L85        PathProgramCache]: Analyzing trace with hash -512193251, now seen corresponding path program 3 times
[2023-11-03 13:11:11,949 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-03 13:11:11,949 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013465867]
[2023-11-03 13:11:11,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-03 13:11:11,949 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-03 13:11:11,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-03 13:11:12,902 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2023-11-03 13:11:12,902 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-03 13:11:12,902 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013465867]
[2023-11-03 13:11:12,903 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013465867] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-03 13:11:12,903 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637485167]
[2023-11-03 13:11:12,903 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-11-03 13:11:12,903 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-03 13:11:12,903 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-11-03 13:11:12,904 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-03 13:11:12,907 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-11-03 13:11:13,526 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2023-11-03 13:11:13,526 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-03 13:11:13,528 INFO  L263         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 51 conjunts are in the unsatisfiable core
[2023-11-03 13:11:13,533 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-11-03 13:11:13,740 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2023-11-03 13:11:13,929 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31
[2023-11-03 13:11:14,127 INFO  L321             Elim1Store]: treesize reduction 49, result has 32.9 percent of original size
[2023-11-03 13:11:14,127 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41
[2023-11-03 13:11:15,105 INFO  L321             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-03 13:11:15,106 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 178 treesize of output 224
[2023-11-03 13:11:17,824 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-11-03 13:11:17,824 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2023-11-03 13:11:23,638 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 605 treesize of output 573
[2023-11-03 13:11:23,988 INFO  L321             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-03 13:11:23,990 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 12781 treesize of output 12686
Killed by 15
