./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-binomial-race.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-binomial-race.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 3b42443e7ea0b7e04388273c1c845fbe12b7d7fa8d00dbe66cfe69244a92bda0
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-25 15:23:13,582 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-25 15:23:13,583 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-25 15:23:13,636 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-25 15:23:13,637 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-25 15:23:13,638 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-25 15:23:13,639 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-25 15:23:13,640 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-25 15:23:13,661 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-25 15:23:13,665 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-25 15:23:13,666 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-25 15:23:13,669 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-25 15:23:13,669 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-25 15:23:13,671 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-25 15:23:13,672 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-25 15:23:13,674 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-25 15:23:13,675 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-25 15:23:13,676 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-25 15:23:13,677 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-25 15:23:13,682 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-25 15:23:13,683 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-25 15:23:13,685 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-25 15:23:13,686 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-25 15:23:13,686 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-25 15:23:13,688 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-25 15:23:13,688 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-25 15:23:13,689 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-25 15:23:13,690 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-25 15:23:13,690 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-25 15:23:13,706 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-25 15:23:13,706 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-25 15:23:13,707 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-25 15:23:13,709 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-25 15:23:13,709 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-25 15:23:13,714 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-25 15:23:13,715 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-25 15:23:13,715 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-25 15:23:13,715 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-25 15:23:13,716 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-25 15:23:13,717 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-25 15:23:13,717 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-25 15:23:13,718 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-25 15:23:13,745 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-25 15:23:13,746 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-25 15:23:13,746 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-25 15:23:13,746 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-25 15:23:13,747 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-25 15:23:13,747 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-25 15:23:13,748 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-25 15:23:13,761 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-25 15:23:13,761 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-25 15:23:13,762 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-25 15:23:13,762 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-25 15:23:13,763 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-25 15:23:13,763 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-25 15:23:13,763 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-25 15:23:13,763 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-25 15:23:13,763 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-25 15:23:13,764 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-25 15:23:13,764 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-25 15:23:13,764 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-25 15:23:13,764 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-25 15:23:13,764 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-25 15:23:13,764 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-25 15:23:13,765 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-25 15:23:13,765 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-25 15:23:13,765 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-25 15:23:13,765 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-25 15:23:13,765 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-25 15:23:13,766 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-25 15:23:13,766 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-25 15:23:13,766 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-25 15:23:13,766 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-25 15:23:13,766 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-25 15:23:13,767 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-25 15:23:13,767 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-25 15:23:13,767 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-25 15:23:13,768 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-25 15:23:13,768 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-25 15:23:13,768 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 -> 3b42443e7ea0b7e04388273c1c845fbe12b7d7fa8d00dbe66cfe69244a92bda0
[2023-10-25 15:23:14,131 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-25 15:23:14,167 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-25 15:23:14,169 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-25 15:23:14,170 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-25 15:23:14,170 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-25 15:23:14,171 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-binomial-race.i
[2023-10-25 15:23:15,808 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-25 15:23:16,204 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-25 15:23:16,205 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/thread-join-binomial-race.i
[2023-10-25 15:23:16,220 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/3d1bea905/c4ac6b81e1f440cdb5d3d474501f9314/FLAG1fe5c8964
[2023-10-25 15:23:16,251 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/3d1bea905/c4ac6b81e1f440cdb5d3d474501f9314
[2023-10-25 15:23:16,255 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-25 15:23:16,256 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-25 15:23:16,259 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-25 15:23:16,259 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-25 15:23:16,262 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-25 15:23:16,263 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 03:23:16" (1/1) ...
[2023-10-25 15:23:16,264 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3cd12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:16, skipping insertion in model container
[2023-10-25 15:23:16,271 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 03:23:16" (1/1) ...
[2023-10-25 15:23:16,276 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-25 15:23:16,349 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-25 15:23:16,610 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-10-25 15:23:16,928 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-25 15:23:16,936 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-25 15:23:16,963 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-10-25 15:23:17,017 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-25 15:23:17,106 INFO  L208         MainTranslator]: Completed translation
[2023-10-25 15:23:17,107 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17 WrapperNode
[2023-10-25 15:23:17,107 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-25 15:23:17,108 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-25 15:23:17,108 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-25 15:23:17,115 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-25 15:23:17,126 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,168 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,210 INFO  L138                Inliner]: procedures = 268, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92
[2023-10-25 15:23:17,220 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-25 15:23:17,232 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-25 15:23:17,232 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-25 15:23:17,233 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-25 15:23:17,240 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,241 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,244 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,247 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,255 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,285 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,287 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,288 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,298 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-25 15:23:17,299 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-25 15:23:17,299 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-25 15:23:17,299 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-25 15:23:17,300 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (1/1) ...
[2023-10-25 15:23:17,304 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-25 15:23:17,341 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-25 15:23:17,369 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)
[2023-10-25 15:23:17,429 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
[2023-10-25 15:23:17,442 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-10-25 15:23:17,442 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-25 15:23:17,442 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-10-25 15:23:17,442 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-25 15:23:17,443 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-25 15:23:17,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-25 15:23:17,444 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-25 15:23:17,444 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-25 15:23:17,446 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-25 15:23:17,698 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-25 15:23:17,704 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-25 15:23:18,227 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-25 15:23:18,235 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-25 15:23:18,237 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-10-25 15:23:18,238 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:23:18 BoogieIcfgContainer
[2023-10-25 15:23:18,241 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-25 15:23:18,243 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-25 15:23:18,250 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-25 15:23:18,253 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-25 15:23:18,253 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 03:23:16" (1/3) ...
[2023-10-25 15:23:18,254 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c43898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:23:18, skipping insertion in model container
[2023-10-25 15:23:18,254 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:23:17" (2/3) ...
[2023-10-25 15:23:18,254 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c43898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:23:18, skipping insertion in model container
[2023-10-25 15:23:18,254 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:23:18" (3/3) ...
[2023-10-25 15:23:18,255 INFO  L112   eAbstractionObserver]: Analyzing ICFG thread-join-binomial-race.i
[2023-10-25 15:23:18,261 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-25 15:23:18,281 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-25 15:23:18,281 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations.
[2023-10-25 15:23:18,281 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-25 15:23:18,455 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-10-25 15:23:18,509 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 185 places, 191 transitions, 396 flow
[2023-10-25 15:23:18,612 INFO  L130       PetriNetUnfolder]: 6/179 cut-off events.
[2023-10-25 15:23:18,623 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-25 15:23:18,631 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 185 conditions, 179 events. 6/179 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 192 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 84. Up to 4 conditions per place. 
[2023-10-25 15:23:18,640 INFO  L82        GeneralOperation]: Start removeDead. Operand has 185 places, 191 transitions, 396 flow
[2023-10-25 15:23:18,644 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 145 places, 147 transitions, 302 flow
[2023-10-25 15:23:18,665 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-25 15:23:18,677 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 147 transitions, 302 flow
[2023-10-25 15:23:18,683 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 147 transitions, 302 flow
[2023-10-25 15:23:18,684 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 145 places, 147 transitions, 302 flow
[2023-10-25 15:23:18,769 INFO  L130       PetriNetUnfolder]: 6/174 cut-off events.
[2023-10-25 15:23:18,769 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-25 15:23:18,771 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 180 conditions, 174 events. 6/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 191 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 84. Up to 4 conditions per place. 
[2023-10-25 15:23:18,773 INFO  L119        LiptonReduction]: Number of co-enabled transitions 2788
[2023-10-25 15:23:27,581 INFO  L134        LiptonReduction]: Checked pairs total: 13927
[2023-10-25 15:23:27,581 INFO  L136        LiptonReduction]: Total number of compositions: 146
[2023-10-25 15:23:27,622 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-25 15:23:27,630 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;@35d617b8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-25 15:23:27,630 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 19 error locations.
[2023-10-25 15:23:27,647 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2023-10-25 15:23:27,647 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-25 15:23:27,647 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:27,648 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2023-10-25 15:23:27,649 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] ===
[2023-10-25 15:23:27,659 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:27,659 INFO  L85        PathProgramCache]: Analyzing trace with hash 567, now seen corresponding path program 1 times
[2023-10-25 15:23:27,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:27,666 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370615546]
[2023-10-25 15:23:27,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:27,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:27,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:27,843 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:27,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:27,844 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370615546]
[2023-10-25 15:23:27,845 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370615546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:27,845 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:27,845 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-10-25 15:23:27,846 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539378911]
[2023-10-25 15:23:27,848 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:27,854 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-25 15:23:27,862 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:27,876 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-25 15:23:27,898 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-25 15:23:27,908 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 181 out of 337
[2023-10-25 15:23:27,911 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 104 flow. Second operand  has 2 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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)
[2023-10-25 15:23:27,915 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:27,915 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 337
[2023-10-25 15:23:27,916 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:28,228 INFO  L130       PetriNetUnfolder]: 8/126 cut-off events.
