/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/weaver/chl-node-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:02:37,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:02:37,634 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 05:02:37,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:02:37,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:02:37,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:02:37,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:02:37,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:02:37,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:02:37,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:02:37,672 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:02:37,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:02:37,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:02:37,674 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:02:37,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:02:37,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:02:37,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:02:37,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:02:37,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:02:37,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:02:37,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:02:37,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:02:37,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:02:37,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:02:37,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:02:37,678 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:02:37,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:02:37,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:02:37,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:02:37,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:02:37,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:02:37,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:02:37,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:02:37,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:02:37,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:02:37,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:02:37,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:02:38,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:02:38,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:02:38,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:02:38,023 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:02:38,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-08-25 05:02:39,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:02:39,363 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:02:39,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-08-25 05:02:39,377 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81b237a1/d34ba12868e740f09d72c23c815f5e22/FLAGef4b73a99 [2023-08-25 05:02:39,393 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81b237a1/d34ba12868e740f09d72c23c815f5e22 [2023-08-25 05:02:39,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:02:39,400 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:02:39,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:02:39,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:02:39,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:02:39,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce16e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39, skipping insertion in model container [2023-08-25 05:02:39,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,442 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:02:39,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:02:39,710 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:02:39,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:02:39,759 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:02:39,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39 WrapperNode [2023-08-25 05:02:39,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:02:39,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:02:39,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:02:39,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:02:39,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,822 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 825 [2023-08-25 05:02:39,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:02:39,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:02:39,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:02:39,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:02:39,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:02:39,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:02:39,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:02:39,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:02:39,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (1/1) ... [2023-08-25 05:02:39,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:02:39,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:02:39,930 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 05:02:39,934 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 05:02:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:02:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:02:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:02:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:02:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:02:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:02:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:02:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:02:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:02:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:02:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:02:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 05:02:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:02:39,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:02:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:02:39,963 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 05:02:40,100 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:02:40,103 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:02:41,110 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:02:41,127 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:02:41,128 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-25 05:02:41,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:02:41 BoogieIcfgContainer [2023-08-25 05:02:41,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:02:41,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:02:41,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:02:41,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:02:41,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:02:39" (1/3) ... [2023-08-25 05:02:41,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312ba3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:02:41, skipping insertion in model container [2023-08-25 05:02:41,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:02:39" (2/3) ... [2023-08-25 05:02:41,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312ba3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:02:41, skipping insertion in model container [2023-08-25 05:02:41,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:02:41" (3/3) ... [2023-08-25 05:02:41,139 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-08-25 05:02:41,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:02:41,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 120 error locations. [2023-08-25 05:02:41,155 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:02:41,305 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 05:02:41,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 982 places, 1020 transitions, 2064 flow [2023-08-25 05:02:41,786 INFO L124 PetriNetUnfolderBase]: 48/1017 cut-off events. [2023-08-25 05:02:41,786 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:02:41,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 1017 events. 