./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-counter-inner-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-counter-inner-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 dd5321e235da5f7a430af951284303cf9459356c9ce48ae670d8b1952b7ec0b4
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-27 12:48:55,650 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-27 12:48:55,652 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-27 12:48:55,702 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-27 12:48:55,703 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-27 12:48:55,705 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-27 12:48:55,707 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-27 12:48:55,709 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-27 12:48:55,711 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-27 12:48:55,714 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-27 12:48:55,715 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-27 12:48:55,717 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-27 12:48:55,717 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-27 12:48:55,718 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-27 12:48:55,720 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-27 12:48:55,728 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-27 12:48:55,730 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-27 12:48:55,730 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-27 12:48:55,731 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-27 12:48:55,735 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-27 12:48:55,736 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-27 12:48:55,737 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-27 12:48:55,739 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-27 12:48:55,739 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-27 12:48:55,761 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-27 12:48:55,761 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-27 12:48:55,762 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-27 12:48:55,763 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-27 12:48:55,763 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-27 12:48:55,764 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-27 12:48:55,764 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-27 12:48:55,766 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-27 12:48:55,767 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-27 12:48:55,768 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-27 12:48:55,768 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-27 12:48:55,768 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-27 12:48:55,769 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-27 12:48:55,769 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-27 12:48:55,769 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-27 12:48:55,770 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-27 12:48:55,771 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-27 12:48:55,771 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-27 12:48:55,809 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-27 12:48:55,809 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-27 12:48:55,809 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-27 12:48:55,810 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-27 12:48:55,810 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-27 12:48:55,810 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-27 12:48:55,811 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-27 12:48:55,811 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-27 12:48:55,811 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-27 12:48:55,812 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-27 12:48:55,812 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-27 12:48:55,812 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-27 12:48:55,813 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-27 12:48:55,813 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-27 12:48:55,813 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-27 12:48:55,813 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-27 12:48:55,813 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-27 12:48:55,814 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-27 12:48:55,814 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-27 12:48:55,814 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-27 12:48:55,814 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-27 12:48:55,814 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-27 12:48:55,815 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-27 12:48:55,815 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-27 12:48:55,815 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-27 12:48:55,815 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-27 12:48:55,815 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:48:55,816 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-27 12:48:55,816 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-27 12:48:55,816 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-27 12:48:55,816 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-27 12:48:55,816 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-27 12:48:55,817 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-27 12:48:55,817 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-27 12:48:55,817 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-27 12:48:55,818 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-27 12:48:55,818 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-27 12:48:55,818 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 -> dd5321e235da5f7a430af951284303cf9459356c9ce48ae670d8b1952b7ec0b4
[2023-10-27 12:48:56,180 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-27 12:48:56,217 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-27 12:48:56,220 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-27 12:48:56,220 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-27 12:48:56,221 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-27 12:48:56,222 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race-3.i
[2023-10-27 12:48:57,834 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-27 12:48:58,195 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-27 12:48:58,200 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-counter-inner-race-3.i
[2023-10-27 12:48:58,216 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/1be6b8c9a/d932afa991ab48c5a7588daab68d520b/FLAG9b5ba3fdd
[2023-10-27 12:48:58,244 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/1be6b8c9a/d932afa991ab48c5a7588daab68d520b
[2023-10-27 12:48:58,247 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-27 12:48:58,256 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-27 12:48:58,258 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-27 12:48:58,258 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-27 12:48:58,260 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-27 12:48:58,261 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:58,262 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e2d9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58, skipping insertion in model container
[2023-10-27 12:48:58,262 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:58,277 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-27 12:48:58,342 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-27 12:48:58,791 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:48:58,795 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:48:58,821 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-27 12:48:58,900 WARN  L623        FunctionHandler]: Unknown extern function pthread_detach
[2023-10-27 12:48:58,909 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-27 12:48:58,969 INFO  L208         MainTranslator]: Completed translation
[2023-10-27 12:48:58,976 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58 WrapperNode
[2023-10-27 12:48:58,977 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-27 12:48:58,980 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-27 12:48:58,981 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-27 12:48:58,981 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-27 12:48:58,986 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,035 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,078 INFO  L138                Inliner]: procedures = 159, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111
[2023-10-27 12:48:59,078 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-27 12:48:59,079 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-27 12:48:59,079 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-27 12:48:59,079 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-27 12:48:59,092 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,092 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,095 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,095 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,099 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,120 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,128 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,142 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,144 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-27 12:48:59,149 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-27 12:48:59,149 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-27 12:48:59,149 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-27 12:48:59,150 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (1/1) ...