[2023-10-25 15:23:28,229 INFO  L131       PetriNetUnfolder]: For 6/8 co-relation queries the response was YES.
[2023-10-25 15:23:28,229 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 161 conditions, 126 events. 8/126 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 8 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 125. Up to 29 conditions per place. 
[2023-10-25 15:23:28,232 INFO  L137   encePairwiseOnDemand]: 328/337 looper letters, 8 selfloop transitions, 0 changer transitions 1/39 dead transitions.
[2023-10-25 15:23:28,232 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 104 flow
[2023-10-25 15:23:28,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-25 15:23:28,248 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-25 15:23:28,260 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 380 transitions.
[2023-10-25 15:23:28,269 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5637982195845698
[2023-10-25 15:23:28,271 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 380 transitions.
[2023-10-25 15:23:28,271 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 380 transitions.
[2023-10-25 15:23:28,274 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:28,276 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 380 transitions.
[2023-10-25 15:23:28,294 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 190.0) internal successors, (380), 2 states have internal predecessors, (380), 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)
[2023-10-25 15:23:28,301 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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)
[2023-10-25 15:23:28,302 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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)
[2023-10-25 15:23:28,304 INFO  L175             Difference]: Start difference. First operand has 51 places, 48 transitions, 104 flow. Second operand 2 states and 380 transitions.
[2023-10-25 15:23:28,305 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 104 flow
[2023-10-25 15:23:28,317 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:28,320 INFO  L231             Difference]: Finished difference. Result has 43 places, 38 transitions, 81 flow
[2023-10-25 15:23:28,321 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=81, PETRI_PLACES=43, PETRI_TRANSITIONS=38}
[2023-10-25 15:23:28,326 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, -8 predicate places.
[2023-10-25 15:23:28,326 INFO  L495      AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 81 flow
[2023-10-25 15:23:28,327 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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)
[2023-10-25 15:23:28,327 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:28,327 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:28,328 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-25 15:23:28,329 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] ===
[2023-10-25 15:23:28,331 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:28,331 INFO  L85        PathProgramCache]: Analyzing trace with hash -350454187, now seen corresponding path program 1 times
[2023-10-25 15:23:28,331 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:28,332 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764695399]
[2023-10-25 15:23:28,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:28,332 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:28,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:29,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:29,192 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:29,196 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764695399]
[2023-10-25 15:23:29,196 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764695399] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:29,196 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:29,196 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-10-25 15:23:29,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365069332]
[2023-10-25 15:23:29,197 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:29,198 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-10-25 15:23:29,198 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:29,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-10-25 15:23:29,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-10-25 15:23:29,656 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 145 out of 337
[2023-10-25 15:23:29,657 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 81 flow. Second operand  has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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)
[2023-10-25 15:23:29,657 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:29,658 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 337
[2023-10-25 15:23:29,658 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:29,877 INFO  L130       PetriNetUnfolder]: 77/323 cut-off events.
[2023-10-25 15:23:29,893 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-25 15:23:29,895 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 519 conditions, 323 events. 77/323 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1682 event pairs, 77 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 515. Up to 177 conditions per place. 
[2023-10-25 15:23:29,897 INFO  L137   encePairwiseOnDemand]: 326/337 looper letters, 20 selfloop transitions, 8 changer transitions 0/43 dead transitions.
[2023-10-25 15:23:29,897 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 147 flow
[2023-10-25 15:23:29,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-25 15:23:29,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-25 15:23:29,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 901 transitions.
[2023-10-25 15:23:29,900 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.4455984174085064
[2023-10-25 15:23:29,901 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 901 transitions.
[2023-10-25 15:23:29,901 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 901 transitions.
[2023-10-25 15:23:29,901 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:29,901 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 901 transitions.
[2023-10-25 15:23:29,903 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 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)
[2023-10-25 15:23:29,907 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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)
[2023-10-25 15:23:29,908 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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)
[2023-10-25 15:23:29,908 INFO  L175             Difference]: Start difference. First operand has 43 places, 38 transitions, 81 flow. Second operand 6 states and 901 transitions.
[2023-10-25 15:23:29,908 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 147 flow
[2023-10-25 15:23:29,908 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:29,909 INFO  L231             Difference]: Finished difference. Result has 48 places, 43 transitions, 137 flow
[2023-10-25 15:23:29,909 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=48, PETRI_TRANSITIONS=43}
[2023-10-25 15:23:29,910 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places.
[2023-10-25 15:23:29,910 INFO  L495      AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 137 flow
[2023-10-25 15:23:29,911 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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)
[2023-10-25 15:23:29,911 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:29,911 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:29,911 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-25 15:23:29,911 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] ===
[2023-10-25 15:23:29,912 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:29,912 INFO  L85        PathProgramCache]: Analyzing trace with hash 905724532, now seen corresponding path program 1 times
[2023-10-25 15:23:29,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:29,913 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003279980]
[2023-10-25 15:23:29,913 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:29,913 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:29,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:30,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:30,317 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:30,317 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003279980]
[2023-10-25 15:23:30,318 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003279980] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:30,318 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:30,318 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-10-25 15:23:30,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674415917]
[2023-10-25 15:23:30,319 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:30,319 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-10-25 15:23:30,320 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:30,322 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-10-25 15:23:30,322 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-10-25 15:23:30,805 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 168 out of 337
[2023-10-25 15:23:30,806 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 137 flow. Second operand  has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2023-10-25 15:23:30,806 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:30,806 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 337
[2023-10-25 15:23:30,806 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:31,208 INFO  L130       PetriNetUnfolder]: 18/116 cut-off events.
[2023-10-25 15:23:31,208 INFO  L131       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2023-10-25 15:23:31,209 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 226 conditions, 116 events. 18/116 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 417 event pairs, 8 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 218. Up to 28 conditions per place. 
[2023-10-25 15:23:31,209 INFO  L137   encePairwiseOnDemand]: 332/337 looper letters, 14 selfloop transitions, 4 changer transitions 8/50 dead transitions.
[2023-10-25 15:23:31,209 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 50 transitions, 197 flow
[2023-10-25 15:23:31,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-25 15:23:31,225 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-25 15:23:31,226 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1030 transitions.
[2023-10-25 15:23:31,227 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5093966369930761
[2023-10-25 15:23:31,227 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1030 transitions.
[2023-10-25 15:23:31,227 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1030 transitions.
[2023-10-25 15:23:31,227 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:31,227 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1030 transitions.
[2023-10-25 15:23:31,230 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 171.66666666666666) internal successors, (1030), 6 states have internal predecessors, (1030), 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)
[2023-10-25 15:23:31,232 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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)
[2023-10-25 15:23:31,233 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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)
[2023-10-25 15:23:31,233 INFO  L175             Difference]: Start difference. First operand has 48 places, 43 transitions, 137 flow. Second operand 6 states and 1030 transitions.
[2023-10-25 15:23:31,233 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 50 transitions, 197 flow
[2023-10-25 15:23:31,234 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 50 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:31,235 INFO  L231             Difference]: Finished difference. Result has 52 places, 38 transitions, 120 flow
[2023-10-25 15:23:31,235 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=52, PETRI_TRANSITIONS=38}
[2023-10-25 15:23:31,236 INFO  L288   CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places.
[2023-10-25 15:23:31,251 INFO  L495      AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 120 flow
[2023-10-25 15:23:31,252 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2023-10-25 15:23:31,252 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:31,252 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1]
[2023-10-25 15:23:31,253 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-25 15:23:31,253 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] ===
[2023-10-25 15:23:31,253 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:31,253 INFO  L85        PathProgramCache]: Analyzing trace with hash 1477162438, now seen corresponding path program 1 times
[2023-10-25 15:23:31,254 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:31,254 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794367840]
[2023-10-25 15:23:31,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:31,255 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:31,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-25 15:23:31,385 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-25 15:23:31,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-25 15:23:31,470 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-25 15:23:31,470 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-25 15:23:31,471 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining)
[2023-10-25 15:23:31,472 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining)
[2023-10-25 15:23:31,472 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining)
[2023-10-25 15:23:31,473 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining)
[2023-10-25 15:23:31,473 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining)
[2023-10-25 15:23:31,473 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining)
[2023-10-25 15:23:31,474 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining)
[2023-10-25 15:23:31,474 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining)
[2023-10-25 15:23:31,474 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining)
[2023-10-25 15:23:31,474 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining)
[2023-10-25 15:23:31,475 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining)
[2023-10-25 15:23:31,475 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining)
[2023-10-25 15:23:31,477 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining)
[2023-10-25 15:23:31,478 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining)
[2023-10-25 15:23:31,478 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining)
[2023-10-25 15:23:31,478 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining)
[2023-10-25 15:23:31,478 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining)
[2023-10-25 15:23:31,478 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining)
[2023-10-25 15:23:31,478 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining)
[2023-10-25 15:23:31,479 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-25 15:23:31,479 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-10-25 15:23:31,483 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-25 15:23:31,483 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-25 15:23:31,555 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-10-25 15:23:31,575 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 231 places, 243 transitions, 522 flow
[2023-10-25 15:23:31,680 INFO  L130       PetriNetUnfolder]: 34/593 cut-off events.
[2023-10-25 15:23:31,693 INFO  L131       PetriNetUnfolder]: For 20/22 co-relation queries the response was YES.
[2023-10-25 15:23:31,701 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 627 conditions, 593 events. 34/593 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2088 event pairs, 0 based on Foata normal form. 2/499 useless extension candidates. Maximal degree in co-relation 268. Up to 16 conditions per place. 
[2023-10-25 15:23:31,701 INFO  L82        GeneralOperation]: Start removeDead. Operand has 231 places, 243 transitions, 522 flow
[2023-10-25 15:23:31,703 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 201 places, 207 transitions, 438 flow
[2023-10-25 15:23:31,704 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-25 15:23:31,704 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 207 transitions, 438 flow
[2023-10-25 15:23:31,704 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 207 transitions, 438 flow
[2023-10-25 15:23:31,705 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 201 places, 207 transitions, 438 flow
[2023-10-25 15:23:31,811 INFO  L130       PetriNetUnfolder]: 34/593 cut-off events.
[2023-10-25 15:23:31,811 INFO  L131       PetriNetUnfolder]: For 20/20 co-relation queries the response was YES.
[2023-10-25 15:23:31,813 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 627 conditions, 593 events. 34/593 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2086 event pairs, 0 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 268. Up to 16 conditions per place. 
[2023-10-25 15:23:31,839 INFO  L119        LiptonReduction]: Number of co-enabled transitions 14222
[2023-10-25 15:23:37,624 INFO  L134        LiptonReduction]: Checked pairs total: 90933
[2023-10-25 15:23:37,624 INFO  L136        LiptonReduction]: Total number of compositions: 148
[2023-10-25 15:23:37,626 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-25 15:23:37,626 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;@35d617b8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-25 15:23:37,626 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2023-10-25 15:23:37,627 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2023-10-25 15:23:37,627 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-25 15:23:37,627 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:37,627 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2023-10-25 15:23:37,627 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:37,627 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:37,627 INFO  L85        PathProgramCache]: Analyzing trace with hash 968, now seen corresponding path program 1 times
[2023-10-25 15:23:37,627 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:37,627 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974892397]
[2023-10-25 15:23:37,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:37,628 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:37,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:37,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:37,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:37,647 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974892397]
[2023-10-25 15:23:37,647 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974892397] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:37,647 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:37,647 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-10-25 15:23:37,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358828725]
[2023-10-25 15:23:37,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:37,648 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-25 15:23:37,648 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:37,648 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-25 15:23:37,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-25 15:23:37,649 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 225 out of 391
[2023-10-25 15:23:37,654 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 97 transitions, 218 flow. Second operand  has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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)
[2023-10-25 15:23:37,654 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:37,654 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 391
[2023-10-25 15:23:37,654 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:38,269 INFO  L130       PetriNetUnfolder]: 980/2946 cut-off events.
[2023-10-25 15:23:38,269 INFO  L131       PetriNetUnfolder]: For 154/202 co-relation queries the response was YES.
[2023-10-25 15:23:38,272 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 2946 events. 980/2946 cut-off events. For 154/202 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 21467 event pairs, 758 based on Foata normal form. 0/2461 useless extension candidates. Maximal degree in co-relation 3594. Up to 1610 conditions per place. 
[2023-10-25 15:23:38,297 INFO  L137   encePairwiseOnDemand]: 386/391 looper letters, 34 selfloop transitions, 0 changer transitions 0/92 dead transitions.
[2023-10-25 15:23:38,297 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 276 flow
[2023-10-25 15:23:38,298 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-25 15:23:38,298 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-25 15:23:38,298 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 489 transitions.
[2023-10-25 15:23:38,299 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6253196930946292
[2023-10-25 15:23:38,299 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 489 transitions.
[2023-10-25 15:23:38,299 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 489 transitions.
[2023-10-25 15:23:38,299 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:38,299 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 489 transitions.
[2023-10-25 15:23:38,300 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 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)
[2023-10-25 15:23:38,301 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 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)
[2023-10-25 15:23:38,302 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 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)
[2023-10-25 15:23:38,302 INFO  L175             Difference]: Start difference. First operand has 97 places, 97 transitions, 218 flow. Second operand 2 states and 489 transitions.
[2023-10-25 15:23:38,302 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 276 flow
[2023-10-25 15:23:38,304 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:38,306 INFO  L231             Difference]: Finished difference. Result has 93 places, 92 transitions, 208 flow
[2023-10-25 15:23:38,306 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=208, PETRI_PLACES=93, PETRI_TRANSITIONS=92}
[2023-10-25 15:23:38,315 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, -4 predicate places.
[2023-10-25 15:23:38,315 INFO  L495      AbstractCegarLoop]: Abstraction has has 93 places, 92 transitions, 208 flow
[2023-10-25 15:23:38,316 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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)
[2023-10-25 15:23:38,316 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:38,316 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:38,316 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-25 15:23:38,316 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:38,316 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:38,317 INFO  L85        PathProgramCache]: Analyzing trace with hash -1080939081, now seen corresponding path program 1 times
[2023-10-25 15:23:38,318 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:38,318 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811253352]
[2023-10-25 15:23:38,318 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:38,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:38,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:38,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:38,587 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:38,589 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811253352]
[2023-10-25 15:23:38,589 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811253352] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:38,589 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:38,589 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-10-25 15:23:38,590 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057541153]
[2023-10-25 15:23:38,590 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:38,590 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-10-25 15:23:38,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:38,591 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-10-25 15:23:38,591 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-10-25 15:23:38,930 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 183 out of 391
[2023-10-25 15:23:38,931 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 208 flow. Second operand  has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 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)
[2023-10-25 15:23:38,931 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:38,932 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 391
[2023-10-25 15:23:38,932 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:40,630 INFO  L130       PetriNetUnfolder]: 5355/11139 cut-off events.
[2023-10-25 15:23:40,645 INFO  L131       PetriNetUnfolder]: For 286/364 co-relation queries the response was YES.
[2023-10-25 15:23:40,654 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19721 conditions, 11139 events. 5355/11139 cut-off events. For 286/364 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 83369 event pairs, 4603 based on Foata normal form. 0/9978 useless extension candidates. Maximal degree in co-relation 19716. Up to 8415 conditions per place. 
[2023-10-25 15:23:40,717 INFO  L137   encePairwiseOnDemand]: 378/391 looper letters, 54 selfloop transitions, 8 changer transitions 0/95 dead transitions.
[2023-10-25 15:23:40,733 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 338 flow
[2023-10-25 15:23:40,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-25 15:23:40,734 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-25 15:23:40,736 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions.
[2023-10-25 15:23:40,737 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.49658994032395565
[2023-10-25 15:23:40,737 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions.
[2023-10-25 15:23:40,737 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions.
[2023-10-25 15:23:40,737 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:40,738 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions.
[2023-10-25 15:23:40,740 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 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)
[2023-10-25 15:23:40,753 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 391.0) internal successors, (2737), 7 states have internal predecessors, (2737), 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)
[2023-10-25 15:23:40,754 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 391.0) internal successors, (2737), 7 states have internal predecessors, (2737), 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)
[2023-10-25 15:23:40,754 INFO  L175             Difference]: Start difference. First operand has 93 places, 92 transitions, 208 flow. Second operand 6 states and 1165 transitions.
[2023-10-25 15:23:40,755 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 338 flow
[2023-10-25 15:23:40,756 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 95 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:40,757 INFO  L231             Difference]: Finished difference. Result has 97 places, 95 transitions, 260 flow
[2023-10-25 15:23:40,758 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=97, PETRI_TRANSITIONS=95}
[2023-10-25 15:23:40,758 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, 0 predicate places.
[2023-10-25 15:23:40,770 INFO  L495      AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 260 flow
[2023-10-25 15:23:40,771 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 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)
[2023-10-25 15:23:40,771 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:40,771 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:40,771 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-25 15:23:40,771 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:40,771 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:40,772 INFO  L85        PathProgramCache]: Analyzing trace with hash 597553700, now seen corresponding path program 1 times
[2023-10-25 15:23:40,772 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:40,773 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008834609]
[2023-10-25 15:23:40,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:40,773 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:40,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:41,166 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:41,166 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:41,167 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008834609]
[2023-10-25 15:23:41,168 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008834609] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:41,168 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:41,168 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-10-25 15:23:41,168 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832782306]
[2023-10-25 15:23:41,168 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:41,168 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-10-25 15:23:41,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:41,169 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-10-25 15:23:41,169 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-10-25 15:23:41,885 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 212 out of 391
[2023-10-25 15:23:41,886 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 260 flow. Second operand  has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 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)
[2023-10-25 15:23:41,886 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:41,886 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 391
[2023-10-25 15:23:41,886 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:42,865 INFO  L130       PetriNetUnfolder]: 1969/4372 cut-off events.
[2023-10-25 15:23:42,865 INFO  L131       PetriNetUnfolder]: For 309/396 co-relation queries the response was YES.
[2023-10-25 15:23:42,881 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 7919 conditions, 4372 events. 1969/4372 cut-off events. For 309/396 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 29711 event pairs, 758 based on Foata normal form. 0/3858 useless extension candidates. Maximal degree in co-relation 7910. Up to 1609 conditions per place. 
[2023-10-25 15:23:42,914 INFO  L137   encePairwiseOnDemand]: 385/391 looper letters, 120 selfloop transitions, 5 changer transitions 4/178 dead transitions.
[2023-10-25 15:23:42,915 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 178 transitions, 702 flow
[2023-10-25 15:23:42,915 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-25 15:23:42,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-25 15:23:42,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1397 transitions.
[2023-10-25 15:23:42,918 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5954816709292413
[2023-10-25 15:23:42,918 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1397 transitions.
[2023-10-25 15:23:42,918 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1397 transitions.
[2023-10-25 15:23:42,919 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:42,921 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1397 transitions.
[2023-10-25 15:23:42,923 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 232.83333333333334) internal successors, (1397), 6 states have internal predecessors, (1397), 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)
[2023-10-25 15:23:42,934 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 391.0) internal successors, (2737), 7 states have internal predecessors, (2737), 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)
[2023-10-25 15:23:42,934 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 391.0) internal successors, (2737), 7 states have internal predecessors, (2737), 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)
[2023-10-25 15:23:42,934 INFO  L175             Difference]: Start difference. First operand has 97 places, 95 transitions, 260 flow. Second operand 6 states and 1397 transitions.
[2023-10-25 15:23:42,935 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 178 transitions, 702 flow
[2023-10-25 15:23:42,939 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 178 transitions, 702 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:42,940 INFO  L231             Difference]: Finished difference. Result has 101 places, 90 transitions, 245 flow
[2023-10-25 15:23:42,953 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=101, PETRI_TRANSITIONS=90}
[2023-10-25 15:23:42,955 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, 4 predicate places.
[2023-10-25 15:23:42,955 INFO  L495      AbstractCegarLoop]: Abstraction has has 101 places, 90 transitions, 245 flow
[2023-10-25 15:23:42,956 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 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)
[2023-10-25 15:23:42,956 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:42,956 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:42,956 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-10-25 15:23:42,956 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:42,957 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:42,957 INFO  L85        PathProgramCache]: Analyzing trace with hash 419820616, now seen corresponding path program 1 times
[2023-10-25 15:23:42,957 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:42,957 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584589262]
[2023-10-25 15:23:42,957 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:42,958 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:42,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:42,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:42,994 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:42,995 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584589262]
[2023-10-25 15:23:42,995 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584589262] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:42,995 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:42,996 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-25 15:23:42,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893036254]
[2023-10-25 15:23:42,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:42,997 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-25 15:23:43,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:43,010 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-25 15:23:43,011 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-25 15:23:43,023 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 218 out of 391
[2023-10-25 15:23:43,023 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 90 transitions, 245 flow. Second operand  has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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)
[2023-10-25 15:23:43,023 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:43,024 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 391
[2023-10-25 15:23:43,024 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:43,610 INFO  L130       PetriNetUnfolder]: 1257/3440 cut-off events.
[2023-10-25 15:23:43,610 INFO  L131       PetriNetUnfolder]: For 324/391 co-relation queries the response was YES.
[2023-10-25 15:23:43,614 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 6012 conditions, 3440 events. 1257/3440 cut-off events. For 324/391 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 25152 event pairs, 769 based on Foata normal form. 0/2918 useless extension candidates. Maximal degree in co-relation 6002. Up to 1707 conditions per place. 
[2023-10-25 15:23:43,634 INFO  L137   encePairwiseOnDemand]: 385/391 looper letters, 54 selfloop transitions, 5 changer transitions 0/112 dead transitions.
[2023-10-25 15:23:43,635 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 419 flow
[2023-10-25 15:23:43,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-25 15:23:43,635 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-25 15:23:43,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions.
[2023-10-25 15:23:43,637 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6078431372549019
[2023-10-25 15:23:43,637 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 713 transitions.
[2023-10-25 15:23:43,637 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 713 transitions.
[2023-10-25 15:23:43,637 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:43,637 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 713 transitions.
[2023-10-25 15:23:43,638 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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)
[2023-10-25 15:23:43,640 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:43,640 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:43,641 INFO  L175             Difference]: Start difference. First operand has 101 places, 90 transitions, 245 flow. Second operand 3 states and 713 transitions.
[2023-10-25 15:23:43,641 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 419 flow
[2023-10-25 15:23:43,643 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 112 transitions, 403 flow, removed 3 selfloop flow, removed 5 redundant places.
[2023-10-25 15:23:43,646 INFO  L231             Difference]: Finished difference. Result has 100 places, 94 transitions, 267 flow
[2023-10-25 15:23:43,646 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=100, PETRI_TRANSITIONS=94}
[2023-10-25 15:23:43,647 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, 3 predicate places.
[2023-10-25 15:23:43,647 INFO  L495      AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 267 flow
[2023-10-25 15:23:43,647 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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)
[2023-10-25 15:23:43,661 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:43,661 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:43,661 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-10-25 15:23:43,662 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:43,662 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:43,662 INFO  L85        PathProgramCache]: Analyzing trace with hash -63257529, now seen corresponding path program 1 times
[2023-10-25 15:23:43,662 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:43,662 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565878877]
[2023-10-25 15:23:43,662 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:43,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:43,675 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-10-25 15:23:43,676 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237811049]
[2023-10-25 15:23:43,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:43,676 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-25 15:23:43,676 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-25 15:23:43,705 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)
[2023-10-25 15:23:43,740 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
[2023-10-25 15:23:43,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:43,921 INFO  L263         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-10-25 15:23:43,923 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-25 15:23:43,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:43,971 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-10-25 15:23:43,971 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:43,971 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565878877]
[2023-10-25 15:23:43,972 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-10-25 15:23:43,972 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237811049]
[2023-10-25 15:23:43,972 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237811049] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:43,972 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:43,972 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-25 15:23:43,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799130037]
[2023-10-25 15:23:43,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:43,973 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-25 15:23:43,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:43,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-25 15:23:43,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-25 15:23:44,010 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 206 out of 391
[2023-10-25 15:23:44,010 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 267 flow. Second operand  has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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)
[2023-10-25 15:23:44,016 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:44,016 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 391
[2023-10-25 15:23:44,016 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:44,731 INFO  L130       PetriNetUnfolder]: 1323/3542 cut-off events.
[2023-10-25 15:23:44,743 INFO  L131       PetriNetUnfolder]: For 731/898 co-relation queries the response was YES.
[2023-10-25 15:23:44,747 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 6568 conditions, 3542 events. 1323/3542 cut-off events. For 731/898 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 25643 event pairs, 987 based on Foata normal form. 55/3039 useless extension candidates. Maximal degree in co-relation 6557. Up to 2152 conditions per place. 
[2023-10-25 15:23:44,754 INFO  L137   encePairwiseOnDemand]: 388/391 looper letters, 40 selfloop transitions, 1 changer transitions 0/92 dead transitions.
[2023-10-25 15:23:44,754 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 345 flow
[2023-10-25 15:23:44,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-25 15:23:44,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-25 15:23:44,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions.
[2023-10-25 15:23:44,770 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5592497868712702
[2023-10-25 15:23:44,770 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 656 transitions.
[2023-10-25 15:23:44,770 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 656 transitions.
[2023-10-25 15:23:44,770 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:44,770 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 656 transitions.
[2023-10-25 15:23:44,771 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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)
[2023-10-25 15:23:44,773 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:44,773 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:44,773 INFO  L175             Difference]: Start difference. First operand has 100 places, 94 transitions, 267 flow. Second operand 3 states and 656 transitions.
[2023-10-25 15:23:44,774 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 345 flow
[2023-10-25 15:23:44,776 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 92 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-10-25 15:23:44,779 INFO  L231             Difference]: Finished difference. Result has 98 places, 92 transitions, 255 flow
[2023-10-25 15:23:44,779 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=98, PETRI_TRANSITIONS=92}
[2023-10-25 15:23:44,781 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places.
[2023-10-25 15:23:44,781 INFO  L495      AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 255 flow
[2023-10-25 15:23:44,782 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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)
[2023-10-25 15:23:44,782 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:44,782 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:44,794 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
[2023-10-25 15:23:44,986 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-25 15:23:44,987 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:44,987 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:44,988 INFO  L85        PathProgramCache]: Analyzing trace with hash -903058524, now seen corresponding path program 1 times
[2023-10-25 15:23:44,988 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:44,988 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359042146]
[2023-10-25 15:23:44,988 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:44,988 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:45,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:45,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-10-25 15:23:45,057 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:45,057 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359042146]
[2023-10-25 15:23:45,057 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359042146] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:45,058 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:45,058 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-25 15:23:45,058 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015223924]
[2023-10-25 15:23:45,058 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:45,059 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-25 15:23:45,059 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:45,059 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-25 15:23:45,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-25 15:23:45,070 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 218 out of 391
[2023-10-25 15:23:45,074 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 255 flow. Second operand  has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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)
[2023-10-25 15:23:45,074 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:45,074 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 391
[2023-10-25 15:23:45,074 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:45,677 INFO  L130       PetriNetUnfolder]: 1367/3769 cut-off events.
[2023-10-25 15:23:45,693 INFO  L131       PetriNetUnfolder]: For 541/642 co-relation queries the response was YES.
[2023-10-25 15:23:45,698 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 6800 conditions, 3769 events. 1367/3769 cut-off events. For 541/642 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 28435 event pairs, 804 based on Foata normal form. 6/3293 useless extension candidates. Maximal degree in co-relation 6789. Up to 1870 conditions per place. 
[2023-10-25 15:23:45,705 INFO  L137   encePairwiseOnDemand]: 385/391 looper letters, 58 selfloop transitions, 6 changer transitions 0/115 dead transitions.
[2023-10-25 15:23:45,705 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 115 transitions, 448 flow
[2023-10-25 15:23:45,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-25 15:23:45,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-25 15:23:45,707 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions.
[2023-10-25 15:23:45,707 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6069906223358909
[2023-10-25 15:23:45,707 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 712 transitions.
[2023-10-25 15:23:45,708 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions.
[2023-10-25 15:23:45,708 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:45,721 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions.
[2023-10-25 15:23:45,722 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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)
[2023-10-25 15:23:45,724 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:45,724 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:45,724 INFO  L175             Difference]: Start difference. First operand has 98 places, 92 transitions, 255 flow. Second operand 3 states and 712 transitions.
[2023-10-25 15:23:45,725 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 115 transitions, 448 flow
[2023-10-25 15:23:45,726 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 115 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-10-25 15:23:45,727 INFO  L231             Difference]: Finished difference. Result has 101 places, 96 transitions, 300 flow
[2023-10-25 15:23:45,727 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=101, PETRI_TRANSITIONS=96}
[2023-10-25 15:23:45,728 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, 4 predicate places.
[2023-10-25 15:23:45,728 INFO  L495      AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 300 flow
[2023-10-25 15:23:45,729 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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)
[2023-10-25 15:23:45,729 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:45,729 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:45,729 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-10-25 15:23:45,729 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:45,729 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:45,730 INFO  L85        PathProgramCache]: Analyzing trace with hash -284586499, now seen corresponding path program 1 times
[2023-10-25 15:23:45,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:45,730 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835696206]
[2023-10-25 15:23:45,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:45,730 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:45,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:45,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:45,899 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:45,899 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835696206]
[2023-10-25 15:23:45,900 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835696206] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:45,901 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:45,901 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-10-25 15:23:45,901 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357320609]
[2023-10-25 15:23:45,901 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:45,901 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-25 15:23:45,901 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:45,902 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-25 15:23:45,902 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-25 15:23:45,914 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 220 out of 391
[2023-10-25 15:23:45,914 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 300 flow. Second operand  has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 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)
[2023-10-25 15:23:45,915 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:45,915 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 391
[2023-10-25 15:23:45,915 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:46,519 INFO  L130       PetriNetUnfolder]: 842/2819 cut-off events.
[2023-10-25 15:23:46,519 INFO  L131       PetriNetUnfolder]: For 501/752 co-relation queries the response was YES.
[2023-10-25 15:23:46,523 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 5029 conditions, 2819 events. 842/2819 cut-off events. For 501/752 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 20946 event pairs, 327 based on Foata normal form. 54/2514 useless extension candidates. Maximal degree in co-relation 5017. Up to 756 conditions per place. 
[2023-10-25 15:23:46,538 INFO  L137   encePairwiseOnDemand]: 387/391 looper letters, 56 selfloop transitions, 6 changer transitions 0/115 dead transitions.
[2023-10-25 15:23:46,538 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 115 transitions, 469 flow
[2023-10-25 15:23:46,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-25 15:23:46,539 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-25 15:23:46,540 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions.
[2023-10-25 15:23:46,540 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6112531969309463
[2023-10-25 15:23:46,540 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 717 transitions.
[2023-10-25 15:23:46,540 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions.
[2023-10-25 15:23:46,541 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:46,541 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions.
[2023-10-25 15:23:46,542 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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)
[2023-10-25 15:23:46,543 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:46,544 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 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)
[2023-10-25 15:23:46,544 INFO  L175             Difference]: Start difference. First operand has 101 places, 96 transitions, 300 flow. Second operand 3 states and 717 transitions.
[2023-10-25 15:23:46,557 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 115 transitions, 469 flow
[2023-10-25 15:23:46,560 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 115 transitions, 459 flow, removed 1 selfloop flow, removed 2 redundant places.
[2023-10-25 15:23:46,561 INFO  L231             Difference]: Finished difference. Result has 101 places, 94 transitions, 286 flow
[2023-10-25 15:23:46,562 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=101, PETRI_TRANSITIONS=94}
[2023-10-25 15:23:46,562 INFO  L288   CegarLoopForPetriNet]: 97 programPoint places, 4 predicate places.
[2023-10-25 15:23:46,562 INFO  L495      AbstractCegarLoop]: Abstraction has has 101 places, 94 transitions, 286 flow
[2023-10-25 15:23:46,563 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 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)
[2023-10-25 15:23:46,563 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:46,563 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1]
[2023-10-25 15:23:46,563 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-10-25 15:23:46,563 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] ===
[2023-10-25 15:23:46,563 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:46,564 INFO  L85        PathProgramCache]: Analyzing trace with hash 966542179, now seen corresponding path program 1 times
[2023-10-25 15:23:46,564 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:46,564 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660797049]
[2023-10-25 15:23:46,564 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:46,564 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:46,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-25 15:23:46,612 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-25 15:23:46,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-25 15:23:46,667 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-25 15:23:46,668 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-25 15:23:46,668 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining)
[2023-10-25 15:23:46,668 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining)
[2023-10-25 15:23:46,669 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining)
[2023-10-25 15:23:46,669 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining)
[2023-10-25 15:23:46,669 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining)
[2023-10-25 15:23:46,671 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining)
[2023-10-25 15:23:46,671 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining)
[2023-10-25 15:23:46,671 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining)
[2023-10-25 15:23:46,671 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining)
[2023-10-25 15:23:46,671 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining)
[2023-10-25 15:23:46,672 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining)
[2023-10-25 15:23:46,672 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining)
[2023-10-25 15:23:46,672 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining)
[2023-10-25 15:23:46,672 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining)
[2023-10-25 15:23:46,672 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining)
[2023-10-25 15:23:46,672 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining)
[2023-10-25 15:23:46,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining)
[2023-10-25 15:23:46,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining)
[2023-10-25 15:23:46,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining)
[2023-10-25 15:23:46,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining)
[2023-10-25 15:23:46,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining)
[2023-10-25 15:23:46,673 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining)
[2023-10-25 15:23:46,674 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining)
[2023-10-25 15:23:46,674 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-10-25 15:23:46,674 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:46,675 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-25 15:23:46,676 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-25 15:23:46,852 INFO  L144    ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions.
[2023-10-25 15:23:46,854 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 277 places, 297 transitions, 660 flow
[2023-10-25 15:23:47,141 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1260] threadEXIT-->L1028-13: Formula: (= (let ((.cse0 (mod |v_threadThread3of3ForFork0_#t~mem8_8| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_threadThread1of3ForFork0_thidvar0_8)  InVars {threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  OutVars{threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  AuxVars[]  AssignedVars[][99], [threadThread1of3ForFork0NotInUse, 34#$Ultimate##0true, 27#L1028-13true, 156#L1037-10true, threadThread2of3ForFork0InUse, threadThread3of3ForFork0InUse])
[2023-10-25 15:23:47,142 INFO  L383   tUnfolder$Statistics]: this new event has 257 ancestors and is cut-off event
[2023-10-25 15:23:47,142 INFO  L386   tUnfolder$Statistics]:   existing Event has 200 ancestors and is cut-off event
[2023-10-25 15:23:47,142 INFO  L386   tUnfolder$Statistics]:   existing Event has 200 ancestors and is cut-off event
[2023-10-25 15:23:47,142 INFO  L386   tUnfolder$Statistics]:   existing Event has 143 ancestors and is cut-off event
[2023-10-25 15:23:47,191 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1260] threadEXIT-->L1028-13: Formula: (= (let ((.cse0 (mod |v_threadThread3of3ForFork0_#t~mem8_8| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_threadThread1of3ForFork0_thidvar0_8)  InVars {threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  OutVars{threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  AuxVars[]  AssignedVars[][99], [34#$Ultimate##0true, threadThread1of3ForFork0NotInUse, 27#L1028-13true, threadThread2of3ForFork0InUse, threadThread3of3ForFork0InUse, 191#ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCEStrue])
[2023-10-25 15:23:47,192 INFO  L383   tUnfolder$Statistics]: this new event has 274 ancestors and is cut-off event
[2023-10-25 15:23:47,192 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,192 INFO  L386   tUnfolder$Statistics]:   existing Event has 160 ancestors and is cut-off event
[2023-10-25 15:23:47,192 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,192 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1268] threadEXIT-->L1028-13: Formula: (= (let ((.cse0 (mod |v_threadThread1of3ForFork0_#t~mem8_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_threadThread3of3ForFork0_thidvar0_12)  InVars {threadThread3of3ForFork0_thidvar0=v_threadThread3of3ForFork0_thidvar0_12, threadThread1of3ForFork0_#t~mem8=|v_threadThread1of3ForFork0_#t~mem8_12|}  OutVars{threadThread3of3ForFork0_thidvar0=v_threadThread3of3ForFork0_thidvar0_12, threadThread1of3ForFork0_#t~mem8=|v_threadThread1of3ForFork0_#t~mem8_12|}  AuxVars[]  AssignedVars[][6], [34#$Ultimate##0true, threadThread1of3ForFork0InUse, threadThread2of3ForFork0InUse, threadThread3of3ForFork0NotInUse, 233#L1028-13true, 191#ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCEStrue])
[2023-10-25 15:23:47,193 INFO  L383   tUnfolder$Statistics]: this new event has 274 ancestors and is cut-off event
[2023-10-25 15:23:47,193 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,193 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,193 INFO  L386   tUnfolder$Statistics]:   existing Event has 160 ancestors and is cut-off event
[2023-10-25 15:23:47,217 INFO  L130       PetriNetUnfolder]: 194/1950 cut-off events.
[2023-10-25 15:23:47,218 INFO  L131       PetriNetUnfolder]: For 164/180 co-relation queries the response was YES.
[2023-10-25 15:23:47,226 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2142 conditions, 1950 events. 194/1950 cut-off events. For 164/180 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 12045 event pairs, 4 based on Foata normal form. 16/1635 useless extension candidates. Maximal degree in co-relation 937. Up to 52 conditions per place. 
[2023-10-25 15:23:47,226 INFO  L82        GeneralOperation]: Start removeDead. Operand has 277 places, 297 transitions, 660 flow
[2023-10-25 15:23:47,247 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 247 places, 259 transitions, 566 flow
[2023-10-25 15:23:47,261 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-25 15:23:47,261 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 259 transitions, 566 flow
[2023-10-25 15:23:47,262 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 259 transitions, 566 flow
[2023-10-25 15:23:47,262 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 247 places, 259 transitions, 566 flow
[2023-10-25 15:23:47,570 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1260] threadEXIT-->L1028-13: Formula: (= (let ((.cse0 (mod |v_threadThread3of3ForFork0_#t~mem8_8| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_threadThread1of3ForFork0_thidvar0_8)  InVars {threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  OutVars{threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  AuxVars[]  AssignedVars[][85], [threadThread1of3ForFork0NotInUse, 34#$Ultimate##0true, 27#L1028-13true, 156#L1037-10true, threadThread2of3ForFork0InUse, threadThread3of3ForFork0InUse])
[2023-10-25 15:23:47,576 INFO  L383   tUnfolder$Statistics]: this new event has 257 ancestors and is cut-off event
[2023-10-25 15:23:47,576 INFO  L386   tUnfolder$Statistics]:   existing Event has 200 ancestors and is cut-off event
[2023-10-25 15:23:47,576 INFO  L386   tUnfolder$Statistics]:   existing Event has 200 ancestors and is cut-off event
[2023-10-25 15:23:47,576 INFO  L386   tUnfolder$Statistics]:   existing Event has 143 ancestors and is cut-off event
[2023-10-25 15:23:47,619 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1260] threadEXIT-->L1028-13: Formula: (= (let ((.cse0 (mod |v_threadThread3of3ForFork0_#t~mem8_8| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_threadThread1of3ForFork0_thidvar0_8)  InVars {threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  OutVars{threadThread1of3ForFork0_thidvar0=v_threadThread1of3ForFork0_thidvar0_8, threadThread3of3ForFork0_#t~mem8=|v_threadThread3of3ForFork0_#t~mem8_8|}  AuxVars[]  AssignedVars[][85], [34#$Ultimate##0true, threadThread1of3ForFork0NotInUse, 27#L1028-13true, threadThread2of3ForFork0InUse, threadThread3of3ForFork0InUse, 191#ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCEStrue])
[2023-10-25 15:23:47,619 INFO  L383   tUnfolder$Statistics]: this new event has 274 ancestors and is cut-off event
[2023-10-25 15:23:47,619 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,619 INFO  L386   tUnfolder$Statistics]:   existing Event has 160 ancestors and is cut-off event
[2023-10-25 15:23:47,619 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,619 INFO  L381   tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1268] threadEXIT-->L1028-13: Formula: (= (let ((.cse0 (mod |v_threadThread1of3ForFork0_#t~mem8_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_threadThread3of3ForFork0_thidvar0_12)  InVars {threadThread3of3ForFork0_thidvar0=v_threadThread3of3ForFork0_thidvar0_12, threadThread1of3ForFork0_#t~mem8=|v_threadThread1of3ForFork0_#t~mem8_12|}  OutVars{threadThread3of3ForFork0_thidvar0=v_threadThread3of3ForFork0_thidvar0_12, threadThread1of3ForFork0_#t~mem8=|v_threadThread1of3ForFork0_#t~mem8_12|}  AuxVars[]  AssignedVars[][3], [34#$Ultimate##0true, threadThread1of3ForFork0InUse, threadThread2of3ForFork0InUse, threadThread3of3ForFork0NotInUse, 233#L1028-13true, 191#ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCEStrue])
[2023-10-25 15:23:47,620 INFO  L383   tUnfolder$Statistics]: this new event has 274 ancestors and is cut-off event
[2023-10-25 15:23:47,620 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,620 INFO  L386   tUnfolder$Statistics]:   existing Event has 217 ancestors and is cut-off event
[2023-10-25 15:23:47,620 INFO  L386   tUnfolder$Statistics]:   existing Event has 160 ancestors and is cut-off event
[2023-10-25 15:23:47,642 INFO  L130       PetriNetUnfolder]: 194/1950 cut-off events.
[2023-10-25 15:23:47,642 INFO  L131       PetriNetUnfolder]: For 164/164 co-relation queries the response was YES.
[2023-10-25 15:23:47,649 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2142 conditions, 1950 events. 194/1950 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 12056 event pairs, 4 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 937. Up to 52 conditions per place. 
[2023-10-25 15:23:47,726 INFO  L119        LiptonReduction]: Number of co-enabled transitions 29334
[2023-10-25 15:23:53,867 INFO  L134        LiptonReduction]: Checked pairs total: 198761
[2023-10-25 15:23:53,868 INFO  L136        LiptonReduction]: Total number of compositions: 170
[2023-10-25 15:23:53,869 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-25 15:23:53,870 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;@35d617b8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-25 15:23:53,870 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 27 error locations.
[2023-10-25 15:23:53,871 INFO  L130       PetriNetUnfolder]: 0/0 cut-off events.
[2023-10-25 15:23:53,871 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-25 15:23:53,871 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:53,871 INFO  L209   CegarLoopForPetriNet]: trace histogram [1]
[2023-10-25 15:23:53,871 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] ===
[2023-10-25 15:23:53,871 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:53,871 INFO  L85        PathProgramCache]: Analyzing trace with hash 1455, now seen corresponding path program 1 times
[2023-10-25 15:23:53,876 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:53,876 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306767493]
[2023-10-25 15:23:53,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:53,877 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:53,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:53,881 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:53,881 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:53,881 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306767493]
[2023-10-25 15:23:53,881 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306767493] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:53,881 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:53,881 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-10-25 15:23:53,881 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413383396]
[2023-10-25 15:23:53,882 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:53,882 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-25 15:23:53,882 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:53,882 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-25 15:23:53,882 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-25 15:23:53,883 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 269 out of 467
[2023-10-25 15:23:53,883 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 312 flow. Second operand  has 2 states, 2 states have (on average 269.5) internal successors, (539), 2 states have internal predecessors, (539), 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)
[2023-10-25 15:23:53,897 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:53,897 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 467
[2023-10-25 15:23:53,897 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:23:58,481 INFO  L130       PetriNetUnfolder]: 18642/41700 cut-off events.
[2023-10-25 15:23:58,481 INFO  L131       PetriNetUnfolder]: For 3712/5967 co-relation queries the response was YES.
[2023-10-25 15:23:58,550 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 69475 conditions, 41700 events. 18642/41700 cut-off events. For 3712/5967 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 417629 event pairs, 14355 based on Foata normal form. 0/34681 useless extension candidates. Maximal degree in co-relation 58147. Up to 26197 conditions per place. 
[2023-10-25 15:23:58,844 INFO  L137   encePairwiseOnDemand]: 462/467 looper letters, 50 selfloop transitions, 0 changer transitions 0/127 dead transitions.
[2023-10-25 15:23:58,844 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 127 transitions, 402 flow
[2023-10-25 15:23:58,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-25 15:23:58,844 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-25 15:23:58,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 593 transitions.
[2023-10-25 15:23:58,846 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6349036402569593
[2023-10-25 15:23:58,855 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 593 transitions.
[2023-10-25 15:23:58,855 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 593 transitions.
[2023-10-25 15:23:58,856 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:23:58,856 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 593 transitions.
[2023-10-25 15:23:58,858 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 296.5) internal successors, (593), 2 states have internal predecessors, (593), 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)
[2023-10-25 15:23:58,859 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 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)
[2023-10-25 15:23:58,861 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 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)
[2023-10-25 15:23:58,861 INFO  L175             Difference]: Start difference. First operand has 128 places, 132 transitions, 312 flow. Second operand 2 states and 593 transitions.
[2023-10-25 15:23:58,861 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 127 transitions, 402 flow
[2023-10-25 15:23:58,866 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 127 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:23:58,868 INFO  L231             Difference]: Finished difference. Result has 124 places, 127 transitions, 302 flow
[2023-10-25 15:23:58,881 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=302, PETRI_PLACES=124, PETRI_TRANSITIONS=127}
[2023-10-25 15:23:58,882 INFO  L288   CegarLoopForPetriNet]: 128 programPoint places, -4 predicate places.
[2023-10-25 15:23:58,882 INFO  L495      AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 302 flow
[2023-10-25 15:23:58,883 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 269.5) internal successors, (539), 2 states have internal predecessors, (539), 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)
[2023-10-25 15:23:58,883 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:23:58,883 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-10-25 15:23:58,883 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-10-25 15:23:58,883 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] ===
[2023-10-25 15:23:58,883 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:23:58,883 INFO  L85        PathProgramCache]: Analyzing trace with hash 394491682, now seen corresponding path program 1 times
[2023-10-25 15:23:58,884 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:23:58,884 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969928434]
[2023-10-25 15:23:58,884 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:23:58,884 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:23:58,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:23:59,267 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:23:59,267 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:23:59,267 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969928434]
[2023-10-25 15:23:59,267 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969928434] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:23:59,267 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:23:59,267 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-10-25 15:23:59,268 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496637236]
[2023-10-25 15:23:59,268 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:23:59,268 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-10-25 15:23:59,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:23:59,268 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-10-25 15:23:59,269 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-10-25 15:23:59,941 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 221 out of 467
[2023-10-25 15:23:59,942 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 302 flow. Second operand  has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 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)
[2023-10-25 15:23:59,942 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:23:59,942 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 467
[2023-10-25 15:23:59,942 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:24:25,666 INFO  L130       PetriNetUnfolder]: 137604/235791 cut-off events.
[2023-10-25 15:24:25,667 INFO  L131       PetriNetUnfolder]: For 8827/10783 co-relation queries the response was YES.
[2023-10-25 15:24:26,173 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 429232 conditions, 235791 events. 137604/235791 cut-off events. For 8827/10783 co-relation queries the response was YES. Maximal size of possible extension queue 3696. Compared 2229156 event pairs, 117782 based on Foata normal form. 0/209921 useless extension candidates. Maximal degree in co-relation 429226. Up to 189146 conditions per place. 
[2023-10-25 15:24:27,951 INFO  L137   encePairwiseOnDemand]: 453/467 looper letters, 75 selfloop transitions, 8 changer transitions 0/129 dead transitions.
[2023-10-25 15:24:27,951 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 129 transitions, 472 flow
[2023-10-25 15:24:27,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-25 15:24:27,952 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-25 15:24:27,961 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1415 transitions.
[2023-10-25 15:24:27,974 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5049964311206281
[2023-10-25 15:24:27,975 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1415 transitions.
[2023-10-25 15:24:27,975 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1415 transitions.
[2023-10-25 15:24:27,975 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:24:27,975 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1415 transitions.
[2023-10-25 15:24:27,978 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 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)
[2023-10-25 15:24:27,990 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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)
[2023-10-25 15:24:27,991 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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)
[2023-10-25 15:24:27,992 INFO  L175             Difference]: Start difference. First operand has 124 places, 127 transitions, 302 flow. Second operand 6 states and 1415 transitions.
[2023-10-25 15:24:27,992 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 129 transitions, 472 flow
[2023-10-25 15:24:28,004 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 129 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:24:28,018 INFO  L231             Difference]: Finished difference. Result has 127 places, 129 transitions, 352 flow
[2023-10-25 15:24:28,019 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=127, PETRI_TRANSITIONS=129}
[2023-10-25 15:24:28,020 INFO  L288   CegarLoopForPetriNet]: 128 programPoint places, -1 predicate places.
[2023-10-25 15:24:28,020 INFO  L495      AbstractCegarLoop]: Abstraction has has 127 places, 129 transitions, 352 flow
[2023-10-25 15:24:28,020 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 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)
[2023-10-25 15:24:28,020 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:24:28,020 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:24:28,021 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-10-25 15:24:28,021 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] ===
[2023-10-25 15:24:28,021 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:24:28,021 INFO  L85        PathProgramCache]: Analyzing trace with hash 2033105086, now seen corresponding path program 1 times
[2023-10-25 15:24:28,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:24:28,021 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565995223]
[2023-10-25 15:24:28,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:24:28,022 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:24:28,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:24:28,296 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:24:28,297 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:24:28,297 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565995223]
[2023-10-25 15:24:28,297 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565995223] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:24:28,297 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:24:28,297 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-10-25 15:24:28,314 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812782319]
[2023-10-25 15:24:28,315 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:24:28,315 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-10-25 15:24:28,315 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:24:28,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-10-25 15:24:28,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-10-25 15:24:29,071 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 256 out of 467
[2023-10-25 15:24:29,073 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 129 transitions, 352 flow. Second operand  has 6 states, 6 states have (on average 257.3333333333333) internal successors, (1544), 6 states have internal predecessors, (1544), 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)
[2023-10-25 15:24:29,073 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:24:29,073 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 467
[2023-10-25 15:24:29,073 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:24:34,739 INFO  L130       PetriNetUnfolder]: 35492/63537 cut-off events.
[2023-10-25 15:24:34,739 INFO  L131       PetriNetUnfolder]: For 6202/10100 co-relation queries the response was YES.
[2023-10-25 15:24:34,890 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 117244 conditions, 63537 events. 35492/63537 cut-off events. For 6202/10100 co-relation queries the response was YES. Maximal size of possible extension queue 1080. Compared 550057 event pairs, 14355 based on Foata normal form. 0/54885 useless extension candidates. Maximal degree in co-relation 117234. Up to 26166 conditions per place. 
[2023-10-25 15:24:35,126 INFO  L137   encePairwiseOnDemand]: 461/467 looper letters, 192 selfloop transitions, 5 changer transitions 4/268 dead transitions.
[2023-10-25 15:24:35,126 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 268 transitions, 1098 flow
[2023-10-25 15:24:35,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-10-25 15:24:35,127 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-10-25 15:24:35,132 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1733 transitions.
[2023-10-25 15:24:35,133 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6184867951463241
[2023-10-25 15:24:35,134 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1733 transitions.
[2023-10-25 15:24:35,134 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1733 transitions.
[2023-10-25 15:24:35,134 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:24:35,135 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1733 transitions.
[2023-10-25 15:24:35,143 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 288.8333333333333) internal successors, (1733), 6 states have internal predecessors, (1733), 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)
[2023-10-25 15:24:35,166 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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)
[2023-10-25 15:24:35,167 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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)
[2023-10-25 15:24:35,167 INFO  L175             Difference]: Start difference. First operand has 127 places, 129 transitions, 352 flow. Second operand 6 states and 1733 transitions.
[2023-10-25 15:24:35,167 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 268 transitions, 1098 flow
[2023-10-25 15:24:35,176 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 268 transitions, 1098 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-25 15:24:35,192 INFO  L231             Difference]: Finished difference. Result has 131 places, 124 transitions, 337 flow
[2023-10-25 15:24:35,192 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=337, PETRI_PLACES=131, PETRI_TRANSITIONS=124}
[2023-10-25 15:24:35,194 INFO  L288   CegarLoopForPetriNet]: 128 programPoint places, 3 predicate places.
[2023-10-25 15:24:35,194 INFO  L495      AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 337 flow
[2023-10-25 15:24:35,194 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 257.3333333333333) internal successors, (1544), 6 states have internal predecessors, (1544), 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)
[2023-10-25 15:24:35,194 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:24:35,194 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:24:35,194 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-10-25 15:24:35,195 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] ===
[2023-10-25 15:24:35,195 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:24:35,195 INFO  L85        PathProgramCache]: Analyzing trace with hash -328208307, now seen corresponding path program 1 times
[2023-10-25 15:24:35,195 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:24:35,195 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184166519]
[2023-10-25 15:24:35,196 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:24:35,196 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:24:35,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:24:35,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:24:35,245 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:24:35,246 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184166519]
[2023-10-25 15:24:35,246 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184166519] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:24:35,246 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:24:35,246 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-25 15:24:35,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274287246]
[2023-10-25 15:24:35,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:24:35,247 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-25 15:24:35,247 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:24:35,247 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-25 15:24:35,247 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-25 15:24:35,260 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 261 out of 467
[2023-10-25 15:24:35,261 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 337 flow. Second operand  has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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)
[2023-10-25 15:24:35,261 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:24:35,261 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 467
[2023-10-25 15:24:35,261 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-25 15:24:40,187 INFO  L130       PetriNetUnfolder]: 23636/50202 cut-off events.
[2023-10-25 15:24:40,188 INFO  L131       PetriNetUnfolder]: For 5807/9277 co-relation queries the response was YES.
[2023-10-25 15:24:40,312 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 88933 conditions, 50202 events. 23636/50202 cut-off events. For 5807/9277 co-relation queries the response was YES. Maximal size of possible extension queue 1073. Compared 496936 event pairs, 16449 based on Foata normal form. 17/42285 useless extension candidates. Maximal degree in co-relation 88922. Up to 30787 conditions per place. 
[2023-10-25 15:24:40,478 INFO  L137   encePairwiseOnDemand]: 461/467 looper letters, 83 selfloop transitions, 5 changer transitions 0/159 dead transitions.
[2023-10-25 15:24:40,478 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 159 transitions, 611 flow
[2023-10-25 15:24:40,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-10-25 15:24:40,479 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-10-25 15:24:40,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions.
[2023-10-25 15:24:40,481 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.6216987865810135
[2023-10-25 15:24:40,481 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 871 transitions.
[2023-10-25 15:24:40,481 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions.
[2023-10-25 15:24:40,481 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-25 15:24:40,482 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions.
[2023-10-25 15:24:40,501 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 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)
[2023-10-25 15:24:40,503 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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)
[2023-10-25 15:24:40,503 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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)
[2023-10-25 15:24:40,503 INFO  L175             Difference]: Start difference. First operand has 131 places, 124 transitions, 337 flow. Second operand 3 states and 871 transitions.
[2023-10-25 15:24:40,503 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 159 transitions, 611 flow
[2023-10-25 15:24:40,515 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 159 transitions, 595 flow, removed 3 selfloop flow, removed 5 redundant places.
[2023-10-25 15:24:40,522 INFO  L231             Difference]: Finished difference. Result has 129 places, 128 transitions, 354 flow
[2023-10-25 15:24:40,523 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=129, PETRI_TRANSITIONS=128}
[2023-10-25 15:24:40,524 INFO  L288   CegarLoopForPetriNet]: 128 programPoint places, 1 predicate places.
[2023-10-25 15:24:40,524 INFO  L495      AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 354 flow
[2023-10-25 15:24:40,525 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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)
[2023-10-25 15:24:40,525 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-25 15:24:40,525 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-25 15:24:40,525 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-10-25 15:24:40,525 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] ===
[2023-10-25 15:24:40,525 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-25 15:24:40,525 INFO  L85        PathProgramCache]: Analyzing trace with hash 1992771771, now seen corresponding path program 1 times
[2023-10-25 15:24:40,526 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-25 15:24:40,526 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601853614]
[2023-10-25 15:24:40,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:24:40,526 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-25 15:24:40,553 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-10-25 15:24:40,569 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685839359]
[2023-10-25 15:24:40,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-25 15:24:40,570 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-10-25 15:24:40,570 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-25 15:24:40,571 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)
[2023-10-25 15:24:40,626 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
[2023-10-25 15:24:40,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-25 15:24:40,823 INFO  L263         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-10-25 15:24:40,824 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2023-10-25 15:24:40,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-25 15:24:40,829 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-10-25 15:24:40,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-25 15:24:40,830 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601853614]
[2023-10-25 15:24:40,830 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-10-25 15:24:40,830 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685839359]
[2023-10-25 15:24:40,830 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685839359] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-25 15:24:40,830 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-25 15:24:40,830 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-10-25 15:24:40,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523446232]
[2023-10-25 15:24:40,831 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-25 15:24:40,831 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-10-25 15:24:40,831 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-25 15:24:40,832 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-10-25 15:24:40,832 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-10-25 15:24:40,869 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 247 out of 467
[2023-10-25 15:24:40,870 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 128 transitions, 354 flow. Second operand  has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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)
[2023-10-25 15:24:40,870 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-25 15:24:40,870 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 467
[2023-10-25 15:24:40,870 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
