./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 4e3d22e98e469d91cee59ee59a7893605d6313bab33afdf939e81a0c217e3b1b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:01:15,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:01:15,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 07:01:15,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:01:15,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:01:15,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:01:15,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:01:15,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:01:15,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:01:15,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:01:15,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:01:15,351 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:01:15,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:01:15,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:01:15,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:01:15,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:01:15,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:01:15,354 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 4e3d22e98e469d91cee59ee59a7893605d6313bab33afdf939e81a0c217e3b1b [2025-03-04 07:01:15,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:01:15,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:01:15,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:01:15,580 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:01:15,580 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:01:15,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i [2025-03-04 07:01:16,694 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26084cb8/467e9265ec744739ab6797cbfc3827ab/FLAGe645d64b2 [2025-03-04 07:01:17,014 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:01:17,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i [2025-03-04 07:01:17,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26084cb8/467e9265ec744739ab6797cbfc3827ab/FLAGe645d64b2 [2025-03-04 07:01:17,050 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26084cb8/467e9265ec744739ab6797cbfc3827ab [2025-03-04 07:01:17,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:01:17,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:01:17,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:01:17,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:01:17,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:01:17,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1298cda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17, skipping insertion in model container [2025-03-04 07:01:17,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:01:17,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:01:17,365 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:01:17,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:01:17,437 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:01:17,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17 WrapperNode [2025-03-04 07:01:17,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:01:17,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:01:17,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:01:17,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:01:17,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,471 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2025-03-04 07:01:17,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:01:17,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:01:17,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:01:17,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:01:17,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:01:17,496 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:01:17,496 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:01:17,496 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:01:17,498 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (1/1) ... [2025-03-04 07:01:17,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:01:17,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:01:17,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 07:01:17,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 07:01:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:01:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 07:01:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 07:01:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:01:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-04 07:01:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-04 07:01:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:01:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:01:17,543 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 07:01:17,626 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:01:17,627 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:01:17,815 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 07:01:17,816 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:01:17,825 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:01:17,826 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:01:17,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:01:17 BoogieIcfgContainer [2025-03-04 07:01:17,827 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:01:17,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:01:17,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:01:17,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:01:17,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:01:17" (1/3) ... [2025-03-04 07:01:17,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e03ff66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:01:17, skipping insertion in model container [2025-03-04 07:01:17,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:17" (2/3) ... [2025-03-04 07:01:17,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e03ff66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:01:17, skipping insertion in model container [2025-03-04 07:01:17,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:01:17" (3/3) ... [2025-03-04 07:01:17,835 INFO L128 eAbstractionObserver]: Analyzing ICFG value-barrier-race.i [2025-03-04 07:01:17,847 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:01:17,848 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG value-barrier-race.i that has 2 procedures, 88 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-04 07:01:17,848 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 07:01:17,891 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 07:01:17,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 92 transitions, 191 flow [2025-03-04 07:01:17,969 INFO L124 PetriNetUnfolderBase]: 4/136 cut-off events. [2025-03-04 07:01:17,971 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 07:01:17,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 136 events. 4/136 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 230 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2025-03-04 07:01:17,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 92 transitions, 191 flow [2025-03-04 07:01:17,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 92 transitions, 191 flow [2025-03-04 07:01:17,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:01:17,990 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@43b38bc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:01:17,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-04 07:01:18,004 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 07:01:18,004 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2025-03-04 07:01:18,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 07:01:18,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:18,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:18,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:18,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash 985085919, now seen corresponding path program 1 times [2025-03-04 07:01:18,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:18,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038127040] [2025-03-04 07:01:18,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:18,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:18,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 07:01:18,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 07:01:18,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:18,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:18,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:18,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:18,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038127040] [2025-03-04 07:01:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038127040] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:18,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:18,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:18,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508775657] [2025-03-04 07:01:18,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:18,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:18,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:18,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:18,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 92 [2025-03-04 07:01:18,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2025-03-04 07:01:18,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:18,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 92 [2025-03-04 07:01:18,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:18,296 INFO L124 PetriNetUnfolderBase]: 7/171 cut-off events. [2025-03-04 07:01:18,299 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2025-03-04 07:01:18,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 171 events. 7/171 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 435 event pairs, 3 based on Foata normal form. 7/156 useless extension candidates. Maximal degree in co-relation 119. Up to 21 conditions per place. [2025-03-04 07:01:18,301 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 9 selfloop transitions, 4 changer transitions 1/93 dead transitions. [2025-03-04 07:01:18,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 219 flow [2025-03-04 07:01:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-03-04 07:01:18,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9311594202898551 [2025-03-04 07:01:18,315 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 191 flow. Second operand 3 states and 257 transitions. [2025-03-04 07:01:18,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 219 flow [2025-03-04 07:01:18,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 219 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:01:18,323 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 215 flow [2025-03-04 07:01:18,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2025-03-04 07:01:18,328 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 4 predicate places. [2025-03-04 07:01:18,330 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 215 flow [2025-03-04 07:01:18,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2025-03-04 07:01:18,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:18,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:18,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 07:01:18,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:18,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:18,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1925391484, now seen corresponding path program 1 times [2025-03-04 07:01:18,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:18,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753128118] [2025-03-04 07:01:18,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:18,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:18,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 07:01:18,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 07:01:18,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:18,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:18,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:18,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753128118] [2025-03-04 07:01:18,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753128118] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:18,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:18,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:01:18,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149098815] [2025-03-04 07:01:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:18,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:01:18,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:18,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:01:18,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:01:18,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2025-03-04 07:01:18,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2025-03-04 07:01:18,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:18,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2025-03-04 07:01:18,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:18,946 INFO L124 PetriNetUnfolderBase]: 5/154 cut-off events. [2025-03-04 07:01:18,947 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-03-04 07:01:18,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 154 events. 5/154 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 367 event pairs, 1 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 119. Up to 21 conditions per place. [2025-03-04 07:01:18,948 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 14 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2025-03-04 07:01:18,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 251 flow [2025-03-04 07:01:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:01:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:01:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2025-03-04 07:01:18,952 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7971014492753623 [2025-03-04 07:01:18,952 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 215 flow. Second operand 6 states and 440 transitions. [2025-03-04 07:01:18,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 251 flow [2025-03-04 07:01:18,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 91 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:18,955 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 215 flow [2025-03-04 07:01:18,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2025-03-04 07:01:18,955 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2025-03-04 07:01:18,955 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 215 flow [2025-03-04 07:01:18,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2025-03-04 07:01:18,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:18,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:18,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 07:01:18,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:18,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1528187624, now seen corresponding path program 1 times [2025-03-04 07:01:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:18,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70095627] [2025-03-04 07:01:18,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:18,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 07:01:18,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 07:01:18,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:18,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:19,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:19,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70095627] [2025-03-04 07:01:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70095627] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:19,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:19,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:19,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248507507] [2025-03-04 07:01:19,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:19,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:19,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:19,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:19,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:19,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 92 [2025-03-04 07:01:19,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2025-03-04 07:01:19,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:19,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 92 [2025-03-04 07:01:19,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:19,048 INFO L124 PetriNetUnfolderBase]: 8/228 cut-off events. [2025-03-04 07:01:19,049 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2025-03-04 07:01:19,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 228 events. 8/228 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 713 event pairs, 1 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 187. Up to 11 conditions per place. [2025-03-04 07:01:19,051 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 7 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2025-03-04 07:01:19,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 95 transitions, 246 flow [2025-03-04 07:01:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2025-03-04 07:01:19,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9528985507246377 [2025-03-04 07:01:19,054 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 215 flow. Second operand 3 states and 263 transitions. [2025-03-04 07:01:19,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 95 transitions, 246 flow [2025-03-04 07:01:19,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 95 transitions, 236 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 07:01:19,057 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 231 flow [2025-03-04 07:01:19,057 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2025-03-04 07:01:19,058 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 4 predicate places. [2025-03-04 07:01:19,058 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 231 flow [2025-03-04 07:01:19,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2025-03-04 07:01:19,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:19,059 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 07:01:19,059 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:19,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:19,060 INFO L85 PathProgramCache]: Analyzing trace with hash 820414800, now seen corresponding path program 1 times [2025-03-04 07:01:19,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:19,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467826043] [2025-03-04 07:01:19,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:19,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:19,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 07:01:19,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 07:01:19,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:19,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:19,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467826043] [2025-03-04 07:01:19,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467826043] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:19,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:19,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414498903] [2025-03-04 07:01:19,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:19,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:19,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:19,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:19,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:19,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 92 [2025-03-04 07:01:19,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2025-03-04 07:01:19,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:19,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 92 [2025-03-04 07:01:19,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:19,130 INFO L124 PetriNetUnfolderBase]: 25/292 cut-off events. [2025-03-04 07:01:19,131 INFO L125 PetriNetUnfolderBase]: For 52/54 co-relation queries the response was YES. [2025-03-04 07:01:19,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 292 events. 25/292 cut-off events. For 52/54 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1100 event pairs, 3 based on Foata normal form. 1/257 useless extension candidates. Maximal degree in co-relation 309. Up to 44 conditions per place. [2025-03-04 07:01:19,135 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 10 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2025-03-04 07:01:19,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 98 transitions, 277 flow [2025-03-04 07:01:19,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2025-03-04 07:01:19,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9202898550724637 [2025-03-04 07:01:19,137 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 231 flow. Second operand 3 states and 254 transitions. [2025-03-04 07:01:19,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 98 transitions, 277 flow [2025-03-04 07:01:19,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 98 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:19,141 INFO L231 Difference]: Finished difference. Result has 97 places, 98 transitions, 271 flow [2025-03-04 07:01:19,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=97, PETRI_TRANSITIONS=98} [2025-03-04 07:01:19,142 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 6 predicate places. [2025-03-04 07:01:19,142 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 98 transitions, 271 flow [2025-03-04 07:01:19,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2025-03-04 07:01:19,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:19,143 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 07:01:19,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:19,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:19,144 INFO L85 PathProgramCache]: Analyzing trace with hash 415989835, now seen corresponding path program 1 times [2025-03-04 07:01:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:19,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890939036] [2025-03-04 07:01:19,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:19,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:19,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 07:01:19,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 07:01:19,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:19,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890939036] [2025-03-04 07:01:19,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890939036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:19,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:19,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:19,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428982685] [2025-03-04 07:01:19,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:19,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:19,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:19,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:19,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:19,213 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 92 [2025-03-04 07:01:19,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 98 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2025-03-04 07:01:19,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:19,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 92 [2025-03-04 07:01:19,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:19,249 INFO L124 PetriNetUnfolderBase]: 19/332 cut-off events. [2025-03-04 07:01:19,249 INFO L125 PetriNetUnfolderBase]: For 75/87 co-relation queries the response was YES. [2025-03-04 07:01:19,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 332 events. 19/332 cut-off events. For 75/87 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1390 event pairs, 0 based on Foata normal form. 3/305 useless extension candidates. Maximal degree in co-relation 345. Up to 26 conditions per place. [2025-03-04 07:01:19,251 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 6 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2025-03-04 07:01:19,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 101 transitions, 302 flow [2025-03-04 07:01:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2025-03-04 07:01:19,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9492753623188406 [2025-03-04 07:01:19,252 INFO L175 Difference]: Start difference. First operand has 97 places, 98 transitions, 271 flow. Second operand 3 states and 262 transitions. [2025-03-04 07:01:19,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 101 transitions, 302 flow [2025-03-04 07:01:19,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 101 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:19,254 INFO L231 Difference]: Finished difference. Result has 99 places, 100 transitions, 287 flow [2025-03-04 07:01:19,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=287, PETRI_PLACES=99, PETRI_TRANSITIONS=100} [2025-03-04 07:01:19,255 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 8 predicate places. [2025-03-04 07:01:19,255 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 100 transitions, 287 flow [2025-03-04 07:01:19,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2025-03-04 07:01:19,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:19,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 07:01:19,256 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:19,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 609574464, now seen corresponding path program 1 times [2025-03-04 07:01:19,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:19,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827597032] [2025-03-04 07:01:19,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:19,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:19,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 07:01:19,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 07:01:19,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:19,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:19,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827597032] [2025-03-04 07:01:19,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827597032] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:19,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:19,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:01:19,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783070649] [2025-03-04 07:01:19,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:19,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:01:19,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:19,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:01:19,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:01:19,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 92 [2025-03-04 07:01:19,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 100 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2025-03-04 07:01:19,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:19,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 92 [2025-03-04 07:01:19,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:19,446 INFO L124 PetriNetUnfolderBase]: 19/338 cut-off events. [2025-03-04 07:01:19,446 INFO L125 PetriNetUnfolderBase]: For 70/80 co-relation queries the response was YES. [2025-03-04 07:01:19,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 338 events. 19/338 cut-off events. For 70/80 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1435 event pairs, 0 based on Foata normal form. 1/319 useless extension candidates. Maximal degree in co-relation 360. Up to 44 conditions per place. [2025-03-04 07:01:19,448 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 11 selfloop transitions, 2 changer transitions 5/105 dead transitions. [2025-03-04 07:01:19,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 333 flow [2025-03-04 07:01:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:01:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:01:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2025-03-04 07:01:19,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8713768115942029 [2025-03-04 07:01:19,449 INFO L175 Difference]: Start difference. First operand has 99 places, 100 transitions, 287 flow. Second operand 6 states and 481 transitions. [2025-03-04 07:01:19,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 333 flow [2025-03-04 07:01:19,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 105 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:19,452 INFO L231 Difference]: Finished difference. Result has 106 places, 100 transitions, 297 flow [2025-03-04 07:01:19,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=106, PETRI_TRANSITIONS=100} [2025-03-04 07:01:19,453 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 15 predicate places. [2025-03-04 07:01:19,453 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 100 transitions, 297 flow [2025-03-04 07:01:19,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2025-03-04 07:01:19,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:19,453 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 07:01:19,454 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 07:01:19,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:19,454 INFO L85 PathProgramCache]: Analyzing trace with hash -938293247, now seen corresponding path program 1 times [2025-03-04 07:01:19,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:19,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533685110] [2025-03-04 07:01:19,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:19,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:19,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 07:01:19,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 07:01:19,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:01:19,479 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 07:01:19,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 07:01:19,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 07:01:19,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:01:19,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 07:01:19,503 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 07:01:19,504 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2025-03-04 07:01:19,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-04 07:01:19,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-04 07:01:19,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-04 07:01:19,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2025-03-04 07:01:19,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-03-04 07:01:19,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-04 07:01:19,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-04 07:01:19,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-04 07:01:19,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 07:01:19,507 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,509 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 07:01:19,509 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 07:01:19,522 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 07:01:19,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 107 transitions, 230 flow [2025-03-04 07:01:19,545 INFO L124 PetriNetUnfolderBase]: 8/226 cut-off events. [2025-03-04 07:01:19,545 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 07:01:19,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 226 events. 8/226 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 453 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 138. Up to 6 conditions per place. [2025-03-04 07:01:19,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 107 transitions, 230 flow [2025-03-04 07:01:19,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 107 transitions, 230 flow [2025-03-04 07:01:19,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:01:19,547 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@43b38bc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:01:19,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-03-04 07:01:19,550 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 07:01:19,550 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2025-03-04 07:01:19,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 07:01:19,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:19,550 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:19,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:19,550 INFO L85 PathProgramCache]: Analyzing trace with hash 307505951, now seen corresponding path program 1 times [2025-03-04 07:01:19,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:19,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598583245] [2025-03-04 07:01:19,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:19,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:19,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 07:01:19,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 07:01:19,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:19,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598583245] [2025-03-04 07:01:19,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598583245] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:19,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:19,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:19,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16283015] [2025-03-04 07:01:19,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:19,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:19,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:19,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:19,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:19,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2025-03-04 07:01:19,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2025-03-04 07:01:19,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:19,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2025-03-04 07:01:19,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:19,654 INFO L124 PetriNetUnfolderBase]: 43/436 cut-off events. [2025-03-04 07:01:19,656 INFO L125 PetriNetUnfolderBase]: For 29/36 co-relation queries the response was YES. [2025-03-04 07:01:19,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 436 events. 43/436 cut-off events. For 29/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1917 event pairs, 23 based on Foata normal form. 40/411 useless extension candidates. Maximal degree in co-relation 309. Up to 83 conditions per place. [2025-03-04 07:01:19,660 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 12 selfloop transitions, 5 changer transitions 1/108 dead transitions. [2025-03-04 07:01:19,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 108 transitions, 266 flow [2025-03-04 07:01:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2025-03-04 07:01:19,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9221183800623053 [2025-03-04 07:01:19,663 INFO L175 Difference]: Start difference. First operand has 105 places, 107 transitions, 230 flow. Second operand 3 states and 296 transitions. [2025-03-04 07:01:19,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 108 transitions, 266 flow [2025-03-04 07:01:19,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 108 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:01:19,667 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 260 flow [2025-03-04 07:01:19,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=109, PETRI_TRANSITIONS=107} [2025-03-04 07:01:19,668 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2025-03-04 07:01:19,668 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 260 flow [2025-03-04 07:01:19,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2025-03-04 07:01:19,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:19,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:19,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 07:01:19,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:19,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:19,669 INFO L85 PathProgramCache]: Analyzing trace with hash -244708316, now seen corresponding path program 1 times [2025-03-04 07:01:19,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783538942] [2025-03-04 07:01:19,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:19,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:19,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 07:01:19,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 07:01:19,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:19,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:19,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:19,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783538942] [2025-03-04 07:01:19,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783538942] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:19,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:19,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:01:19,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144283120] [2025-03-04 07:01:19,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:19,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:01:19,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:19,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:01:19,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:01:19,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2025-03-04 07:01:19,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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) [2025-03-04 07:01:19,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:19,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2025-03-04 07:01:19,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:19,991 INFO L124 PetriNetUnfolderBase]: 28/353 cut-off events. [2025-03-04 07:01:19,991 INFO L125 PetriNetUnfolderBase]: For 40/45 co-relation queries the response was YES. [2025-03-04 07:01:19,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 353 events. 28/353 cut-off events. For 40/45 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1337 event pairs, 9 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 273. Up to 45 conditions per place. [2025-03-04 07:01:19,995 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 16 selfloop transitions, 5 changer transitions 0/106 dead transitions. [2025-03-04 07:01:19,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 106 transitions, 300 flow [2025-03-04 07:01:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:01:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:01:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2025-03-04 07:01:19,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8006230529595015 [2025-03-04 07:01:19,996 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 260 flow. Second operand 6 states and 514 transitions. [2025-03-04 07:01:19,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 106 transitions, 300 flow [2025-03-04 07:01:19,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 106 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:20,000 INFO L231 Difference]: Finished difference. Result has 110 places, 106 transitions, 258 flow [2025-03-04 07:01:20,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=258, PETRI_PLACES=110, PETRI_TRANSITIONS=106} [2025-03-04 07:01:20,001 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 5 predicate places. [2025-03-04 07:01:20,002 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 106 transitions, 258 flow [2025-03-04 07:01:20,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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) [2025-03-04 07:01:20,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:20,002 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:20,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 07:01:20,003 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:20,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash -670711477, now seen corresponding path program 1 times [2025-03-04 07:01:20,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:20,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051041327] [2025-03-04 07:01:20,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:20,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:20,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 07:01:20,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 07:01:20,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:20,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:20,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:20,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051041327] [2025-03-04 07:01:20,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051041327] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:20,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:20,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:20,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43995505] [2025-03-04 07:01:20,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:20,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:20,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:20,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:20,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 107 [2025-03-04 07:01:20,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:01:20,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:20,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 107 [2025-03-04 07:01:20,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:20,146 INFO L124 PetriNetUnfolderBase]: 102/1044 cut-off events. [2025-03-04 07:01:20,146 INFO L125 PetriNetUnfolderBase]: For 104/125 co-relation queries the response was YES. [2025-03-04 07:01:20,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 1044 events. 102/1044 cut-off events. For 104/125 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7272 event pairs, 25 based on Foata normal form. 4/885 useless extension candidates. Maximal degree in co-relation 613. Up to 93 conditions per place. [2025-03-04 07:01:20,152 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 14 selfloop transitions, 5 changer transitions 0/114 dead transitions. [2025-03-04 07:01:20,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 323 flow [2025-03-04 07:01:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2025-03-04 07:01:20,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9345794392523364 [2025-03-04 07:01:20,153 INFO L175 Difference]: Start difference. First operand has 110 places, 106 transitions, 258 flow. Second operand 3 states and 300 transitions. [2025-03-04 07:01:20,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 323 flow [2025-03-04 07:01:20,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 114 transitions, 313 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 07:01:20,156 INFO L231 Difference]: Finished difference. Result has 109 places, 111 transitions, 292 flow [2025-03-04 07:01:20,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=109, PETRI_TRANSITIONS=111} [2025-03-04 07:01:20,157 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2025-03-04 07:01:20,157 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 111 transitions, 292 flow [2025-03-04 07:01:20,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:01:20,158 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:20,158 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:20,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 07:01:20,158 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:20,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:20,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1677503664, now seen corresponding path program 1 times [2025-03-04 07:01:20,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:20,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006939517] [2025-03-04 07:01:20,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:20,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:20,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 07:01:20,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 07:01:20,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:20,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:20,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:20,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006939517] [2025-03-04 07:01:20,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006939517] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:20,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:20,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932123118] [2025-03-04 07:01:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:20,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:20,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:20,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:20,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:20,191 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2025-03-04 07:01:20,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2025-03-04 07:01:20,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:20,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2025-03-04 07:01:20,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:20,240 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][102], [65#L1034-1true, 106#true, 124#true, 33#L1022-1true, 104#true, Black: 119#true, 82#L1022-2true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,241 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,241 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,241 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,241 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,248 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][111], [65#L1034-1true, 25#L1022-1true, 106#true, 124#true, 104#true, 73#L1022-2true, Black: 119#true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,248 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,249 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,249 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,249 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,253 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][56], [106#true, 124#true, 33#L1022-1true, 104#true, 91#L1035-5true, Black: 119#true, 82#L1022-2true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,253 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,253 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,253 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,253 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,257 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][86], [25#L1022-1true, 106#true, 124#true, 73#L1022-2true, 104#true, 91#L1035-5true, Black: 119#true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,258 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,258 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,258 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,258 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,279 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][56], [57#ULTIMATE.startFINALtrue, 106#true, 124#true, 33#L1022-1true, 104#true, Black: 119#true, 82#L1022-2true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,279 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2025-03-04 07:01:20,280 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-03-04 07:01:20,280 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-03-04 07:01:20,280 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-03-04 07:01:20,281 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][86], [57#ULTIMATE.startFINALtrue, 25#L1022-1true, 106#true, 124#true, 73#L1022-2true, 104#true, Black: 119#true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,281 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2025-03-04 07:01:20,282 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-03-04 07:01:20,282 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-03-04 07:01:20,282 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-03-04 07:01:20,300 INFO L124 PetriNetUnfolderBase]: 298/1564 cut-off events. [2025-03-04 07:01:20,300 INFO L125 PetriNetUnfolderBase]: For 483/526 co-relation queries the response was YES. [2025-03-04 07:01:20,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 1564 events. 298/1564 cut-off events. For 483/526 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11515 event pairs, 48 based on Foata normal form. 8/1307 useless extension candidates. Maximal degree in co-relation 1971. Up to 348 conditions per place. [2025-03-04 07:01:20,309 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 14 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2025-03-04 07:01:20,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 117 transitions, 360 flow [2025-03-04 07:01:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2025-03-04 07:01:20,310 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2025-03-04 07:01:20,311 INFO L175 Difference]: Start difference. First operand has 109 places, 111 transitions, 292 flow. Second operand 3 states and 291 transitions. [2025-03-04 07:01:20,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 117 transitions, 360 flow [2025-03-04 07:01:20,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 117 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:20,314 INFO L231 Difference]: Finished difference. Result has 111 places, 117 transitions, 348 flow [2025-03-04 07:01:20,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=111, PETRI_TRANSITIONS=117} [2025-03-04 07:01:20,314 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 6 predicate places. [2025-03-04 07:01:20,314 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 117 transitions, 348 flow [2025-03-04 07:01:20,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2025-03-04 07:01:20,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:20,315 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:20,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 07:01:20,315 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:20,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash -977485245, now seen corresponding path program 1 times [2025-03-04 07:01:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:20,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522805052] [2025-03-04 07:01:20,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:20,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:20,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 07:01:20,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 07:01:20,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:20,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:20,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:20,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522805052] [2025-03-04 07:01:20,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522805052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:20,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:20,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:20,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256822199] [2025-03-04 07:01:20,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:20,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:20,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:20,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:20,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:20,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 107 [2025-03-04 07:01:20,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 117 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:01:20,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:20,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 107 [2025-03-04 07:01:20,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:20,439 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][104], [65#L1034-1true, Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 124#true, 33#L1022-1true, 104#true, 129#true, Black: 119#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,439 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,439 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,439 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,439 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,440 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][119], [65#L1034-1true, Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 25#L1022-1true, 106#true, 124#true, 73#L1022-2true, 104#true, Black: 119#true, 129#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,440 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,440 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,440 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,440 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,446 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][56], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 124#true, 33#L1022-1true, 104#true, 91#L1035-5true, Black: 119#true, 129#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,446 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,447 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,447 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,447 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,455 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][84], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 25#L1022-1true, 106#true, 124#true, 73#L1022-2true, 104#true, 91#L1035-5true, Black: 119#true, 129#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,455 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,455 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,455 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,455 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,552 INFO L124 PetriNetUnfolderBase]: 382/2576 cut-off events. [2025-03-04 07:01:20,553 INFO L125 PetriNetUnfolderBase]: For 919/1214 co-relation queries the response was YES. [2025-03-04 07:01:20,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 2576 events. 382/2576 cut-off events. For 919/1214 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 23519 event pairs, 42 based on Foata normal form. 25/2272 useless extension candidates. Maximal degree in co-relation 2510. Up to 353 conditions per place. [2025-03-04 07:01:20,567 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 16 selfloop transitions, 7 changer transitions 0/127 dead transitions. [2025-03-04 07:01:20,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 127 transitions, 435 flow [2025-03-04 07:01:20,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2025-03-04 07:01:20,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9345794392523364 [2025-03-04 07:01:20,568 INFO L175 Difference]: Start difference. First operand has 111 places, 117 transitions, 348 flow. Second operand 3 states and 300 transitions. [2025-03-04 07:01:20,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 127 transitions, 435 flow [2025-03-04 07:01:20,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 127 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:20,573 INFO L231 Difference]: Finished difference. Result has 113 places, 124 transitions, 402 flow [2025-03-04 07:01:20,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=113, PETRI_TRANSITIONS=124} [2025-03-04 07:01:20,574 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 8 predicate places. [2025-03-04 07:01:20,574 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 124 transitions, 402 flow [2025-03-04 07:01:20,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:01:20,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:20,575 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:20,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 07:01:20,575 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:20,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:20,576 INFO L85 PathProgramCache]: Analyzing trace with hash -325021237, now seen corresponding path program 1 times [2025-03-04 07:01:20,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:20,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197224616] [2025-03-04 07:01:20,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:20,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:20,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 07:01:20,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 07:01:20,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:20,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:20,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:20,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197224616] [2025-03-04 07:01:20,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197224616] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:20,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:20,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:01:20,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526923486] [2025-03-04 07:01:20,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:20,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:01:20,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:20,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:01:20,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:01:20,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2025-03-04 07:01:20,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 124 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 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) [2025-03-04 07:01:20,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:20,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2025-03-04 07:01:20,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:20,795 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][100], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 65#L1034-1true, 106#true, 33#L1022-1true, Black: 131#(= |#race~data~0| 0), 104#true, 134#true, 129#true, Black: 119#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,796 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,796 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,796 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,796 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,796 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][123], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 65#L1034-1true, 25#L1022-1true, 106#true, Black: 131#(= |#race~data~0| 0), 104#true, 73#L1022-2true, 134#true, 129#true, Black: 119#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,796 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,796 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:20,796 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,797 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:20,803 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][56], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 33#L1022-1true, Black: 131#(= |#race~data~0| 0), 104#true, 91#L1035-5true, 134#true, 129#true, Black: 119#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,804 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,804 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,804 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,804 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,814 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][77], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 25#L1022-1true, 106#true, Black: 131#(= |#race~data~0| 0), 73#L1022-2true, 104#true, 91#L1035-5true, 134#true, 129#true, Black: 119#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2025-03-04 07:01:20,814 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,815 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,815 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:20,815 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:20,939 INFO L124 PetriNetUnfolderBase]: 363/2559 cut-off events. [2025-03-04 07:01:20,939 INFO L125 PetriNetUnfolderBase]: For 761/978 co-relation queries the response was YES. [2025-03-04 07:01:20,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4344 conditions, 2559 events. 363/2559 cut-off events. For 761/978 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 23555 event pairs, 33 based on Foata normal form. 1/2310 useless extension candidates. Maximal degree in co-relation 3398. Up to 329 conditions per place. [2025-03-04 07:01:20,952 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 14 selfloop transitions, 2 changer transitions 5/130 dead transitions. [2025-03-04 07:01:20,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 130 transitions, 456 flow [2025-03-04 07:01:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:01:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:01:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2025-03-04 07:01:20,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8660436137071651 [2025-03-04 07:01:20,954 INFO L175 Difference]: Start difference. First operand has 113 places, 124 transitions, 402 flow. Second operand 6 states and 556 transitions. [2025-03-04 07:01:20,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 130 transitions, 456 flow [2025-03-04 07:01:20,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:20,957 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 410 flow [2025-03-04 07:01:20,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2025-03-04 07:01:20,958 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 15 predicate places. [2025-03-04 07:01:20,958 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 410 flow [2025-03-04 07:01:20,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 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) [2025-03-04 07:01:20,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:20,959 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:20,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 07:01:20,959 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:20,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1019692771, now seen corresponding path program 1 times [2025-03-04 07:01:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:20,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52507157] [2025-03-04 07:01:20,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:20,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:20,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-04 07:01:20,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-04 07:01:20,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:20,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:01:21,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52507157] [2025-03-04 07:01:21,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52507157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:21,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:21,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:01:21,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914603747] [2025-03-04 07:01:21,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:21,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:21,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:21,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:21,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:21,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 107 [2025-03-04 07:01:21,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2025-03-04 07:01:21,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:21,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 107 [2025-03-04 07:01:21,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:21,095 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][78], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 33#L1022-1true, Black: 131#(= |#race~data~0| 0), 145#true, 104#true, 134#true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 65#L1034-1true, 106#true, Black: 119#true, 82#L1022-2true]) [2025-03-04 07:01:21,095 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:21,095 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:21,095 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:21,095 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:21,098 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][101], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), Black: 131#(= |#race~data~0| 0), 145#true, 73#L1022-2true, 104#true, 134#true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), 65#L1034-1true, Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 25#L1022-1true, 106#true, Black: 119#true]) [2025-03-04 07:01:21,098 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-04 07:01:21,098 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2025-03-04 07:01:21,098 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:21,098 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2025-03-04 07:01:21,103 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][40], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 33#L1022-1true, Black: 131#(= |#race~data~0| 0), 145#true, 104#true, 91#L1035-5true, 134#true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 106#true, Black: 119#true, 82#L1022-2true]) [2025-03-04 07:01:21,103 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:21,103 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:21,103 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:21,103 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:21,109 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([304] L1022-->L1022-2: Formula: (= |v_#race~ready~0_6| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_6|} AuxVars[] AssignedVars[#race~ready~0][57], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), Black: 131#(= |#race~data~0| 0), 145#true, 73#L1022-2true, 104#true, 91#L1035-5true, 134#true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 25#L1022-1true, 106#true, Black: 119#true]) [2025-03-04 07:01:21,109 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2025-03-04 07:01:21,109 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:21,109 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2025-03-04 07:01:21,109 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2025-03-04 07:01:21,177 INFO L124 PetriNetUnfolderBase]: 216/1424 cut-off events. [2025-03-04 07:01:21,177 INFO L125 PetriNetUnfolderBase]: For 358/472 co-relation queries the response was YES. [2025-03-04 07:01:21,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2380 conditions, 1424 events. 216/1424 cut-off events. For 358/472 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11065 event pairs, 32 based on Foata normal form. 9/1323 useless extension candidates. Maximal degree in co-relation 2324. Up to 214 conditions per place. [2025-03-04 07:01:21,184 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 6 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2025-03-04 07:01:21,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 113 transitions, 368 flow [2025-03-04 07:01:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2025-03-04 07:01:21,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9283489096573209 [2025-03-04 07:01:21,185 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 410 flow. Second operand 3 states and 298 transitions. [2025-03-04 07:01:21,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 113 transitions, 368 flow [2025-03-04 07:01:21,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 346 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-03-04 07:01:21,190 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 340 flow [2025-03-04 07:01:21,190 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2025-03-04 07:01:21,191 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2025-03-04 07:01:21,192 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 340 flow [2025-03-04 07:01:21,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2025-03-04 07:01:21,192 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:21,192 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:21,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 07:01:21,192 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-04 07:01:21,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:21,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1582099493, now seen corresponding path program 1 times [2025-03-04 07:01:21,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:21,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496976975] [2025-03-04 07:01:21,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:21,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:21,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 07:01:21,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 07:01:21,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:21,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:01:21,204 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 07:01:21,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 07:01:21,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 07:01:21,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:21,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:01:21,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 07:01:21,221 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 07:01:21,221 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2025-03-04 07:01:21,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2025-03-04 07:01:21,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2025-03-04 07:01:21,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2025-03-04 07:01:21,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2025-03-04 07:01:21,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2025-03-04 07:01:21,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2025-03-04 07:01:21,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2025-03-04 07:01:21,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2025-03-04 07:01:21,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2025-03-04 07:01:21,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2025-03-04 07:01:21,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 07:01:21,224 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:21,259 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2025-03-04 07:01:21,259 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 07:01:21,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 07:01:21 BasicIcfg [2025-03-04 07:01:21,264 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 07:01:21,264 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 07:01:21,264 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 07:01:21,264 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 07:01:21,266 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:01:17" (3/4) ... [2025-03-04 07:01:21,266 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-04 07:01:21,312 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 7. [2025-03-04 07:01:21,350 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 07:01:21,350 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 07:01:21,350 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 07:01:21,351 INFO L158 Benchmark]: Toolchain (without parser) took 4295.48ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 152.1MB in the beginning and 162.6MB in the end (delta: -10.5MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2025-03-04 07:01:21,351 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:01:21,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.36ms. Allocated memory is still 201.3MB. Free memory was 152.1MB in the beginning and 125.1MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 07:01:21,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.22ms. Allocated memory is still 201.3MB. Free memory was 125.1MB in the beginning and 123.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:01:21,353 INFO L158 Benchmark]: Boogie Preprocessor took 23.54ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 121.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 07:01:21,353 INFO L158 Benchmark]: IcfgBuilder took 330.75ms. Allocated memory is still 201.3MB. Free memory was 121.9MB in the beginning and 107.4MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 07:01:21,353 INFO L158 Benchmark]: TraceAbstraction took 3435.14ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 106.6MB in the beginning and 173.4MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:01:21,354 INFO L158 Benchmark]: Witness Printer took 86.27ms. Allocated memory is still 243.3MB. Free memory was 173.4MB in the beginning and 162.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 07:01:21,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.36ms. Allocated memory is still 201.3MB. Free memory was 152.1MB in the beginning and 125.1MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.22ms. Allocated memory is still 201.3MB. Free memory was 125.1MB in the beginning and 123.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.54ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 121.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 330.75ms. Allocated memory is still 201.3MB. Free memory was 121.9MB in the beginning and 107.4MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3435.14ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 106.6MB in the beginning and 173.4MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.27ms. Allocated memory is still 243.3MB. Free memory was 173.4MB in the beginning and 162.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1022]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 _Bool ready = 0; VAL [ready=0] [L1020] 0 int data = 0; VAL [data=0, ready=0] [L1027] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, ready=0, threads_total=1] [L1028] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, ready=0] [L1028] RET 0 assume_abort_if_not(threads_total >= 0) [L1029] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, ready=0, threads_total=1, tids={-2:0}] [L1030] 0 int i = 0; VAL [data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1030] COND TRUE 0 i < threads_total VAL [data=0, ready=0] [L1031] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1031] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1022] COND TRUE 1 !ready [L1022] 1 !ready VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=0] [L1030] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, i=1, ready=0, threads_total=1, tids={-2:0}] [L1030] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=0] [L1033] 0 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=0, threads_total=1, tids={-2:0}] [L1034] 0 ready = 1 VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=1, threads_total=1, tids={-2:0}] [L1022] 1 !ready VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=1] Now there is a data race on ~ready~0 between C: ready = 1 [1034] and C: !ready [1022] - UnprovableResult [Line: 1033]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1034]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1036]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 12 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=6, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 113 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 17 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=6, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 474 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-04 07:01:21,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)