[2023-10-27 12:48:59,154 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-27 12:48:59,177 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-27 12:48:59,191 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)
[2023-10-27 12:48:59,222 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
[2023-10-27 12:48:59,243 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-27 12:48:59,243 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-27 12:48:59,243 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-27 12:48:59,247 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-27 12:48:59,247 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-27 12:48:59,247 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-27 12:48:59,247 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2023-10-27 12:48:59,247 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-27 12:48:59,248 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-27 12:48:59,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-27 12:48:59,248 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-27 12:48:59,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-27 12:48:59,250 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-27 12:48:59,473 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-27 12:48:59,483 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-27 12:48:59,925 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-27 12:48:59,932 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-27 12:48:59,947 INFO  L300             CfgBuilder]: Removed 4 assume(true) statements.
[2023-10-27 12:48:59,950 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:48:59 BoogieIcfgContainer
[2023-10-27 12:48:59,950 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-27 12:48:59,952 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-27 12:48:59,952 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-27 12:48:59,954 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-27 12:48:59,954 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:48:58" (1/3) ...
[2023-10-27 12:48:59,955 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0b6a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:48:59, skipping insertion in model container
[2023-10-27 12:48:59,955 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:48:58" (2/3) ...
[2023-10-27 12:48:59,956 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0b6a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:48:59, skipping insertion in model container
[2023-10-27 12:48:59,956 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:48:59" (3/3) ...
[2023-10-27 12:48:59,957 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race-3.i
[2023-10-27 12:48:59,976 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-27 12:48:59,984 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-27 12:48:59,984 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2023-10-27 12:48:59,984 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-27 12:49:00,063 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:00,123 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 172 places, 177 transitions, 359 flow
[2023-10-27 12:49:00,289 INFO  L130       PetriNetUnfolder]: 13/224 cut-off events.
[2023-10-27 12:49:00,290 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:00,296 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 229 conditions, 224 events. 13/224 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 119. Up to 4 conditions per place. 
[2023-10-27 12:49:00,301 INFO  L82        GeneralOperation]: Start removeDead. Operand has 172 places, 177 transitions, 359 flow
[2023-10-27 12:49:00,320 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 172 places, 177 transitions, 359 flow
[2023-10-27 12:49:00,323 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:00,345 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 177 transitions, 359 flow
[2023-10-27 12:49:00,371 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 177 transitions, 359 flow
[2023-10-27 12:49:00,372 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 172 places, 177 transitions, 359 flow
[2023-10-27 12:49:00,439 INFO  L130       PetriNetUnfolder]: 13/224 cut-off events.
[2023-10-27 12:49:00,453 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:00,456 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 229 conditions, 224 events. 13/224 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 119. Up to 4 conditions per place. 
[2023-10-27 12:49:00,459 INFO  L119        LiptonReduction]: Number of co-enabled transitions 7128
[2023-10-27 12:49:05,622 INFO  L134        LiptonReduction]: Checked pairs total: 35225
[2023-10-27 12:49:05,633 INFO  L136        LiptonReduction]: Total number of compositions: 116
[2023-10-27 12:49:05,666 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:05,682 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;@73eb7c90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:05,682 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 18 error locations.
[2023-10-27 12:49:05,687 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:49:05,687 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:05,687 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:05,688 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:49:05,688 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] ===
[2023-10-27 12:49:05,692 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:05,692 INFO  L85        PathProgramCache]: Analyzing trace with hash 18283000, now seen corresponding path program 1 times
[2023-10-27 12:49:05,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:05,709 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800722386]
[2023-10-27 12:49:05,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:05,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:05,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:06,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:06,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:06,071 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800722386]
[2023-10-27 12:49:06,071 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800722386] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:06,071 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:06,071 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:06,072 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123931768]
[2023-10-27 12:49:06,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:06,078 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:06,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:06,127 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:06,128 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:06,180 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 157 out of 293
[2023-10-27 12:49:06,184 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 145 flow. Second operand  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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)
[2023-10-27 12:49:06,185 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:06,185 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 293
[2023-10-27 12:49:06,185 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:06,488 INFO  L130       PetriNetUnfolder]: 386/1153 cut-off events.
[2023-10-27 12:49:06,488 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:06,490 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1917 conditions, 1153 events. 386/1153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7514 event pairs, 86 based on Foata normal form. 25/1051 useless extension candidates. Maximal degree in co-relation 1864. Up to 434 conditions per place. 
[2023-10-27 12:49:06,496 INFO  L137   encePairwiseOnDemand]: 277/293 looper letters, 54 selfloop transitions, 8 changer transitions 0/91 dead transitions.
[2023-10-27 12:49:06,497 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 311 flow
[2023-10-27 12:49:06,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:06,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:06,518 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions.
[2023-10-27 12:49:06,524 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6200227531285551
[2023-10-27 12:49:06,525 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 545 transitions.
[2023-10-27 12:49:06,525 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions.
[2023-10-27 12:49:06,528 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:06,530 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions.
[2023-10-27 12:49:06,550 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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)
[2023-10-27 12:49:06,556 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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)
[2023-10-27 12:49:06,557 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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)
[2023-10-27 12:49:06,559 INFO  L175             Difference]: Start difference. First operand has 67 places, 70 transitions, 145 flow. Second operand 3 states and 545 transitions.
[2023-10-27 12:49:06,559 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 311 flow
[2023-10-27 12:49:06,562 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 311 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-27 12:49:06,564 INFO  L231             Difference]: Finished difference. Result has 68 places, 70 transitions, 193 flow
[2023-10-27 12:49:06,566 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=68, PETRI_TRANSITIONS=70}
[2023-10-27 12:49:06,584 INFO  L288   CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places.
[2023-10-27 12:49:06,584 INFO  L495      AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 193 flow
[2023-10-27 12:49:06,585 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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)
[2023-10-27 12:49:06,585 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:06,585 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-27 12:49:06,586 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-27 12:49:06,586 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] ===
[2023-10-27 12:49:06,587 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:06,587 INFO  L85        PathProgramCache]: Analyzing trace with hash 400357341, now seen corresponding path program 1 times
[2023-10-27 12:49:06,589 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:06,590 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850794175]
[2023-10-27 12:49:06,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:06,590 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:06,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:06,691 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:49:06,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:06,768 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:49:06,769 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:49:06,773 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining)
[2023-10-27 12:49:06,779 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining)
[2023-10-27 12:49:06,780 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining)
[2023-10-27 12:49:06,780 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining)
[2023-10-27 12:49:06,781 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining)
[2023-10-27 12:49:06,781 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining)
[2023-10-27 12:49:06,781 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining)
[2023-10-27 12:49:06,781 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining)
[2023-10-27 12:49:06,781 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining)
[2023-10-27 12:49:06,782 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining)
[2023-10-27 12:49:06,782 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining)
[2023-10-27 12:49:06,782 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining)
[2023-10-27 12:49:06,782 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining)
[2023-10-27 12:49:06,782 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining)
[2023-10-27 12:49:06,783 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining)
[2023-10-27 12:49:06,783 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining)
[2023-10-27 12:49:06,792 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining)
[2023-10-27 12:49:06,793 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining)
[2023-10-27 12:49:06,793 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-27 12:49:06,793 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-27 12:49:06,795 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:49:06,795 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-27 12:49:06,852 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:06,855 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 227 places, 232 transitions, 476 flow
[2023-10-27 12:49:07,001 INFO  L130       PetriNetUnfolder]: 20/344 cut-off events.
[2023-10-27 12:49:07,002 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:49:07,003 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 354 conditions, 344 events. 20/344 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 854 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 225. Up to 6 conditions per place. 
[2023-10-27 12:49:07,003 INFO  L82        GeneralOperation]: Start removeDead. Operand has 227 places, 232 transitions, 476 flow
[2023-10-27 12:49:07,005 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 227 places, 232 transitions, 476 flow
[2023-10-27 12:49:07,005 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:07,006 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 232 transitions, 476 flow
[2023-10-27 12:49:07,006 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 232 transitions, 476 flow
[2023-10-27 12:49:07,006 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 227 places, 232 transitions, 476 flow
[2023-10-27 12:49:07,077 INFO  L130       PetriNetUnfolder]: 20/344 cut-off events.
[2023-10-27 12:49:07,093 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-10-27 12:49:07,095 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 354 conditions, 344 events. 20/344 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 854 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 225. Up to 6 conditions per place. 
[2023-10-27 12:49:07,103 INFO  L119        LiptonReduction]: Number of co-enabled transitions 20196
[2023-10-27 12:49:12,306 INFO  L134        LiptonReduction]: Checked pairs total: 129818
[2023-10-27 12:49:12,307 INFO  L136        LiptonReduction]: Total number of compositions: 132
[2023-10-27 12:49:12,308 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:12,309 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;@73eb7c90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:12,309 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 24 error locations.
[2023-10-27 12:49:12,311 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:49:12,311 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:12,311 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:12,311 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:49:12,311 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:12,311 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:12,311 INFO  L85        PathProgramCache]: Analyzing trace with hash 31179224, now seen corresponding path program 1 times
[2023-10-27 12:49:12,311 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:12,312 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403524438]
[2023-10-27 12:49:12,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:12,312 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:12,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:12,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:12,369 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:12,369 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403524438]
[2023-10-27 12:49:12,372 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403524438] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:12,372 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:12,372 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:12,373 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799548253]
[2023-10-27 12:49:12,385 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:12,386 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:12,386 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:12,386 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:12,386 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:12,444 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 202 out of 364
[2023-10-27 12:49:12,446 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 110 transitions, 232 flow. Second operand  has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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)
[2023-10-27 12:49:12,447 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:12,447 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 364
[2023-10-27 12:49:12,447 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:17,674 INFO  L130       PetriNetUnfolder]: 19843/39157 cut-off events.
[2023-10-27 12:49:17,674 INFO  L131       PetriNetUnfolder]: For 58/58 co-relation queries the response was YES.
[2023-10-27 12:49:17,749 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 69268 conditions, 39157 events. 19843/39157 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 380141 event pairs, 6355 based on Foata normal form. 1105/36036 useless extension candidates. Maximal degree in co-relation 42005. Up to 16272 conditions per place. 
[2023-10-27 12:49:18,101 INFO  L137   encePairwiseOnDemand]: 337/364 looper letters, 96 selfloop transitions, 16 changer transitions 0/157 dead transitions.
[2023-10-27 12:49:18,102 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 157 transitions, 555 flow
[2023-10-27 12:49:18,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:18,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:18,103 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions.
[2023-10-27 12:49:18,104 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6721611721611722
[2023-10-27 12:49:18,104 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 734 transitions.
[2023-10-27 12:49:18,104 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions.
[2023-10-27 12:49:18,104 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:18,104 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions.
[2023-10-27 12:49:18,106 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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)
[2023-10-27 12:49:18,123 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 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)
[2023-10-27 12:49:18,124 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 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)
[2023-10-27 12:49:18,124 INFO  L175             Difference]: Start difference. First operand has 107 places, 110 transitions, 232 flow. Second operand 3 states and 734 transitions.
[2023-10-27 12:49:18,125 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 157 transitions, 555 flow
[2023-10-27 12:49:18,127 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 157 transitions, 553 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-10-27 12:49:18,129 INFO  L231             Difference]: Finished difference. Result has 110 places, 121 transitions, 360 flow
[2023-10-27 12:49:18,130 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=110, PETRI_TRANSITIONS=121}
[2023-10-27 12:49:18,130 INFO  L288   CegarLoopForPetriNet]: 107 programPoint places, 3 predicate places.
[2023-10-27 12:49:18,131 INFO  L495      AbstractCegarLoop]: Abstraction has has 110 places, 121 transitions, 360 flow
[2023-10-27 12:49:18,131 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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)
[2023-10-27 12:49:18,132 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:18,132 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:49:18,132 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-27 12:49:18,132 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:18,132 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:18,133 INFO  L85        PathProgramCache]: Analyzing trace with hash 139998640, now seen corresponding path program 1 times
[2023-10-27 12:49:18,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:18,133 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182038662]
[2023-10-27 12:49:18,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:18,134 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:18,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:18,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:18,201 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:18,217 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182038662]
[2023-10-27 12:49:18,218 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182038662] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:18,218 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:18,218 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:18,219 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65567528]
[2023-10-27 12:49:18,219 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:18,220 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:18,220 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:18,220 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:18,221 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:18,236 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 216 out of 364
[2023-10-27 12:49:18,237 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 121 transitions, 360 flow. Second operand  has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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)
[2023-10-27 12:49:18,237 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:18,238 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 364
[2023-10-27 12:49:18,238 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:22,080 INFO  L130       PetriNetUnfolder]: 17255/35571 cut-off events.
[2023-10-27 12:49:22,081 INFO  L131       PetriNetUnfolder]: For 6785/6900 co-relation queries the response was YES.
[2023-10-27 12:49:22,126 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 69364 conditions, 35571 events. 17255/35571 cut-off events. For 6785/6900 co-relation queries the response was YES. Maximal size of possible extension queue 1102. Compared 361438 event pairs, 11181 based on Foata normal form. 0/31224 useless extension candidates. Maximal degree in co-relation 27588. Up to 23695 conditions per place. 
[2023-10-27 12:49:22,361 INFO  L137   encePairwiseOnDemand]: 359/364 looper letters, 86 selfloop transitions, 4 changer transitions 0/159 dead transitions.
[2023-10-27 12:49:22,363 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 159 transitions, 646 flow
[2023-10-27 12:49:22,363 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:22,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:22,364 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions.
[2023-10-27 12:49:22,364 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6675824175824175
[2023-10-27 12:49:22,365 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 729 transitions.
[2023-10-27 12:49:22,365 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions.
[2023-10-27 12:49:22,365 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:22,365 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions.
[2023-10-27 12:49:22,366 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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)
[2023-10-27 12:49:22,368 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 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)
[2023-10-27 12:49:22,369 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 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)
[2023-10-27 12:49:22,369 INFO  L175             Difference]: Start difference. First operand has 110 places, 121 transitions, 360 flow. Second operand 3 states and 729 transitions.
[2023-10-27 12:49:22,369 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 159 transitions, 646 flow
[2023-10-27 12:49:22,486 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 159 transitions, 604 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-27 12:49:22,491 INFO  L231             Difference]: Finished difference. Result has 111 places, 124 transitions, 354 flow
[2023-10-27 12:49:22,491 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=111, PETRI_TRANSITIONS=124}
[2023-10-27 12:49:22,493 INFO  L288   CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places.
[2023-10-27 12:49:22,493 INFO  L495      AbstractCegarLoop]: Abstraction has has 111 places, 124 transitions, 354 flow
[2023-10-27 12:49:22,495 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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)
[2023-10-27 12:49:22,495 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:22,495 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-27 12:49:22,495 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-27 12:49:22,495 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:22,496 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:22,500 INFO  L85        PathProgramCache]: Analyzing trace with hash 1986212671, now seen corresponding path program 1 times
[2023-10-27 12:49:22,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:22,501 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265246598]
[2023-10-27 12:49:22,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:22,512 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:22,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:22,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:22,572 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:22,573 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265246598]
[2023-10-27 12:49:22,573 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265246598] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:22,573 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:22,573 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:22,573 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314122496]
[2023-10-27 12:49:22,574 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:22,574 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:22,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:22,574 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:22,574 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:22,626 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 210 out of 364
[2023-10-27 12:49:22,627 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 124 transitions, 354 flow. Second operand  has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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)
[2023-10-27 12:49:22,627 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:22,627 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 364
[2023-10-27 12:49:22,627 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-27 12:49:24,051 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([896] L699-1-->L700-1: Formula: (= |v_#race~threads_alive~0_35| 0)  InVars {}  OutVars{threadThread1of2ForFork0_#t~nondet8=|v_threadThread1of2ForFork0_#t~nondet8_7|, #race~threads_alive~0=|v_#race~threads_alive~0_35|}  AuxVars[]  AssignedVars[threadThread1of2ForFork0_#t~nondet8, #race~threads_alive~0][105], [136#L700-1true, Black: 238#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet20#1|), 51#L721-4true, threadThread1of2ForFork0InUse, 26#L687-2true, threadThread2of2ForFork0InUse, 241#true, 236#true, Black: 230#true])
[2023-10-27 12:49:24,052 INFO  L383   tUnfolder$Statistics]: this new event has 38 ancestors and is not cut-off event
[2023-10-27 12:49:24,052 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is not cut-off event
[2023-10-27 12:49:24,052 INFO  L386   tUnfolder$Statistics]:   existing Event has 43 ancestors and is not cut-off event
[2023-10-27 12:49:24,053 INFO  L386   tUnfolder$Statistics]:   existing Event has 38 ancestors and is not cut-off event
[2023-10-27 12:49:25,922 INFO  L130       PetriNetUnfolder]: 19129/38157 cut-off events.
[2023-10-27 12:49:25,923 INFO  L131       PetriNetUnfolder]: For 6740/8833 co-relation queries the response was YES.
[2023-10-27 12:49:25,973 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 77433 conditions, 38157 events. 19129/38157 cut-off events. For 6740/8833 co-relation queries the response was YES. Maximal size of possible extension queue 1137. Compared 377207 event pairs, 11468 based on Foata normal form. 747/34527 useless extension candidates. Maximal degree in co-relation 50803. Up to 26808 conditions per place. 
[2023-10-27 12:49:26,269 INFO  L137   encePairwiseOnDemand]: 355/364 looper letters, 82 selfloop transitions, 15 changer transitions 0/161 dead transitions.
[2023-10-27 12:49:26,285 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 161 transitions, 656 flow
[2023-10-27 12:49:26,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-27 12:49:26,286 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-27 12:49:26,290 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions.
[2023-10-27 12:49:26,291 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6501831501831502
[2023-10-27 12:49:26,292 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 710 transitions.
[2023-10-27 12:49:26,292 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions.
[2023-10-27 12:49:26,293 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-27 12:49:26,294 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions.
[2023-10-27 12:49:26,296 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 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)
[2023-10-27 12:49:26,298 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 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)
[2023-10-27 12:49:26,301 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 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)
[2023-10-27 12:49:26,301 INFO  L175             Difference]: Start difference. First operand has 111 places, 124 transitions, 354 flow. Second operand 3 states and 710 transitions.
[2023-10-27 12:49:26,301 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 161 transitions, 656 flow
[2023-10-27 12:49:26,327 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 161 transitions, 651 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-27 12:49:26,332 INFO  L231             Difference]: Finished difference. Result has 113 places, 137 transitions, 473 flow
[2023-10-27 12:49:26,332 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=113, PETRI_TRANSITIONS=137}
[2023-10-27 12:49:26,334 INFO  L288   CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places.
[2023-10-27 12:49:26,334 INFO  L495      AbstractCegarLoop]: Abstraction has has 113 places, 137 transitions, 473 flow
[2023-10-27 12:49:26,335 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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)
[2023-10-27 12:49:26,337 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:26,337 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-27 12:49:26,338 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-27 12:49:26,338 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2023-10-27 12:49:26,339 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:26,339 INFO  L85        PathProgramCache]: Analyzing trace with hash 1346647050, now seen corresponding path program 1 times
[2023-10-27 12:49:26,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:26,341 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623031337]
[2023-10-27 12:49:26,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:26,342 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:26,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:26,395 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-27 12:49:26,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-27 12:49:26,438 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-27 12:49:26,439 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-27 12:49:26,442 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining)
[2023-10-27 12:49:26,443 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining)
[2023-10-27 12:49:26,443 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining)
[2023-10-27 12:49:26,443 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining)
[2023-10-27 12:49:26,444 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining)
[2023-10-27 12:49:26,444 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining)
[2023-10-27 12:49:26,444 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining)
[2023-10-27 12:49:26,444 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining)
[2023-10-27 12:49:26,445 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining)
[2023-10-27 12:49:26,445 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining)
[2023-10-27 12:49:26,446 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining)
[2023-10-27 12:49:26,446 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining)
[2023-10-27 12:49:26,446 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining)
[2023-10-27 12:49:26,446 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining)
[2023-10-27 12:49:26,446 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining)
[2023-10-27 12:49:26,446 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining)
[2023-10-27 12:49:26,447 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining)
[2023-10-27 12:49:26,449 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining)
[2023-10-27 12:49:26,449 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-27 12:49:26,449 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-27 12:49:26,450 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-27 12:49:26,450 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-27 12:49:26,495 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-10-27 12:49:26,517 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 282 places, 287 transitions, 595 flow
[2023-10-27 12:49:26,602 INFO  L130       PetriNetUnfolder]: 27/464 cut-off events.
[2023-10-27 12:49:26,602 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:49:26,605 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 480 conditions, 464 events. 27/464 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1275 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 348. Up to 8 conditions per place. 
[2023-10-27 12:49:26,605 INFO  L82        GeneralOperation]: Start removeDead. Operand has 282 places, 287 transitions, 595 flow
[2023-10-27 12:49:26,607 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 282 places, 287 transitions, 595 flow
[2023-10-27 12:49:26,608 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-27 12:49:26,608 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 287 transitions, 595 flow
[2023-10-27 12:49:26,609 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 287 transitions, 595 flow
[2023-10-27 12:49:26,609 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 282 places, 287 transitions, 595 flow
[2023-10-27 12:49:26,693 INFO  L130       PetriNetUnfolder]: 27/464 cut-off events.
[2023-10-27 12:49:26,693 INFO  L131       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-10-27 12:49:26,695 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 480 conditions, 464 events. 27/464 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1275 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 348. Up to 8 conditions per place. 
[2023-10-27 12:49:26,713 INFO  L119        LiptonReduction]: Number of co-enabled transitions 39204
[2023-10-27 12:49:31,299 INFO  L134        LiptonReduction]: Checked pairs total: 234559
[2023-10-27 12:49:31,299 INFO  L136        LiptonReduction]: Total number of compositions: 151
[2023-10-27 12:49:31,301 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-27 12:49:31,301 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;@73eb7c90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-27 12:49:31,301 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 30 error locations.
[2023-10-27 12:49:31,319 INFO  L130       PetriNetUnfolder]: 0/6 cut-off events.
[2023-10-27 12:49:31,319 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-27 12:49:31,319 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-27 12:49:31,319 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-10-27 12:49:31,319 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2023-10-27 12:49:31,320 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-27 12:49:31,320 INFO  L85        PathProgramCache]: Analyzing trace with hash 46353368, now seen corresponding path program 1 times
[2023-10-27 12:49:31,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-27 12:49:31,320 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906162304]
[2023-10-27 12:49:31,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-27 12:49:31,320 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-27 12:49:31,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-27 12:49:31,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-27 12:49:31,354 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-27 12:49:31,355 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906162304]
[2023-10-27 12:49:31,355 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906162304] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-27 12:49:31,355 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-27 12:49:31,355 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-27 12:49:31,355 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4580820]
[2023-10-27 12:49:31,355 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-27 12:49:31,355 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-27 12:49:31,356 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-27 12:49:31,356 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-27 12:49:31,356 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-27 12:49:31,420 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 247 out of 438
[2023-10-27 12:49:31,421 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 147 transitions, 315 flow. Second operand  has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 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)
[2023-10-27 12:49:31,421 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-27 12:49:31,421 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 438
[2023-10-27 12:49:31,421 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