48/1017 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2162 event pairs, 0 based on Foata normal form. 0/849 useless extension candidates. Maximal degree in co-relation 801. Up to 2 conditions per place. [2023-08-25 05:02:41,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 982 places, 1020 transitions, 2064 flow [2023-08-25 05:02:41,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 968 places, 1006 transitions, 2030 flow [2023-08-25 05:02:41,835 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:02:41,846 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 968 places, 1006 transitions, 2030 flow [2023-08-25 05:02:41,850 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 968 places, 1006 transitions, 2030 flow [2023-08-25 05:02:41,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 968 places, 1006 transitions, 2030 flow [2023-08-25 05:02:42,098 INFO L124 PetriNetUnfolderBase]: 48/1006 cut-off events. [2023-08-25 05:02:42,099 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:02:42,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 1006 events. 48/1006 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2148 event pairs, 0 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 801. Up to 2 conditions per place. [2023-08-25 05:02:42,153 INFO L119 LiptonReduction]: Number of co-enabled transitions 148920 [2023-08-25 05:03:10,057 INFO L134 LiptonReduction]: Checked pairs total: 1406401 [2023-08-25 05:03:10,057 INFO L136 LiptonReduction]: Total number of compositions: 1058 [2023-08-25 05:03:10,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:03:10,074 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;@5609a269, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:03:10,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 198 error locations. [2023-08-25 05:03:10,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:03:10,076 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:03:10,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:03:10,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:10,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:03:10,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:10,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:10,081 INFO L85 PathProgramCache]: Analyzing trace with hash 3690, now seen corresponding path program 1 times [2023-08-25 05:03:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:10,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340536905] [2023-08-25 05:03:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:10,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:10,184 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 05:03:10,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:10,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340536905] [2023-08-25 05:03:10,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340536905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:10,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:10,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:03:10,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674885838] [2023-08-25 05:03:10,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:10,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:03:10,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:10,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:03:10,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:03:10,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 984 out of 2078 [2023-08-25 05:03:10,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 322 transitions, 662 flow. Second operand has 2 states, 2 states have (on average 984.5) internal successors, (1969), 2 states have internal predecessors, (1969), 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 05:03:10,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:10,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 984 of 2078 [2023-08-25 05:03:10,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:15,263 INFO L124 PetriNetUnfolderBase]: 11567/38387 cut-off events. [2023-08-25 05:03:15,263 INFO L125 PetriNetUnfolderBase]: For 539/539 co-relation queries the response was YES. [2023-08-25 05:03:15,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54756 conditions, 38387 events. 11567/38387 cut-off events. For 539/539 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 489028 event pairs, 9493 based on Foata normal form. 2100/32332 useless extension candidates. Maximal degree in co-relation 51306. Up to 15933 conditions per place. [2023-08-25 05:03:15,598 INFO L140 encePairwiseOnDemand]: 2015/2078 looper letters, 66 selfloop transitions, 0 changer transitions 0/259 dead transitions. [2023-08-25 05:03:15,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 259 transitions, 668 flow [2023-08-25 05:03:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:03:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:03:15,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2097 transitions. [2023-08-25 05:03:15,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5045717035611165 [2023-08-25 05:03:15,622 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2097 transitions. [2023-08-25 05:03:15,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2097 transitions. [2023-08-25 05:03:15,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:15,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2097 transitions. [2023-08-25 05:03:15,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1048.5) internal successors, (2097), 2 states have internal predecessors, (2097), 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 05:03:15,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2078.0) internal successors, (6234), 3 states have internal predecessors, (6234), 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 05:03:15,651 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2078.0) internal successors, (6234), 3 states have internal predecessors, (6234), 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 05:03:15,653 INFO L175 Difference]: Start difference. First operand has 319 places, 322 transitions, 662 flow. Second operand 2 states and 2097 transitions. [2023-08-25 05:03:15,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 259 transitions, 668 flow [2023-08-25 05:03:15,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 259 transitions, 656 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 05:03:15,673 INFO L231 Difference]: Finished difference. Result has 252 places, 259 transitions, 524 flow [2023-08-25 05:03:15,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=524, PETRI_PLACES=252, PETRI_TRANSITIONS=259} [2023-08-25 05:03:15,678 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -67 predicate places. [2023-08-25 05:03:15,678 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 259 transitions, 524 flow [2023-08-25 05:03:15,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 984.5) internal successors, (1969), 2 states have internal predecessors, (1969), 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 05:03:15,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:15,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:15,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:03:15,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:15,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:15,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1886722231, now seen corresponding path program 1 times [2023-08-25 05:03:15,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:15,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272337914] [2023-08-25 05:03:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:15,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:15,964 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 05:03:15,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:15,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272337914] [2023-08-25 05:03:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272337914] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:15,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:03:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478003299] [2023-08-25 05:03:15,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:15,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:03:15,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:15,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:03:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:03:15,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 969 out of 2078 [2023-08-25 05:03:15,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 259 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 972.3333333333334) internal successors, (2917), 3 states have internal predecessors, (2917), 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 05:03:15,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:15,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 969 of 2078 [2023-08-25 05:03:15,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:20,835 INFO L124 PetriNetUnfolderBase]: 18551/60653 cut-off events. [2023-08-25 05:03:20,836 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2023-08-25 05:03:20,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86469 conditions, 60653 events. 18551/60653 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 798746 event pairs, 5608 based on Foata normal form. 0/49927 useless extension candidates. Maximal degree in co-relation 86466. Up to 25545 conditions per place. [2023-08-25 05:03:21,454 INFO L140 encePairwiseOnDemand]: 2072/2078 looper letters, 95 selfloop transitions, 2 changer transitions 0/280 dead transitions. [2023-08-25 05:03:21,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 280 transitions, 762 flow [2023-08-25 05:03:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:03:21,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:03:21,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3008 transitions. [2023-08-25 05:03:21,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825152390118704 [2023-08-25 05:03:21,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3008 transitions. [2023-08-25 05:03:21,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3008 transitions. [2023-08-25 05:03:21,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:21,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3008 transitions. [2023-08-25 05:03:21,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1002.6666666666666) internal successors, (3008), 3 states have internal predecessors, (3008), 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 05:03:21,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:21,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:21,487 INFO L175 Difference]: Start difference. First operand has 252 places, 259 transitions, 524 flow. Second operand 3 states and 3008 transitions. [2023-08-25 05:03:21,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 280 transitions, 762 flow [2023-08-25 05:03:21,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 280 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:03:21,494 INFO L231 Difference]: Finished difference. Result has 251 places, 257 transitions, 530 flow [2023-08-25 05:03:21,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2023-08-25 05:03:21,496 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -68 predicate places. [2023-08-25 05:03:21,496 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 530 flow [2023-08-25 05:03:21,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 972.3333333333334) internal successors, (2917), 3 states have internal predecessors, (2917), 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 05:03:21,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:21,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:21,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:03:21,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:21,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash -663792213, now seen corresponding path program 1 times [2023-08-25 05:03:21,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:21,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257301392] [2023-08-25 05:03:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:21,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:21,619 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 05:03:21,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:21,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257301392] [2023-08-25 05:03:21,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257301392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:21,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:21,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:03:21,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310280430] [2023-08-25 05:03:21,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:21,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:03:21,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:21,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:03:21,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:03:21,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 951 out of 2078 [2023-08-25 05:03:21,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 257 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 954.3333333333334) internal successors, (2863), 3 states have internal predecessors, (2863), 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 05:03:21,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:21,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 951 of 2078 [2023-08-25 05:03:21,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:28,020 INFO L124 PetriNetUnfolderBase]: 28071/80878 cut-off events. [2023-08-25 05:03:28,020 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2023-08-25 05:03:28,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120217 conditions, 80878 events. 28071/80878 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 1693. Compared 1054086 event pairs, 24328 based on Foata normal form. 0/68045 useless extension candidates. Maximal degree in co-relation 120213. Up to 39023 conditions per place. [2023-08-25 05:03:28,810 INFO L140 encePairwiseOnDemand]: 2071/2078 looper letters, 77 selfloop transitions, 1 changer transitions 0/251 dead transitions. [2023-08-25 05:03:28,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 251 transitions, 674 flow [2023-08-25 05:03:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:03:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:03:28,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2937 transitions. [2023-08-25 05:03:28,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47112608277189605 [2023-08-25 05:03:28,818 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2937 transitions. [2023-08-25 05:03:28,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2937 transitions. [2023-08-25 05:03:28,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:28,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2937 transitions. [2023-08-25 05:03:28,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 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 05:03:28,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:28,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:28,839 INFO L175 Difference]: Start difference. First operand has 251 places, 257 transitions, 530 flow. Second operand 3 states and 2937 transitions. [2023-08-25 05:03:28,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 251 transitions, 674 flow [2023-08-25 05:03:28,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 251 transitions, 674 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:03:28,843 INFO L231 Difference]: Finished difference. Result has 247 places, 251 transitions, 520 flow [2023-08-25 05:03:28,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=247, PETRI_TRANSITIONS=251} [2023-08-25 05:03:28,845 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -72 predicate places. [2023-08-25 05:03:28,845 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 251 transitions, 520 flow [2023-08-25 05:03:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 954.3333333333334) internal successors, (2863), 3 states have internal predecessors, (2863), 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 05:03:28,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:28,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:28,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:03:28,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:28,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2025256754, now seen corresponding path program 1 times [2023-08-25 05:03:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:28,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337764632] [2023-08-25 05:03:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:28,937 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 05:03:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337764632] [2023-08-25 05:03:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337764632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:28,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:28,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:03:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512216153] [2023-08-25 05:03:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:28,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:03:28,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:28,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:03:28,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:03:28,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 969 out of 2078 [2023-08-25 05:03:28,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 251 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 973.6666666666666) internal successors, (2921), 3 states have internal predecessors, (2921), 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 05:03:28,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:28,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 969 of 2078 [2023-08-25 05:03:28,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:33,368 INFO L124 PetriNetUnfolderBase]: 17448/55328 cut-off events. [2023-08-25 05:03:33,368 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2023-08-25 05:03:33,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79687 conditions, 55328 events. 17448/55328 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 1265. Compared 719602 event pairs, 11048 based on Foata normal form. 0/46028 useless extension candidates. Maximal degree in co-relation 79682. Up to 23903 conditions per place. [2023-08-25 05:03:33,721 INFO L140 encePairwiseOnDemand]: 2072/2078 looper letters, 89 selfloop transitions, 2 changer transitions 0/266 dead transitions. [2023-08-25 05:03:33,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 266 transitions, 734 flow [2023-08-25 05:03:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:03:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:03:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3002 transitions. [2023-08-25 05:03:33,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4815527751042669 [2023-08-25 05:03:33,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3002 transitions. [2023-08-25 05:03:33,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3002 transitions. [2023-08-25 05:03:33,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:33,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3002 transitions. [2023-08-25 05:03:33,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1000.6666666666666) internal successors, (3002), 3 states have internal predecessors, (3002), 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 05:03:33,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:33,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:33,745 INFO L175 Difference]: Start difference. First operand has 247 places, 251 transitions, 520 flow. Second operand 3 states and 3002 transitions. [2023-08-25 05:03:33,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 266 transitions, 734 flow [2023-08-25 05:03:33,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 266 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:03:33,751 INFO L231 Difference]: Finished difference. Result has 245 places, 249 transitions, 525 flow [2023-08-25 05:03:33,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=245, PETRI_TRANSITIONS=249} [2023-08-25 05:03:33,752 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -74 predicate places. [2023-08-25 05:03:33,752 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 249 transitions, 525 flow [2023-08-25 05:03:33,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 973.6666666666666) internal successors, (2921), 3 states have internal predecessors, (2921), 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 05:03:33,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:33,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:33,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:03:33,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:33,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash 651637716, now seen corresponding path program 1 times [2023-08-25 05:03:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190311220] [2023-08-25 05:03:33,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:33,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:33,820 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 05:03:33,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:33,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190311220] [2023-08-25 05:03:33,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190311220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:33,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:03:33,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111542261] [2023-08-25 05:03:33,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:33,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:03:33,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:03:33,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:03:33,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 951 out of 2078 [2023-08-25 05:03:33,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 249 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 955.6666666666666) internal successors, (2867), 3 states have internal predecessors, (2867), 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 05:03:33,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:33,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 951 of 2078 [2023-08-25 05:03:33,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:39,340 INFO L124 PetriNetUnfolderBase]: 24243/70042 cut-off events. [2023-08-25 05:03:39,340 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2023-08-25 05:03:39,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104511 conditions, 70042 events. 24243/70042 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 1607. Compared 914475 event pairs, 20584 based on Foata normal form. 0/60193 useless extension candidates. Maximal degree in co-relation 104506. Up to 33701 conditions per place. [2023-08-25 05:03:39,984 INFO L140 encePairwiseOnDemand]: 2071/2078 looper letters, 78 selfloop transitions, 1 changer transitions 0/243 dead transitions. [2023-08-25 05:03:39,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 243 transitions, 671 flow [2023-08-25 05:03:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:03:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:03:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2937 transitions. [2023-08-25 05:03:39,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47112608277189605 [2023-08-25 05:03:39,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2937 transitions. [2023-08-25 05:03:39,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2937 transitions. [2023-08-25 05:03:39,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:39,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2937 transitions. [2023-08-25 05:03:40,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 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 05:03:40,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:40,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:40,010 INFO L175 Difference]: Start difference. First operand has 245 places, 249 transitions, 525 flow. Second operand 3 states and 2937 transitions. [2023-08-25 05:03:40,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 243 transitions, 671 flow [2023-08-25 05:03:40,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 243 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:03:40,016 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 515 flow [2023-08-25 05:03:40,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2023-08-25 05:03:40,018 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -78 predicate places. [2023-08-25 05:03:40,019 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 515 flow [2023-08-25 05:03:40,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 955.6666666666666) internal successors, (2867), 3 states have internal predecessors, (2867), 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 05:03:40,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:40,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:40,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:03:40,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:40,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:40,021 INFO L85 PathProgramCache]: Analyzing trace with hash -512978283, now seen corresponding path program 1 times [2023-08-25 05:03:40,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:40,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452222762] [2023-08-25 05:03:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:40,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:40,127 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 05:03:40,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:40,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452222762] [2023-08-25 05:03:40,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452222762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:40,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:40,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:03:40,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269790258] [2023-08-25 05:03:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:40,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:03:40,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:40,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:03:40,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:03:40,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 930 out of 2078 [2023-08-25 05:03:40,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 934.3333333333334) internal successors, (2803), 3 states have internal predecessors, (2803), 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 05:03:40,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:40,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 930 of 2078 [2023-08-25 05:03:40,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:43,460 INFO L124 PetriNetUnfolderBase]: 12489/40562 cut-off events. [2023-08-25 05:03:43,460 INFO L125 PetriNetUnfolderBase]: For 503/503 co-relation queries the response was YES. [2023-08-25 05:03:43,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58522 conditions, 40562 events. 12489/40562 cut-off events. For 503/503 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 513900 event pairs, 10222 based on Foata normal form. 0/33738 useless extension candidates. Maximal degree in co-relation 58516. Up to 17376 conditions per place. [2023-08-25 05:03:43,902 INFO L140 encePairwiseOnDemand]: 2075/2078 looper letters, 66 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2023-08-25 05:03:43,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 244 transitions, 653 flow [2023-08-25 05:03:43,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:03:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:03:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2858 transitions. [2023-08-25 05:03:43,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4584536413217838 [2023-08-25 05:03:43,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2858 transitions. [2023-08-25 05:03:43,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2858 transitions. [2023-08-25 05:03:43,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:43,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2858 transitions. [2023-08-25 05:03:43,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 952.6666666666666) internal successors, (2858), 3 states have internal predecessors, (2858), 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 05:03:43,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:43,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2078.0) internal successors, (8312), 4 states have internal predecessors, (8312), 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 05:03:43,926 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 515 flow. Second operand 3 states and 2858 transitions. [2023-08-25 05:03:43,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 244 transitions, 653 flow [2023-08-25 05:03:43,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 244 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:03:43,930 INFO L231 Difference]: Finished difference. Result has 243 places, 244 transitions, 526 flow [2023-08-25 05:03:43,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=243, PETRI_TRANSITIONS=244} [2023-08-25 05:03:43,931 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -76 predicate places. [2023-08-25 05:03:43,931 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 244 transitions, 526 flow [2023-08-25 05:03:43,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 934.3333333333334) internal successors, (2803), 3 states have internal predecessors, (2803), 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 05:03:43,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:43,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:43,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:03:43,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:43,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:43,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1906361036, now seen corresponding path program 1 times [2023-08-25 05:03:43,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:43,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340894849] [2023-08-25 05:03:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:43,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:03:44,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:44,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340894849] [2023-08-25 05:03:44,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340894849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:44,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:44,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:03:44,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162947175] [2023-08-25 05:03:44,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:44,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:03:44,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:44,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:03:44,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:03:44,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 888 out of 2078 [2023-08-25 05:03:44,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 244 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 891.5) internal successors, (3566), 4 states have internal predecessors, (3566), 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 05:03:44,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:44,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 888 of 2078 [2023-08-25 05:03:44,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:03:52,917 INFO L124 PetriNetUnfolderBase]: 41659/98618 cut-off events. [2023-08-25 05:03:52,918 INFO L125 PetriNetUnfolderBase]: For 778/778 co-relation queries the response was YES. [2023-08-25 05:03:53,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157450 conditions, 98618 events. 41659/98618 cut-off events. For 778/778 co-relation queries the response was YES. Maximal size of possible extension queue 2260. Compared 1208287 event pairs, 36132 based on Foata normal form. 0/81786 useless extension candidates. Maximal degree in co-relation 157443. Up to 57876 conditions per place. [2023-08-25 05:03:53,634 INFO L140 encePairwiseOnDemand]: 2074/2078 looper letters, 91 selfloop transitions, 3 changer transitions 0/245 dead transitions. [2023-08-25 05:03:53,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 245 transitions, 716 flow [2023-08-25 05:03:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:03:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:03:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3645 transitions. [2023-08-25 05:03:53,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43852261790182867 [2023-08-25 05:03:53,642 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3645 transitions. [2023-08-25 05:03:53,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3645 transitions. [2023-08-25 05:03:53,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:03:53,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3645 transitions. [2023-08-25 05:03:53,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 911.25) internal successors, (3645), 4 states have internal predecessors, (3645), 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 05:03:53,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:03:53,660 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:03:53,661 INFO L175 Difference]: Start difference. First operand has 243 places, 244 transitions, 526 flow. Second operand 4 states and 3645 transitions. [2023-08-25 05:03:53,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 245 transitions, 716 flow [2023-08-25 05:03:53,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 245 transitions, 712 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 05:03:53,667 INFO L231 Difference]: Finished difference. Result has 246 places, 245 transitions, 536 flow [2023-08-25 05:03:53,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=536, PETRI_PLACES=246, PETRI_TRANSITIONS=245} [2023-08-25 05:03:53,668 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -73 predicate places. [2023-08-25 05:03:53,668 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 245 transitions, 536 flow [2023-08-25 05:03:53,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 891.5) internal successors, (3566), 4 states have internal predecessors, (3566), 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 05:03:53,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:03:53,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:03:53,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:03:53,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:03:53,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:03:53,670 INFO L85 PathProgramCache]: Analyzing trace with hash 11085780, now seen corresponding path program 1 times [2023-08-25 05:03:53,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:03:53,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732584479] [2023-08-25 05:03:53,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:03:53,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:03:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:03:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:03:53,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:03:53,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732584479] [2023-08-25 05:03:53,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732584479] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:03:53,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:03:53,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:03:53,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725825741] [2023-08-25 05:03:53,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:03:53,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:03:53,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:03:53,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:03:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:03:53,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 888 out of 2078 [2023-08-25 05:03:53,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 245 transitions, 536 flow. Second operand has 4 states, 4 states have (on average 891.75) internal successors, (3567), 4 states have internal predecessors, (3567), 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 05:03:53,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:03:53,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 888 of 2078 [2023-08-25 05:03:53,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:04:02,588 INFO L124 PetriNetUnfolderBase]: 48311/100623 cut-off events. [2023-08-25 05:04:02,588 INFO L125 PetriNetUnfolderBase]: For 2049/2049 co-relation queries the response was YES. [2023-08-25 05:04:03,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170218 conditions, 100623 events. 48311/100623 cut-off events. For 2049/2049 co-relation queries the response was YES. Maximal size of possible extension queue 2358. Compared 1130001 event pairs, 42452 based on Foata normal form. 0/82903 useless extension candidates. Maximal degree in co-relation 170210. Up to 67638 conditions per place. [2023-08-25 05:04:03,453 INFO L140 encePairwiseOnDemand]: 2073/2078 looper letters, 92 selfloop transitions, 4 changer transitions 0/246 dead transitions. [2023-08-25 05:04:03,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 246 transitions, 730 flow [2023-08-25 05:04:03,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:04:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:04:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3647 transitions. [2023-08-25 05:04:03,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43876323387872956 [2023-08-25 05:04:03,459 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3647 transitions. [2023-08-25 05:04:03,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3647 transitions. [2023-08-25 05:04:03,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:04:03,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3647 transitions. [2023-08-25 05:04:03,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 911.75) internal successors, (3647), 4 states have internal predecessors, (3647), 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 05:04:03,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:03,479 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:03,479 INFO L175 Difference]: Start difference. First operand has 246 places, 245 transitions, 536 flow. Second operand 4 states and 3647 transitions. [2023-08-25 05:04:03,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 246 transitions, 730 flow [2023-08-25 05:04:03,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 246 transitions, 724 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 05:04:03,483 INFO L231 Difference]: Finished difference. Result has 248 places, 246 transitions, 548 flow [2023-08-25 05:04:03,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=548, PETRI_PLACES=248, PETRI_TRANSITIONS=246} [2023-08-25 05:04:03,486 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -71 predicate places. [2023-08-25 05:04:03,486 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 246 transitions, 548 flow [2023-08-25 05:04:03,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 891.75) internal successors, (3567), 4 states have internal predecessors, (3567), 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 05:04:03,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:04:03,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:04:03,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:04:03,487 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:04:03,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:04:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1238515412, now seen corresponding path program 1 times [2023-08-25 05:04:03,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:04:03,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816111878] [2023-08-25 05:04:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:04:03,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:04:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:04:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:04:03,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:04:03,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816111878] [2023-08-25 05:04:03,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816111878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:04:03,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:04:03,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:04:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453101966] [2023-08-25 05:04:03,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:04:03,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:04:03,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:04:03,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:04:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:04:03,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 900 out of 2078 [2023-08-25 05:04:03,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 246 transitions, 548 flow. Second operand has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 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 05:04:03,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:04:03,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 900 of 2078 [2023-08-25 05:04:03,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:04:17,008 INFO L124 PetriNetUnfolderBase]: 73560/158784 cut-off events. [2023-08-25 05:04:17,009 INFO L125 PetriNetUnfolderBase]: For 1352/1352 co-relation queries the response was YES. [2023-08-25 05:04:17,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263587 conditions, 158784 events. 73560/158784 cut-off events. For 1352/1352 co-relation queries the response was YES. Maximal size of possible extension queue 2853. Compared 1860797 event pairs, 66191 based on Foata normal form. 0/133785 useless extension candidates. Maximal degree in co-relation 263578. Up to 102829 conditions per place. [2023-08-25 05:04:18,340 INFO L140 encePairwiseOnDemand]: 2074/2078 looper letters, 101 selfloop transitions, 3 changer transitions 0/247 dead transitions. [2023-08-25 05:04:18,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 247 transitions, 758 flow [2023-08-25 05:04:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:04:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:04:18,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3701 transitions. [2023-08-25 05:04:18,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44525986525505296 [2023-08-25 05:04:18,526 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3701 transitions. [2023-08-25 05:04:18,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3701 transitions. [2023-08-25 05:04:18,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:04:18,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3701 transitions. [2023-08-25 05:04:18,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 925.25) internal successors, (3701), 4 states have internal predecessors, (3701), 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 05:04:18,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:18,546 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:18,546 INFO L175 Difference]: Start difference. First operand has 248 places, 246 transitions, 548 flow. Second operand 4 states and 3701 transitions. [2023-08-25 05:04:18,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 247 transitions, 758 flow [2023-08-25 05:04:18,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 247 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:04:18,552 INFO L231 Difference]: Finished difference. Result has 250 places, 247 transitions, 558 flow [2023-08-25 05:04:18,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=558, PETRI_PLACES=250, PETRI_TRANSITIONS=247} [2023-08-25 05:04:18,554 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -69 predicate places. [2023-08-25 05:04:18,554 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 247 transitions, 558 flow [2023-08-25 05:04:18,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 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 05:04:18,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:04:18,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:04:18,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:04:18,555 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:04:18,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:04:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash -282840293, now seen corresponding path program 1 times [2023-08-25 05:04:18,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:04:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699801834] [2023-08-25 05:04:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:04:18,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:04:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:04:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:04:18,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:04:18,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699801834] [2023-08-25 05:04:18,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699801834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:04:18,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:04:18,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:04:18,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274179596] [2023-08-25 05:04:18,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:04:18,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:04:18,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:04:18,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:04:18,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:04:18,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 900 out of 2078 [2023-08-25 05:04:18,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 247 transitions, 558 flow. Second operand has 4 states, 4 states have (on average 904.25) internal successors, (3617), 4 states have internal predecessors, (3617), 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 05:04:18,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:04:18,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 900 of 2078 [2023-08-25 05:04:18,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:04:27,234 INFO L124 PetriNetUnfolderBase]: 41659/98621 cut-off events. [2023-08-25 05:04:27,234 INFO L125 PetriNetUnfolderBase]: For 781/781 co-relation queries the response was YES. [2023-08-25 05:04:27,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157472 conditions, 98621 events. 41659/98621 cut-off events. For 781/781 co-relation queries the response was YES. Maximal size of possible extension queue 2264. Compared 1208238 event pairs, 36132 based on Foata normal form. 0/81792 useless extension candidates. Maximal degree in co-relation 157462. Up to 57879 conditions per place. [2023-08-25 05:04:28,005 INFO L140 encePairwiseOnDemand]: 2074/2078 looper letters, 94 selfloop transitions, 3 changer transitions 0/248 dead transitions. [2023-08-25 05:04:28,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 248 transitions, 754 flow [2023-08-25 05:04:28,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:04:28,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:04:28,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3693 transitions. [2023-08-25 05:04:28,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4442974013474495 [2023-08-25 05:04:28,011 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3693 transitions. [2023-08-25 05:04:28,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3693 transitions. [2023-08-25 05:04:28,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:04:28,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3693 transitions. [2023-08-25 05:04:28,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 923.25) internal successors, (3693), 4 states have internal predecessors, (3693), 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 05:04:28,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:28,026 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:28,027 INFO L175 Difference]: Start difference. First operand has 250 places, 247 transitions, 558 flow. Second operand 4 states and 3693 transitions. [2023-08-25 05:04:28,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 248 transitions, 754 flow [2023-08-25 05:04:28,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 248 transitions, 748 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 05:04:28,032 INFO L231 Difference]: Finished difference. Result has 252 places, 248 transitions, 566 flow [2023-08-25 05:04:28,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=566, PETRI_PLACES=252, PETRI_TRANSITIONS=248} [2023-08-25 05:04:28,033 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -67 predicate places. [2023-08-25 05:04:28,033 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 248 transitions, 566 flow [2023-08-25 05:04:28,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 904.25) internal successors, (3617), 4 states have internal predecessors, (3617), 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 05:04:28,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:04:28,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:04:28,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:04:28,034 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:04:28,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:04:28,035 INFO L85 PathProgramCache]: Analyzing trace with hash 331834726, now seen corresponding path program 1 times [2023-08-25 05:04:28,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:04:28,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677184768] [2023-08-25 05:04:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:04:28,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:04:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:04:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:04:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:04:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677184768] [2023-08-25 05:04:28,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677184768] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:04:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472076282] [2023-08-25 05:04:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:04:28,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:04:28,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:04:28,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:04:28,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 05:04:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:04:28,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:04:28,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:04:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 05:04:28,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 05:04:28,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472076282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:04:28,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 05:04:28,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-08-25 05:04:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409333183] [2023-08-25 05:04:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:04:28,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:04:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:04:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:04:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:04:28,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 900 out of 2078 [2023-08-25 05:04:28,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 248 transitions, 566 flow. Second operand has 4 states, 4 states have (on average 904.5) internal successors, (3618), 4 states have internal predecessors, (3618), 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 05:04:28,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:04:28,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 900 of 2078 [2023-08-25 05:04:28,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:04:38,493 INFO L124 PetriNetUnfolderBase]: 48311/100626 cut-off events. [2023-08-25 05:04:38,493 INFO L125 PetriNetUnfolderBase]: For 2051/2051 co-relation queries the response was YES. [2023-08-25 05:04:38,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170239 conditions, 100626 events. 48311/100626 cut-off events. For 2051/2051 co-relation queries the response was YES. Maximal size of possible extension queue 2358. Compared 1130246 event pairs, 42452 based on Foata normal form. 0/82909 useless extension candidates. Maximal degree in co-relation 170228. Up to 67642 conditions per place. [2023-08-25 05:04:39,315 INFO L140 encePairwiseOnDemand]: 2074/2078 looper letters, 96 selfloop transitions, 3 changer transitions 0/249 dead transitions. [2023-08-25 05:04:39,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 249 transitions, 766 flow [2023-08-25 05:04:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:04:39,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:04:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3694 transitions. [2023-08-25 05:04:39,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444177093358999 [2023-08-25 05:04:39,320 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3694 transitions. [2023-08-25 05:04:39,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3694 transitions. [2023-08-25 05:04:39,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:04:39,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3694 transitions. [2023-08-25 05:04:39,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 923.5) internal successors, (3694), 4 states have internal predecessors, (3694), 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 05:04:39,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:39,333 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2078.0) internal successors, (10390), 5 states have internal predecessors, (10390), 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 05:04:39,333 INFO L175 Difference]: Start difference. First operand has 252 places, 248 transitions, 566 flow. Second operand 4 states and 3694 transitions. [2023-08-25 05:04:39,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 249 transitions, 766 flow [2023-08-25 05:04:39,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 249 transitions, 760 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 05:04:39,337 INFO L231 Difference]: Finished difference. Result has 254 places, 249 transitions, 574 flow [2023-08-25 05:04:39,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2078, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=574, PETRI_PLACES=254, PETRI_TRANSITIONS=249} [2023-08-25 05:04:39,338 INFO L281 CegarLoopForPetriNet]: 319 programPoint places, -65 predicate places. [2023-08-25 05:04:39,338 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 249 transitions, 574 flow [2023-08-25 05:04:39,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 904.5) internal successors, (3618), 4 states have internal predecessors, (3618), 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 05:04:39,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:04:39,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:04:39,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 05:04:39,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-25 05:04:39,549 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 194 more)] === [2023-08-25 05:04:39,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:04:39,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1106170559, now seen corresponding path program 1 times [2023-08-25 05:04:39,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:04:39,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828131249] [2023-08-25 05:04:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:04:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:04:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:04:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-25 05:04:40,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:04:40,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828131249] [2023-08-25 05:04:40,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828131249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:04:40,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:04:40,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:04:40,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984061010] [2023-08-25 05:04:40,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:04:40,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:04:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:04:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:04:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:04:40,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 843 out of 2078 [2023-08-25 05:04:40,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 249 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 846.8333333333334) internal successors, (5081), 6 states have internal predecessors, (5081), 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 05:04:40,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:04:40,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 843 of 2078 [2023-08-25 05:04:40,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand