/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:09:45,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:09:45,594 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-VariableLbe.epf [2023-08-25 04:09:45,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:09:45,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:09:45,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:09:45,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:09:45,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:09:45,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:09:45,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:09:45,630 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:09:45,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:09:45,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:09:45,632 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:09:45,632 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:09:45,632 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:09:45,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:09:45,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:09:45,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:09:45,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:09:45,633 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:09:45,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:09:45,634 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:09:45,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:09:45,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:09:45,635 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:09:45,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:09:45,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:09:45,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:09:45,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:09:45,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:09:45,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:09:45,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:09:45,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:09:45,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:09:45,638 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:09:46,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:09:46,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:09:46,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:09:46,041 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:09:46,041 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:09:46,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2023-08-25 04:09:47,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:09:47,429 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:09:47,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2023-08-25 04:09:47,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d7fd89a/e1b4000e0f444ad49ed7fc351f084b9d/FLAG79130831b [2023-08-25 04:09:47,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d7fd89a/e1b4000e0f444ad49ed7fc351f084b9d [2023-08-25 04:09:47,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:09:47,462 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:09:47,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:09:47,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:09:47,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:09:47,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de3fafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47, skipping insertion in model container [2023-08-25 04:09:47,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,498 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:09:47,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:09:47,771 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:09:47,793 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:09:47,794 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:09:47,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:09:47,853 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:09:47,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47 WrapperNode [2023-08-25 04:09:47,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:09:47,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:09:47,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:09:47,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:09:47,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,917 INFO L138 Inliner]: procedures = 170, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 111 [2023-08-25 04:09:47,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:09:47,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:09:47,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:09:47,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:09:47,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:09:47,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:09:47,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:09:47,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:09:47,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (1/1) ... [2023-08-25 04:09:47,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:09:47,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:09:48,014 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) [2023-08-25 04:09:48,017 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 [2023-08-25 04:09:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 04:09:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:09:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:09:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:09:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:09:48,053 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 04:09:48,178 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:09:48,179 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:09:48,478 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:09:48,483 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:09:48,484 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-08-25 04:09:48,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:09:48 BoogieIcfgContainer [2023-08-25 04:09:48,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:09:48,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:09:48,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:09:48,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:09:48,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:09:47" (1/3) ... [2023-08-25 04:09:48,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9e0249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:09:48, skipping insertion in model container [2023-08-25 04:09:48,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:09:47" (2/3) ... [2023-08-25 04:09:48,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9e0249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:09:48, skipping insertion in model container [2023-08-25 04:09:48,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:09:48" (3/3) ... [2023-08-25 04:09:48,492 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2023-08-25 04:09:48,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:09:48,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-25 04:09:48,505 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:09:48,556 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 04:09:48,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 186 transitions, 380 flow [2023-08-25 04:09:48,652 INFO L124 PetriNetUnfolderBase]: 19/246 cut-off events. [2023-08-25 04:09:48,653 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:09:48,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 246 events. 19/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 756 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2023-08-25 04:09:48,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 186 transitions, 380 flow [2023-08-25 04:09:48,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 186 transitions, 380 flow [2023-08-25 04:09:48,665 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:09:48,677 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 186 transitions, 380 flow [2023-08-25 04:09:48,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 186 transitions, 380 flow [2023-08-25 04:09:48,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 186 transitions, 380 flow [2023-08-25 04:09:48,732 INFO L124 PetriNetUnfolderBase]: 19/246 cut-off events. [2023-08-25 04:09:48,733 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:09:48,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 246 events. 19/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 756 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2023-08-25 04:09:48,742 INFO L119 LiptonReduction]: Number of co-enabled transitions 9108 [2023-08-25 04:09:51,565 INFO L134 LiptonReduction]: Checked pairs total: 42775 [2023-08-25 04:09:51,565 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-08-25 04:09:51,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:09:51,579 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3509f93d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:09:51,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-08-25 04:09:51,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:09:51,580 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:09:51,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:09:51,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:51,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:09:51,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-08-25 04:09:51,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash 655, now seen corresponding path program 1 times [2023-08-25 04:09:51,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:51,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145430579] [2023-08-25 04:09:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:51,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:51,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:51,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145430579] [2023-08-25 04:09:51,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145430579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:51,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:51,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:09:51,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324253968] [2023-08-25 04:09:51,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:51,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:09:51,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:51,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:09:51,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:09:51,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 312 [2023-08-25 04:09:51,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 83 transitions, 174 flow. Second operand has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:51,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:51,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 312 [2023-08-25 04:09:51,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:51,810 INFO L124 PetriNetUnfolderBase]: 169/713 cut-off events. [2023-08-25 04:09:51,810 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:09:51,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 713 events. 169/713 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4105 event pairs, 168 based on Foata normal form. 29/654 useless extension candidates. Maximal degree in co-relation 1039. Up to 378 conditions per place. [2023-08-25 04:09:51,816 INFO L140 encePairwiseOnDemand]: 303/312 looper letters, 30 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2023-08-25 04:09:51,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 216 flow [2023-08-25 04:09:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:09:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:09:51,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 381 transitions. [2023-08-25 04:09:51,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6105769230769231 [2023-08-25 04:09:51,828 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 381 transitions. [2023-08-25 04:09:51,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 381 transitions. [2023-08-25 04:09:51,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:51,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 381 transitions. [2023-08-25 04:09:51,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:51,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:51,835 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:51,836 INFO L175 Difference]: Start difference. First operand has 77 places, 83 transitions, 174 flow. Second operand 2 states and 381 transitions. [2023-08-25 04:09:51,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 216 flow [2023-08-25 04:09:51,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 74 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:51,840 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 156 flow [2023-08-25 04:09:51,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2023-08-25 04:09:51,844 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2023-08-25 04:09:51,844 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 156 flow [2023-08-25 04:09:51,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:51,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:51,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 04:09:51,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:09:51,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-08-25 04:09:51,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash 649045, now seen corresponding path program 1 times [2023-08-25 04:09:51,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:51,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513073750] [2023-08-25 04:09:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:51,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:51,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:51,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513073750] [2023-08-25 04:09:51,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513073750] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:51,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:51,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:09:51,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348748021] [2023-08-25 04:09:51,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:51,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:09:51,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:51,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:09:51,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:09:51,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 312 [2023-08-25 04:09:51,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:51,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:51,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 312 [2023-08-25 04:09:51,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:52,010 INFO L124 PetriNetUnfolderBase]: 168/713 cut-off events. [2023-08-25 04:09:52,010 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:09:52,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 713 events. 168/713 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4020 event pairs, 143 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 1087. Up to 353 conditions per place. [2023-08-25 04:09:52,013 INFO L140 encePairwiseOnDemand]: 309/312 looper letters, 43 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-08-25 04:09:52,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 89 transitions, 276 flow [2023-08-25 04:09:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:09:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:09:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2023-08-25 04:09:52,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5715811965811965 [2023-08-25 04:09:52,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2023-08-25 04:09:52,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2023-08-25 04:09:52,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:52,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2023-08-25 04:09:52,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,019 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 156 flow. Second operand 3 states and 535 transitions. [2023-08-25 04:09:52,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 89 transitions, 276 flow [2023-08-25 04:09:52,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 89 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:52,021 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 164 flow [2023-08-25 04:09:52,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2023-08-25 04:09:52,022 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2023-08-25 04:09:52,022 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 164 flow [2023-08-25 04:09:52,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:52,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:09:52,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:09:52,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-08-25 04:09:52,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 623754625, now seen corresponding path program 1 times [2023-08-25 04:09:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:52,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760964537] [2023-08-25 04:09:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:52,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:52,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:52,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760964537] [2023-08-25 04:09:52,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760964537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:52,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:52,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:09:52,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703329121] [2023-08-25 04:09:52,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:52,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:09:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:09:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:09:52,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 312 [2023-08-25 04:09:52,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:52,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 312 [2023-08-25 04:09:52,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:52,135 INFO L124 PetriNetUnfolderBase]: 208/775 cut-off events. [2023-08-25 04:09:52,135 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-08-25 04:09:52,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1289 conditions, 775 events. 208/775 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4236 event pairs, 165 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 1283. Up to 447 conditions per place. [2023-08-25 04:09:52,137 INFO L140 encePairwiseOnDemand]: 306/312 looper letters, 35 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2023-08-25 04:09:52,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 243 flow [2023-08-25 04:09:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:09:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:09:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2023-08-25 04:09:52,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5438034188034188 [2023-08-25 04:09:52,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2023-08-25 04:09:52,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2023-08-25 04:09:52,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:52,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2023-08-25 04:09:52,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,142 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 164 flow. Second operand 3 states and 509 transitions. [2023-08-25 04:09:52,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 243 flow [2023-08-25 04:09:52,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:09:52,144 INFO L231 Difference]: Finished difference. Result has 77 places, 72 transitions, 168 flow [2023-08-25 04:09:52,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=77, PETRI_TRANSITIONS=72} [2023-08-25 04:09:52,145 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2023-08-25 04:09:52,145 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 72 transitions, 168 flow [2023-08-25 04:09:52,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:52,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:52,145 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 04:09:52,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:09:52,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-08-25 04:09:52,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2138422489, now seen corresponding path program 1 times [2023-08-25 04:09:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841303825] [2023-08-25 04:09:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:52,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:09:52,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:09:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:09:52,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:09:52,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:09:52,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2023-08-25 04:09:52,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (12 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2023-08-25 04:09:52,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2023-08-25 04:09:52,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2023-08-25 04:09:52,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:09:52,188 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 04:09:52,189 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:09:52,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 04:09:52,210 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:09:52,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 257 transitions, 532 flow [2023-08-25 04:09:52,242 INFO L124 PetriNetUnfolderBase]: 34/408 cut-off events. [2023-08-25 04:09:52,242 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:09:52,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 408 events. 34/408 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1633 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2023-08-25 04:09:52,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 257 transitions, 532 flow [2023-08-25 04:09:52,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 257 transitions, 532 flow [2023-08-25 04:09:52,247 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:09:52,247 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 257 transitions, 532 flow [2023-08-25 04:09:52,247 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 257 transitions, 532 flow [2023-08-25 04:09:52,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 257 transitions, 532 flow [2023-08-25 04:09:52,278 INFO L124 PetriNetUnfolderBase]: 34/408 cut-off events. [2023-08-25 04:09:52,278 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:09:52,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 408 events. 34/408 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1633 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2023-08-25 04:09:52,291 INFO L119 LiptonReduction]: Number of co-enabled transitions 29256 [2023-08-25 04:09:55,609 INFO L134 LiptonReduction]: Checked pairs total: 152996 [2023-08-25 04:09:55,610 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-08-25 04:09:55,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:09:55,630 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3509f93d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:09:55,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-25 04:09:55,631 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:09:55,631 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-25 04:09:55,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:09:55,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:55,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:09:55,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 04:09:55,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1129, now seen corresponding path program 1 times [2023-08-25 04:09:55,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:55,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825930792] [2023-08-25 04:09:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:55,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:55,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:55,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825930792] [2023-08-25 04:09:55,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825930792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:55,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:55,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:09:55,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953722709] [2023-08-25 04:09:55,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:55,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:09:55,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:55,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:09:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:09:55,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 403 [2023-08-25 04:09:55,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 135 transitions, 288 flow. Second operand has 2 states, 2 states have (on average 234.5) internal successors, (469), 2 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:55,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:55,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 403 [2023-08-25 04:09:55,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:56,720 INFO L124 PetriNetUnfolderBase]: 6273/15755 cut-off events. [2023-08-25 04:09:56,720 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-08-25 04:09:56,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25757 conditions, 15755 events. 6273/15755 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 151364 event pairs, 6255 based on Foata normal form. 1660/15692 useless extension candidates. Maximal degree in co-relation 16550. Up to 9903 conditions per place. [2023-08-25 04:09:56,787 INFO L140 encePairwiseOnDemand]: 387/403 looper letters, 48 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-25 04:09:56,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 352 flow [2023-08-25 04:09:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:09:56,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:09:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 532 transitions. [2023-08-25 04:09:56,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6600496277915633 [2023-08-25 04:09:56,789 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 532 transitions. [2023-08-25 04:09:56,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 532 transitions. [2023-08-25 04:09:56,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:56,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 532 transitions. [2023-08-25 04:09:56,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:56,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:56,792 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:56,792 INFO L175 Difference]: Start difference. First operand has 123 places, 135 transitions, 288 flow. Second operand 2 states and 532 transitions. [2023-08-25 04:09:56,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 352 flow [2023-08-25 04:09:56,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 119 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:56,797 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 256 flow [2023-08-25 04:09:56,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2023-08-25 04:09:56,798 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2023-08-25 04:09:56,799 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 256 flow [2023-08-25 04:09:56,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.5) internal successors, (469), 2 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:56,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:56,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 04:09:56,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:09:56,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 04:09:56,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:56,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1119853, now seen corresponding path program 1 times [2023-08-25 04:09:56,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:56,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354707350] [2023-08-25 04:09:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:56,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:56,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:56,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354707350] [2023-08-25 04:09:56,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354707350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:56,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:56,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:09:56,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545282985] [2023-08-25 04:09:56,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:56,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:09:56,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:56,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:09:56,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:09:56,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 403 [2023-08-25 04:09:56,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:56,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:56,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 403 [2023-08-25 04:09:56,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:58,243 INFO L124 PetriNetUnfolderBase]: 6272/15725 cut-off events. [2023-08-25 04:09:58,244 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-08-25 04:09:58,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25720 conditions, 15725 events. 6272/15725 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 151380 event pairs, 5360 based on Foata normal form. 0/13990 useless extension candidates. Maximal degree in co-relation 25715. Up to 9877 conditions per place. [2023-08-25 04:09:58,312 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 63 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2023-08-25 04:09:58,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 136 transitions, 420 flow [2023-08-25 04:09:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:09:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:09:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2023-08-25 04:09:58,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2023-08-25 04:09:58,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2023-08-25 04:09:58,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2023-08-25 04:09:58,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:58,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2023-08-25 04:09:58,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:58,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:58,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:58,321 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 256 flow. Second operand 3 states and 744 transitions. [2023-08-25 04:09:58,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 136 transitions, 420 flow [2023-08-25 04:09:58,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 136 transitions, 420 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:09:58,324 INFO L231 Difference]: Finished difference. Result has 126 places, 120 transitions, 268 flow [2023-08-25 04:09:58,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=126, PETRI_TRANSITIONS=120} [2023-08-25 04:09:58,325 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 3 predicate places. [2023-08-25 04:09:58,325 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 120 transitions, 268 flow [2023-08-25 04:09:58,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:58,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:58,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:09:58,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:09:58,326 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 04:09:58,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:58,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1076133854, now seen corresponding path program 1 times [2023-08-25 04:09:58,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:58,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233444929] [2023-08-25 04:09:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:58,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:58,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233444929] [2023-08-25 04:09:58,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233444929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:58,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:58,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:09:58,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720585824] [2023-08-25 04:09:58,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:58,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:09:58,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:58,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:09:58,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:09:58,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 403 [2023-08-25 04:09:58,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 120 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:58,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:58,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 403 [2023-08-25 04:09:58,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:59,575 INFO L124 PetriNetUnfolderBase]: 7650/17239 cut-off events. [2023-08-25 04:09:59,576 INFO L125 PetriNetUnfolderBase]: For 706/706 co-relation queries the response was YES. [2023-08-25 04:09:59,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29992 conditions, 17239 events. 7650/17239 cut-off events. For 706/706 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 157160 event pairs, 6745 based on Foata normal form. 0/16039 useless extension candidates. Maximal degree in co-relation 29985. Up to 12017 conditions per place. [2023-08-25 04:09:59,674 INFO L140 encePairwiseOnDemand]: 394/403 looper letters, 56 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2023-08-25 04:09:59,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 400 flow [2023-08-25 04:09:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:09:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:09:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2023-08-25 04:09:59,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5806451612903226 [2023-08-25 04:09:59,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 702 transitions. [2023-08-25 04:09:59,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 702 transitions. [2023-08-25 04:09:59,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:59,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 702 transitions. [2023-08-25 04:09:59,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:59,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:59,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:59,680 INFO L175 Difference]: Start difference. First operand has 126 places, 120 transitions, 268 flow. Second operand 3 states and 702 transitions. [2023-08-25 04:09:59,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 400 flow [2023-08-25 04:09:59,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 121 transitions, 397 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:09:59,683 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 277 flow [2023-08-25 04:09:59,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2023-08-25 04:09:59,684 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2023-08-25 04:09:59,684 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 277 flow [2023-08-25 04:09:59,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:09:59,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:59,685 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 04:09:59,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:09:59,685 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 04:09:59,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1392901277, now seen corresponding path program 1 times [2023-08-25 04:09:59,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:59,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786165213] [2023-08-25 04:09:59,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:59,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:09:59,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:09:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:09:59,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:09:59,707 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-25 04:09:59,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (18 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-08-25 04:09:59,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-25 04:09:59,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-25 04:09:59,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:09:59,710 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 04:09:59,711 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:09:59,711 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 04:09:59,743 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:09:59,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 328 transitions, 686 flow [2023-08-25 04:09:59,814 INFO L124 PetriNetUnfolderBase]: 54/615 cut-off events. [2023-08-25 04:09:59,815 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:09:59,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 615 events. 54/615 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2755 event pairs, 1 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 416. Up to 16 conditions per place. [2023-08-25 04:09:59,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 328 transitions, 686 flow [2023-08-25 04:09:59,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 328 transitions, 686 flow [2023-08-25 04:09:59,826 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:09:59,826 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 308 places, 328 transitions, 686 flow [2023-08-25 04:09:59,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 308 places, 328 transitions, 686 flow [2023-08-25 04:09:59,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 328 transitions, 686 flow [2023-08-25 04:09:59,889 INFO L124 PetriNetUnfolderBase]: 54/615 cut-off events. [2023-08-25 04:09:59,889 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:09:59,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 615 events. 54/615 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2755 event pairs, 1 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 416. Up to 16 conditions per place. [2023-08-25 04:09:59,912 INFO L119 LiptonReduction]: Number of co-enabled transitions 58788 [2023-08-25 04:10:02,486 INFO L134 LiptonReduction]: Checked pairs total: 324822 [2023-08-25 04:10:02,487 INFO L136 LiptonReduction]: Total number of compositions: 174 [2023-08-25 04:10:02,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:02,489 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3509f93d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:02,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-25 04:10:02,490 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:02,490 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:10:02,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:02,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:02,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:10:02,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 04:10:02,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:02,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2023-08-25 04:10:02,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:02,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682621081] [2023-08-25 04:10:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:10:02,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682621081] [2023-08-25 04:10:02,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682621081] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:02,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:02,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:10:02,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704853344] [2023-08-25 04:10:02,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:02,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:10:02,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:10:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:10:02,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 502 [2023-08-25 04:10:02,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 183 transitions, 396 flow. Second operand has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:02,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:02,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 502 [2023-08-25 04:10:02,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:29,076 INFO L124 PetriNetUnfolderBase]: 156878/304390 cut-off events. [2023-08-25 04:10:29,076 INFO L125 PetriNetUnfolderBase]: For 3029/3029 co-relation queries the response was YES. [2023-08-25 04:10:29,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522603 conditions, 304390 events. 156878/304390 cut-off events. For 3029/3029 co-relation queries the response was YES. Maximal size of possible extension queue 5181. Compared 3616900 event pairs, 156571 based on Foata normal form. 30140/303530 useless extension candidates. Maximal degree in co-relation 187328. Up to 216124 conditions per place. [2023-08-25 04:10:31,342 INFO L140 encePairwiseOnDemand]: 481/502 looper letters, 65 selfloop transitions, 0 changer transitions 0/162 dead transitions. [2023-08-25 04:10:31,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 162 transitions, 484 flow [2023-08-25 04:10:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:10:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:10:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 680 transitions. [2023-08-25 04:10:31,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6772908366533864 [2023-08-25 04:10:31,344 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 680 transitions. [2023-08-25 04:10:31,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 680 transitions. [2023-08-25 04:10:31,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:31,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 680 transitions. [2023-08-25 04:10:31,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:31,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:31,348 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:31,348 INFO L175 Difference]: Start difference. First operand has 167 places, 183 transitions, 396 flow. Second operand 2 states and 680 transitions. [2023-08-25 04:10:31,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 162 transitions, 484 flow [2023-08-25 04:10:31,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 162 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:31,354 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 354 flow [2023-08-25 04:10:31,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=354, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2023-08-25 04:10:31,354 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, 0 predicate places. [2023-08-25 04:10:31,355 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 354 flow [2023-08-25 04:10:31,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:31,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:31,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 04:10:31,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 04:10:31,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 04:10:31,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:31,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1688650, now seen corresponding path program 1 times [2023-08-25 04:10:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:31,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436649866] [2023-08-25 04:10:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:31,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:10:31,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:31,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436649866] [2023-08-25 04:10:31,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436649866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:31,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:31,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:31,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796693282] [2023-08-25 04:10:31,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:31,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:31,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:31,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 502 [2023-08-25 04:10:31,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:31,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:31,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 502 [2023-08-25 04:10:31,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:55,237 INFO L124 PetriNetUnfolderBase]: 156877/304450 cut-off events. [2023-08-25 04:10:55,238 INFO L125 PetriNetUnfolderBase]: For 3015/3015 co-relation queries the response was YES. [2023-08-25 04:10:56,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522656 conditions, 304450 events. 156877/304450 cut-off events. For 3015/3015 co-relation queries the response was YES. Maximal size of possible extension queue 5192. Compared 3618677 event pairs, 142044 based on Foata normal form. 0/273227 useless extension candidates. Maximal degree in co-relation 522650. Up to 216098 conditions per place. [2023-08-25 04:10:57,610 INFO L140 encePairwiseOnDemand]: 499/502 looper letters, 80 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2023-08-25 04:10:57,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 179 transitions, 552 flow [2023-08-25 04:10:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2023-08-25 04:10:57,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6308100929614874 [2023-08-25 04:10:57,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 950 transitions. [2023-08-25 04:10:57,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 950 transitions. [2023-08-25 04:10:57,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:57,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 950 transitions. [2023-08-25 04:10:57,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:57,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:57,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:57,618 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 354 flow. Second operand 3 states and 950 transitions. [2023-08-25 04:10:57,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 179 transitions, 552 flow [2023-08-25 04:10:57,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 179 transitions, 552 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:57,622 INFO L231 Difference]: Finished difference. Result has 170 places, 163 transitions, 366 flow [2023-08-25 04:10:57,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=170, PETRI_TRANSITIONS=163} [2023-08-25 04:10:57,623 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, 3 predicate places. [2023-08-25 04:10:57,623 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 163 transitions, 366 flow [2023-08-25 04:10:57,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:57,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:57,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:57,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 04:10:57,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 04:10:57,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:57,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1622564026, now seen corresponding path program 1 times [2023-08-25 04:10:57,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:57,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23613756] [2023-08-25 04:10:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:57,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:10:57,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:57,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23613756] [2023-08-25 04:10:57,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23613756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:57,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:57,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:57,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668584889] [2023-08-25 04:10:57,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:57,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:57,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:57,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:57,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:57,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 502 [2023-08-25 04:10:57,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 163 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:10:57,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:57,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 502 [2023-08-25 04:10:57,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:11:26,758 INFO L124 PetriNetUnfolderBase]: 202535/353920 cut-off events. [2023-08-25 04:11:26,760 INFO L125 PetriNetUnfolderBase]: For 13714/13714 co-relation queries the response was YES. [2023-08-25 04:11:27,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644929 conditions, 353920 events. 202535/353920 cut-off events. For 13714/13714 co-relation queries the response was YES. Maximal size of possible extension queue 5888. Compared 3823449 event pairs, 186730 based on Foata normal form. 0/332324 useless extension candidates. Maximal degree in co-relation 644921. Up to 278350 conditions per place. [2023-08-25 04:11:29,075 INFO L140 encePairwiseOnDemand]: 490/502 looper letters, 75 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2023-08-25 04:11:29,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 164 transitions, 545 flow [2023-08-25 04:11:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:11:29,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:11:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 895 transitions. [2023-08-25 04:11:29,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5942895086321381 [2023-08-25 04:11:29,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 895 transitions. [2023-08-25 04:11:29,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 895 transitions. [2023-08-25 04:11:29,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:11:29,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 895 transitions. [2023-08-25 04:11:29,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:11:29,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:11:29,095 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:11:29,095 INFO L175 Difference]: Start difference. First operand has 170 places, 163 transitions, 366 flow. Second operand 3 states and 895 transitions. [2023-08-25 04:11:29,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 164 transitions, 545 flow [2023-08-25 04:11:29,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 164 transitions, 542 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:11:29,133 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 378 flow [2023-08-25 04:11:29,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2023-08-25 04:11:29,134 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -3 predicate places. [2023-08-25 04:11:29,134 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 378 flow [2023-08-25 04:11:29,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:11:29,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:11:29,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:11:29,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:11:29,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 04:11:29,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:11:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash -808602926, now seen corresponding path program 1 times [2023-08-25 04:11:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:11:29,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054097494] [2023-08-25 04:11:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:11:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:11:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:11:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:11:29,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:11:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054097494] [2023-08-25 04:11:29,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054097494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:11:29,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:11:29,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:11:29,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073271718] [2023-08-25 04:11:29,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:11:29,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:11:29,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:11:29,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:11:29,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:11:29,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 502 [2023-08-25 04:11:29,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:11:29,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:11:29,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 502 [2023-08-25 04:11:29,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand