/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/pthread/queue_longer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 00:06:10,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 00:06:10,586 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 00:06:10,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 00:06:10,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 00:06:10,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 00:06:10,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 00:06:10,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 00:06:10,614 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 00:06:10,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 00:06:10,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 00:06:10,618 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 00:06:10,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 00:06:10,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 00:06:10,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 00:06:10,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 00:06:10,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 00:06:10,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 00:06:10,620 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 00:06:10,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 00:06:10,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 00:06:10,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 00:06:10,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 00:06:10,621 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 00:06:10,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 00:06:10,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 00:06:10,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 00:06:10,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 00:06:10,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 00:06:10,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 00:06:10,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 00:06:10,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 00:06:10,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 00:06:10,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 00:06:10,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 00:06:10,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 00:06:10,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 00:06:10,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 00:06:10,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 00:06:10,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longer.i [2023-11-30 00:06:11,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 00:06:12,041 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 00:06:12,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i [2023-11-30 00:06:12,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a8ab3170/8a7a1161c1d44c27a8b23e7612de4d43/FLAGa7a2fe8c9 [2023-11-30 00:06:12,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a8ab3170/8a7a1161c1d44c27a8b23e7612de4d43 [2023-11-30 00:06:12,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 00:06:12,065 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 00:06:12,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 00:06:12,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 00:06:12,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 00:06:12,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb51fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12, skipping insertion in model container [2023-11-30 00:06:12,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 00:06:12,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 00:06:12,450 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 00:06:12,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 00:06:12,551 INFO L206 MainTranslator]: Completed translation [2023-11-30 00:06:12,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12 WrapperNode [2023-11-30 00:06:12,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 00:06:12,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 00:06:12,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 00:06:12,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 00:06:12,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,633 INFO L138 Inliner]: procedures = 275, calls = 66, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 500 [2023-11-30 00:06:12,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 00:06:12,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 00:06:12,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 00:06:12,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 00:06:12,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 00:06:12,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 00:06:12,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 00:06:12,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 00:06:12,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (1/1) ... [2023-11-30 00:06:12,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 00:06:12,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 00:06:12,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 00:06:12,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 00:06:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-30 00:06:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-30 00:06:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-30 00:06:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-30 00:06:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 00:06:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 00:06:12,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 00:06:12,790 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 00:06:12,958 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 00:06:12,960 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 00:06:13,510 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 00:06:13,547 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 00:06:13,547 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-30 00:06:13,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:06:13 BoogieIcfgContainer [2023-11-30 00:06:13,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 00:06:13,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 00:06:13,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 00:06:13,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 00:06:13,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:06:12" (1/3) ... [2023-11-30 00:06:13,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256cfe2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:06:13, skipping insertion in model container [2023-11-30 00:06:13,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:06:12" (2/3) ... [2023-11-30 00:06:13,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256cfe2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:06:13, skipping insertion in model container [2023-11-30 00:06:13,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:06:13" (3/3) ... [2023-11-30 00:06:13,554 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2023-11-30 00:06:13,566 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 00:06:13,567 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-30 00:06:13,567 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 00:06:13,676 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 00:06:13,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 558 places, 569 transitions, 1152 flow [2023-11-30 00:06:13,842 INFO L124 PetriNetUnfolderBase]: 18/567 cut-off events. [2023-11-30 00:06:13,842 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 00:06:13,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 567 events. 18/567 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 849 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 436. Up to 2 conditions per place. [2023-11-30 00:06:13,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 558 places, 569 transitions, 1152 flow [2023-11-30 00:06:13,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 546 places, 557 transitions, 1123 flow [2023-11-30 00:06:13,870 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:06:13,875 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@7eac28c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:06:13,875 INFO L363 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-11-30 00:06:13,878 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:06:13,878 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-30 00:06:13,878 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:06:13,878 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:06:13,879 INFO L232 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] [2023-11-30 00:06:13,879 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-30 00:06:13,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:06:13,883 INFO L85 PathProgramCache]: Analyzing trace with hash 91691771, now seen corresponding path program 1 times [2023-11-30 00:06:13,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:06:13,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871767152] [2023-11-30 00:06:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:06:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:06:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:06:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:06:14,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:06:14,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871767152] [2023-11-30 00:06:14,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871767152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:06:14,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:06:14,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:06:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006073102] [2023-11-30 00:06:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:06:14,045 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:06:14,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:06:14,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:06:14,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:06:14,086 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 569 [2023-11-30 00:06:14,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 557 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:14,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:06:14,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 569 [2023-11-30 00:06:14,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:06:14,534 INFO L124 PetriNetUnfolderBase]: 118/1989 cut-off events. [2023-11-30 00:06:14,535 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-30 00:06:14,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2193 conditions, 1989 events. 118/1989 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 9979 event pairs, 65 based on Foata normal form. 52/1810 useless extension candidates. Maximal degree in co-relation 2006. Up to 167 conditions per place. [2023-11-30 00:06:14,551 INFO L140 encePairwiseOnDemand]: 559/569 looper letters, 21 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2023-11-30 00:06:14,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 535 transitions, 1125 flow [2023-11-30 00:06:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:06:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:06:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1624 transitions. [2023-11-30 00:06:14,564 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9513766842413591 [2023-11-30 00:06:14,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1624 transitions. [2023-11-30 00:06:14,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1624 transitions. [2023-11-30 00:06:14,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:06:14,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1624 transitions. [2023-11-30 00:06:14,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:14,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 569.0) internal successors, (2276), 4 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:14,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 569.0) internal successors, (2276), 4 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:14,581 INFO L307 CegarLoopForPetriNet]: 546 programPoint places, -12 predicate places. [2023-11-30 00:06:14,581 INFO L500 AbstractCegarLoop]: Abstraction has has 534 places, 535 transitions, 1125 flow [2023-11-30 00:06:14,582 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:14,582 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:06:14,582 INFO L232 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] [2023-11-30 00:06:14,583 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 00:06:14,583 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-30 00:06:14,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:06:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash 140601170, now seen corresponding path program 1 times [2023-11-30 00:06:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:06:14,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569147492] [2023-11-30 00:06:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:06:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:06:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:06:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:06:14,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:06:14,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569147492] [2023-11-30 00:06:14,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569147492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:06:14,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:06:14,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:06:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19971348] [2023-11-30 00:06:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:06:14,640 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:06:14,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:06:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:06:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:06:14,642 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 569 [2023-11-30 00:06:14,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 535 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:14,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:06:14,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 569 [2023-11-30 00:06:14,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:06:15,186 INFO L124 PetriNetUnfolderBase]: 192/2728 cut-off events. [2023-11-30 00:06:15,186 INFO L125 PetriNetUnfolderBase]: For 209/282 co-relation queries the response was YES. [2023-11-30 00:06:15,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3221 conditions, 2728 events. 192/2728 cut-off events. For 209/282 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16706 event pairs, 125 based on Foata normal form. 0/2384 useless extension candidates. Maximal degree in co-relation 2882. Up to 222 conditions per place. [2023-11-30 00:06:15,206 INFO L140 encePairwiseOnDemand]: 566/569 looper letters, 21 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2023-11-30 00:06:15,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 534 transitions, 1169 flow [2023-11-30 00:06:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:06:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:06:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1617 transitions. [2023-11-30 00:06:15,209 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9472759226713533 [2023-11-30 00:06:15,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1617 transitions. [2023-11-30 00:06:15,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1617 transitions. [2023-11-30 00:06:15,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:06:15,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1617 transitions. [2023-11-30 00:06:15,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.0) internal successors, (1617), 3 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:15,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 569.0) internal successors, (2276), 4 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:15,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 569.0) internal successors, (2276), 4 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:15,216 INFO L307 CegarLoopForPetriNet]: 546 programPoint places, -11 predicate places. [2023-11-30 00:06:15,216 INFO L500 AbstractCegarLoop]: Abstraction has has 535 places, 534 transitions, 1169 flow [2023-11-30 00:06:15,217 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:15,217 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:06:15,218 INFO L232 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] [2023-11-30 00:06:15,218 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 00:06:15,218 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-30 00:06:15,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:06:15,219 INFO L85 PathProgramCache]: Analyzing trace with hash 776661867, now seen corresponding path program 1 times [2023-11-30 00:06:15,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:06:15,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17901854] [2023-11-30 00:06:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:06:15,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:06:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:06:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:06:15,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:06:15,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17901854] [2023-11-30 00:06:15,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17901854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:06:15,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:06:15,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 00:06:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219307901] [2023-11-30 00:06:15,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:06:15,639 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 00:06:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:06:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 00:06:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 00:06:15,641 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 569 [2023-11-30 00:06:15,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 534 transitions, 1169 flow. Second operand has 6 states, 6 states have (on average 324.5) internal successors, (1947), 6 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:15,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:06:15,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 569 [2023-11-30 00:06:15,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:06:46,878 INFO L124 PetriNetUnfolderBase]: 100493/210304 cut-off events. [2023-11-30 00:06:46,878 INFO L125 PetriNetUnfolderBase]: For 24523/28456 co-relation queries the response was YES. [2023-11-30 00:06:47,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379501 conditions, 210304 events. 100493/210304 cut-off events. For 24523/28456 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 2159535 event pairs, 96436 based on Foata normal form. 0/180799 useless extension candidates. Maximal degree in co-relation 378118. Up to 151511 conditions per place. [2023-11-30 00:06:48,456 INFO L140 encePairwiseOnDemand]: 563/569 looper letters, 227 selfloop transitions, 5 changer transitions 0/533 dead transitions. [2023-11-30 00:06:48,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 533 transitions, 1631 flow [2023-11-30 00:06:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 00:06:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 00:06:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2171 transitions. [2023-11-30 00:06:48,461 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6359109548916227 [2023-11-30 00:06:48,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2171 transitions. [2023-11-30 00:06:48,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2171 transitions. [2023-11-30 00:06:48,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:06:48,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2171 transitions. [2023-11-30 00:06:48,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.8333333333333) internal successors, (2171), 6 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:48,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 569.0) internal successors, (3983), 7 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:48,473 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 569.0) internal successors, (3983), 7 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:48,474 INFO L307 CegarLoopForPetriNet]: 546 programPoint places, -7 predicate places. [2023-11-30 00:06:48,474 INFO L500 AbstractCegarLoop]: Abstraction has has 539 places, 533 transitions, 1631 flow [2023-11-30 00:06:48,475 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.5) internal successors, (1947), 6 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:48,475 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:06:48,475 INFO L232 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] [2023-11-30 00:06:48,475 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 00:06:48,475 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-30 00:06:48,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:06:48,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2063772648, now seen corresponding path program 1 times [2023-11-30 00:06:48,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:06:48,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610705494] [2023-11-30 00:06:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:06:48,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:06:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:06:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:06:48,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:06:48,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610705494] [2023-11-30 00:06:48,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610705494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:06:48,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:06:48,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 00:06:48,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681562787] [2023-11-30 00:06:48,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:06:48,706 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 00:06:48,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:06:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 00:06:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 00:06:48,709 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 569 [2023-11-30 00:06:48,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 533 transitions, 1631 flow. Second operand has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:06:48,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:06:48,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 569 [2023-11-30 00:06:48,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:07:22,742 INFO L124 PetriNetUnfolderBase]: 100493/210303 cut-off events. [2023-11-30 00:07:22,742 INFO L125 PetriNetUnfolderBase]: For 38136/47511 co-relation queries the response was YES. [2023-11-30 00:07:23,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531014 conditions, 210303 events. 100493/210303 cut-off events. For 38136/47511 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 2157591 event pairs, 96436 based on Foata normal form. 0/180799 useless extension candidates. Maximal degree in co-relation 529337. Up to 151510 conditions per place. [2023-11-30 00:07:24,625 INFO L140 encePairwiseOnDemand]: 563/569 looper letters, 226 selfloop transitions, 5 changer transitions 0/532 dead transitions. [2023-11-30 00:07:24,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 532 transitions, 2089 flow [2023-11-30 00:07:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 00:07:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 00:07:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2170 transitions. [2023-11-30 00:07:24,630 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.635618043350908 [2023-11-30 00:07:24,630 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2170 transitions. [2023-11-30 00:07:24,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2170 transitions. [2023-11-30 00:07:24,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:07:24,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2170 transitions. [2023-11-30 00:07:24,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.6666666666667) internal successors, (2170), 6 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:07:24,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 569.0) internal successors, (3983), 7 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:07:24,641 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 569.0) internal successors, (3983), 7 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:07:24,643 INFO L307 CegarLoopForPetriNet]: 546 programPoint places, -3 predicate places. [2023-11-30 00:07:24,643 INFO L500 AbstractCegarLoop]: Abstraction has has 543 places, 532 transitions, 2089 flow [2023-11-30 00:07:24,644 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:07:24,644 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:07:24,644 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:07:24,644 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 00:07:24,644 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-30 00:07:24,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:07:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash -988713233, now seen corresponding path program 1 times [2023-11-30 00:07:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:07:24,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625422305] [2023-11-30 00:07:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:07:24,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:07:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:07:24,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:07:24,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:07:24,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625422305] [2023-11-30 00:07:24,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625422305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:07:24,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:07:24,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 00:07:24,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303276697] [2023-11-30 00:07:24,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:07:24,882 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 00:07:24,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:07:24,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 00:07:24,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 00:07:24,884 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 569 [2023-11-30 00:07:24,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 532 transitions, 2089 flow. Second operand has 6 states, 6 states have (on average 326.5) internal successors, (1959), 6 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:07:24,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:07:24,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 569 [2023-11-30 00:07:24,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand