/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:04:58,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:04:58,759 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 19:04:58,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:04:58,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:04:58,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:04:58,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:04:58,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:04:58,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:04:58,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:04:58,794 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:04:58,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:04:58,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:04:58,795 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:04:58,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:04:58,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:04:58,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:04:58,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:04:58,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:04:58,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:04:58,797 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:04:58,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:04:58,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:04:58,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:04:58,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:04:58,799 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:04:58,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:04:58,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:04:58,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:04:58,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:04:58,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:04:58,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:04:58,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:04:58,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:04:58,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:04:58,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:04:59,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:04:59,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:04:59,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:04:59,133 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:04:59,133 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:04:59,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-25 19:05:00,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:05:00,549 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:05:00,549 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-25 19:05:00,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8da8f60/b7b7bfda6eef48f2bb528e41f1684bef/FLAGb935e0bc7 [2023-08-25 19:05:00,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8da8f60/b7b7bfda6eef48f2bb528e41f1684bef [2023-08-25 19:05:00,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:05:00,569 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:05:00,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:05:00,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:05:00,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:05:00,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5709b6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00, skipping insertion in model container [2023-08-25 19:05:00,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,592 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:05:00,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:05:00,747 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:05:00,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:05:00,791 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:05:00,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00 WrapperNode [2023-08-25 19:05:00,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:05:00,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:05:00,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:05:00,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:05:00,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,860 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 256 [2023-08-25 19:05:00,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:05:00,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:05:00,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:05:00,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:05:00,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:05:00,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:05:00,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:05:00,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:05:00,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (1/1) ... [2023-08-25 19:05:00,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:05:00,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:05:00,938 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 19:05:00,948 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 19:05:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:05:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:05:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:05:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:05:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:05:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:05:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:05:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:05:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:05:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:05:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:05:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:05:00,972 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 19:05:01,069 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:05:01,082 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:05:01,522 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:05:01,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:05:01,539 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:05:01,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:05:01 BoogieIcfgContainer [2023-08-25 19:05:01,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:05:01,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:05:01,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:05:01,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:05:01,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:05:00" (1/3) ... [2023-08-25 19:05:01,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b618d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:05:01, skipping insertion in model container [2023-08-25 19:05:01,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:00" (2/3) ... [2023-08-25 19:05:01,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b618d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:05:01, skipping insertion in model container [2023-08-25 19:05:01,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:05:01" (3/3) ... [2023-08-25 19:05:01,552 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-08-25 19:05:01,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:05:01,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-08-25 19:05:01,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:05:01,687 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 19:05:01,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 323 transitions, 662 flow [2023-08-25 19:05:01,877 INFO L124 PetriNetUnfolderBase]: 22/321 cut-off events. [2023-08-25 19:05:01,878 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:05:01,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 321 events. 22/321 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 805 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 197. Up to 2 conditions per place. [2023-08-25 19:05:01,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 323 transitions, 662 flow [2023-08-25 19:05:01,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 312 transitions, 636 flow [2023-08-25 19:05:01,903 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:05:01,916 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 297 places, 312 transitions, 636 flow [2023-08-25 19:05:01,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 297 places, 312 transitions, 636 flow [2023-08-25 19:05:01,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 312 transitions, 636 flow [2023-08-25 19:05:01,981 INFO L124 PetriNetUnfolderBase]: 22/312 cut-off events. [2023-08-25 19:05:01,982 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:05:01,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 312 events. 22/312 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 804 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 197. Up to 2 conditions per place. [2023-08-25 19:05:01,997 INFO L119 LiptonReduction]: Number of co-enabled transitions 21716 [2023-08-25 19:05:09,486 INFO L134 LiptonReduction]: Checked pairs total: 82119 [2023-08-25 19:05:09,486 INFO L136 LiptonReduction]: Total number of compositions: 313 [2023-08-25 19:05:09,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:05:09,503 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;@ec5dd5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:05:09,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2023-08-25 19:05:09,505 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:05:09,505 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:05:09,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:05:09,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:09,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:05:09,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:09,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:09,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1230, now seen corresponding path program 1 times [2023-08-25 19:05:09,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:09,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309579742] [2023-08-25 19:05:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:09,595 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 19:05:09,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:09,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309579742] [2023-08-25 19:05:09,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309579742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:09,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:09,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:05:09,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156132074] [2023-08-25 19:05:09,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:09,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:05:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:09,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:05:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:05:09,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 636 [2023-08-25 19:05:09,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 208 flow. Second operand has 2 states, 2 states have (on average 311.5) internal successors, (623), 2 states have internal predecessors, (623), 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 19:05:09,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:09,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 636 [2023-08-25 19:05:09,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:09,809 INFO L124 PetriNetUnfolderBase]: 738/1658 cut-off events. [2023-08-25 19:05:09,809 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-25 19:05:09,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2777 conditions, 1658 events. 738/1658 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11652 event pairs, 426 based on Foata normal form. 20/1261 useless extension candidates. Maximal degree in co-relation 2638. Up to 1076 conditions per place. [2023-08-25 19:05:09,820 INFO L140 encePairwiseOnDemand]: 622/636 looper letters, 43 selfloop transitions, 0 changer transitions 0/84 dead transitions. [2023-08-25 19:05:09,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 84 transitions, 266 flow [2023-08-25 19:05:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:05:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:05:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 679 transitions. [2023-08-25 19:05:09,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5338050314465409 [2023-08-25 19:05:09,834 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 679 transitions. [2023-08-25 19:05:09,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 679 transitions. [2023-08-25 19:05:09,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:09,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 679 transitions. [2023-08-25 19:05:09,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 339.5) internal successors, (679), 2 states have internal predecessors, (679), 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 19:05:09,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 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 19:05:09,849 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 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 19:05:09,851 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 208 flow. Second operand 2 states and 679 transitions. [2023-08-25 19:05:09,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 84 transitions, 266 flow [2023-08-25 19:05:09,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:05:09,856 INFO L231 Difference]: Finished difference. Result has 76 places, 84 transitions, 172 flow [2023-08-25 19:05:09,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=172, PETRI_PLACES=76, PETRI_TRANSITIONS=84} [2023-08-25 19:05:09,861 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2023-08-25 19:05:09,861 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 84 transitions, 172 flow [2023-08-25 19:05:09,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 311.5) internal successors, (623), 2 states have internal predecessors, (623), 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 19:05:09,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:09,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 19:05:09,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:05:09,862 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:09,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:09,863 INFO L85 PathProgramCache]: Analyzing trace with hash 38500039, now seen corresponding path program 1 times [2023-08-25 19:05:09,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:09,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372980503] [2023-08-25 19:05:09,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:09,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:09,959 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 19:05:09,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:09,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372980503] [2023-08-25 19:05:09,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372980503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:09,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:09,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:09,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399576876] [2023-08-25 19:05:09,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:09,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:09,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:09,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 19:05:09,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 84 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 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 19:05:09,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:09,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 19:05:09,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:10,155 INFO L124 PetriNetUnfolderBase]: 1053/2176 cut-off events. [2023-08-25 19:05:10,156 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 19:05:10,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3760 conditions, 2176 events. 1053/2176 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 14447 event pairs, 390 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 3757. Up to 1559 conditions per place. [2023-08-25 19:05:10,167 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 52 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2023-08-25 19:05:10,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 83 transitions, 279 flow [2023-08-25 19:05:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2023-08-25 19:05:10,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742138364779874 [2023-08-25 19:05:10,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 930 transitions. [2023-08-25 19:05:10,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 930 transitions. [2023-08-25 19:05:10,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:10,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 930 transitions. [2023-08-25 19:05:10,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 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 19:05:10,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:10,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:10,212 INFO L175 Difference]: Start difference. First operand has 76 places, 84 transitions, 172 flow. Second operand 3 states and 930 transitions. [2023-08-25 19:05:10,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 83 transitions, 279 flow [2023-08-25 19:05:10,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 83 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:10,215 INFO L231 Difference]: Finished difference. Result has 73 places, 80 transitions, 174 flow [2023-08-25 19:05:10,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=73, PETRI_TRANSITIONS=80} [2023-08-25 19:05:10,216 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2023-08-25 19:05:10,216 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 80 transitions, 174 flow [2023-08-25 19:05:10,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 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 19:05:10,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:10,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:05:10,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:05:10,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:10,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1644084149, now seen corresponding path program 1 times [2023-08-25 19:05:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068173211] [2023-08-25 19:05:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:10,251 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 19:05:10,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:10,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068173211] [2023-08-25 19:05:10,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068173211] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:10,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:10,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:10,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961282492] [2023-08-25 19:05:10,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:10,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:10,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:10,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:10,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:10,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 19:05:10,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 80 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:10,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:10,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 19:05:10,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:10,444 INFO L124 PetriNetUnfolderBase]: 970/1964 cut-off events. [2023-08-25 19:05:10,444 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-25 19:05:10,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3434 conditions, 1964 events. 970/1964 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12557 event pairs, 336 based on Foata normal form. 0/1526 useless extension candidates. Maximal degree in co-relation 3430. Up to 1436 conditions per place. [2023-08-25 19:05:10,454 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 50 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-08-25 19:05:10,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 79 transitions, 277 flow [2023-08-25 19:05:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2023-08-25 19:05:10,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4863731656184486 [2023-08-25 19:05:10,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 928 transitions. [2023-08-25 19:05:10,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 928 transitions. [2023-08-25 19:05:10,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:10,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 928 transitions. [2023-08-25 19:05:10,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 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 19:05:10,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:10,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:10,465 INFO L175 Difference]: Start difference. First operand has 73 places, 80 transitions, 174 flow. Second operand 3 states and 928 transitions. [2023-08-25 19:05:10,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 79 transitions, 277 flow [2023-08-25 19:05:10,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 79 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:10,469 INFO L231 Difference]: Finished difference. Result has 70 places, 76 transitions, 176 flow [2023-08-25 19:05:10,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=70, PETRI_TRANSITIONS=76} [2023-08-25 19:05:10,470 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -22 predicate places. [2023-08-25 19:05:10,470 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 76 transitions, 176 flow [2023-08-25 19:05:10,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:10,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:10,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:10,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:05:10,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:10,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1879258368, now seen corresponding path program 1 times [2023-08-25 19:05:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206707985] [2023-08-25 19:05:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:10,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:10,548 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 19:05:10,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:10,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206707985] [2023-08-25 19:05:10,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206707985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:10,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:10,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:10,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724795927] [2023-08-25 19:05:10,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:10,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:10,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:10,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:10,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:10,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 19:05:10,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 76 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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 19:05:10,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:10,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 19:05:10,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:10,743 INFO L124 PetriNetUnfolderBase]: 880/1825 cut-off events. [2023-08-25 19:05:10,743 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 19:05:10,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 1825 events. 880/1825 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 12121 event pairs, 346 based on Foata normal form. 0/1443 useless extension candidates. Maximal degree in co-relation 3166. Up to 874 conditions per place. [2023-08-25 19:05:10,754 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 61 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2023-08-25 19:05:10,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 97 transitions, 347 flow [2023-08-25 19:05:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:10,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 977 transitions. [2023-08-25 19:05:10,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5120545073375262 [2023-08-25 19:05:10,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 977 transitions. [2023-08-25 19:05:10,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 977 transitions. [2023-08-25 19:05:10,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:10,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 977 transitions. [2023-08-25 19:05:10,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 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 19:05:10,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:10,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:10,765 INFO L175 Difference]: Start difference. First operand has 70 places, 76 transitions, 176 flow. Second operand 3 states and 977 transitions. [2023-08-25 19:05:10,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 97 transitions, 347 flow [2023-08-25 19:05:10,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:10,768 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 198 flow [2023-08-25 19:05:10,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2023-08-25 19:05:10,771 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-08-25 19:05:10,771 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 198 flow [2023-08-25 19:05:10,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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 19:05:10,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:10,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:10,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:05:10,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:10,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:10,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1872633678, now seen corresponding path program 1 times [2023-08-25 19:05:10,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:10,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239354237] [2023-08-25 19:05:10,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:10,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:10,841 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 19:05:10,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:10,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239354237] [2023-08-25 19:05:10,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239354237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:10,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:10,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:10,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026243105] [2023-08-25 19:05:10,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:10,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:10,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:10,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:10,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:10,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 636 [2023-08-25 19:05:10,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:10,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:10,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 636 [2023-08-25 19:05:10,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:11,031 INFO L124 PetriNetUnfolderBase]: 880/1807 cut-off events. [2023-08-25 19:05:11,032 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-08-25 19:05:11,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3389 conditions, 1807 events. 880/1807 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11993 event pairs, 448 based on Foata normal form. 52/1512 useless extension candidates. Maximal degree in co-relation 3382. Up to 1116 conditions per place. [2023-08-25 19:05:11,090 INFO L140 encePairwiseOnDemand]: 630/636 looper letters, 58 selfloop transitions, 6 changer transitions 0/96 dead transitions. [2023-08-25 19:05:11,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 363 flow [2023-08-25 19:05:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:11,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2023-08-25 19:05:11,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-25 19:05:11,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2023-08-25 19:05:11,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2023-08-25 19:05:11,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:11,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2023-08-25 19:05:11,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 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 19:05:11,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:11,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:11,100 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 198 flow. Second operand 3 states and 954 transitions. [2023-08-25 19:05:11,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 363 flow [2023-08-25 19:05:11,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 96 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:11,103 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 202 flow [2023-08-25 19:05:11,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2023-08-25 19:05:11,104 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2023-08-25 19:05:11,104 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 202 flow [2023-08-25 19:05:11,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:11,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:11,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:11,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:05:11,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:11,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1921078214, now seen corresponding path program 1 times [2023-08-25 19:05:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748943702] [2023-08-25 19:05:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:11,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:11,130 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 19:05:11,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:11,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748943702] [2023-08-25 19:05:11,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748943702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:11,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:11,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:11,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499035163] [2023-08-25 19:05:11,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:11,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:11,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:11,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:11,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:11,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 636 [2023-08-25 19:05:11,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 19:05:11,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:11,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 636 [2023-08-25 19:05:11,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:11,365 INFO L124 PetriNetUnfolderBase]: 1280/2573 cut-off events. [2023-08-25 19:05:11,365 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2023-08-25 19:05:11,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5082 conditions, 2573 events. 1280/2573 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 17522 event pairs, 516 based on Foata normal form. 0/2158 useless extension candidates. Maximal degree in co-relation 5075. Up to 1312 conditions per place. [2023-08-25 19:05:11,381 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 70 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2023-08-25 19:05:11,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 106 transitions, 429 flow [2023-08-25 19:05:11,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2023-08-25 19:05:11,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172955974842768 [2023-08-25 19:05:11,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2023-08-25 19:05:11,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2023-08-25 19:05:11,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:11,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2023-08-25 19:05:11,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 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 19:05:11,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:11,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:11,391 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 202 flow. Second operand 3 states and 987 transitions. [2023-08-25 19:05:11,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 106 transitions, 429 flow [2023-08-25 19:05:11,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 106 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:11,411 INFO L231 Difference]: Finished difference. Result has 75 places, 80 transitions, 224 flow [2023-08-25 19:05:11,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=75, PETRI_TRANSITIONS=80} [2023-08-25 19:05:11,414 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -17 predicate places. [2023-08-25 19:05:11,414 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 80 transitions, 224 flow [2023-08-25 19:05:11,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 19:05:11,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:11,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:11,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:05:11,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:11,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:11,415 INFO L85 PathProgramCache]: Analyzing trace with hash -400409200, now seen corresponding path program 1 times [2023-08-25 19:05:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:11,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720377424] [2023-08-25 19:05:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:11,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:11,440 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 19:05:11,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:11,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720377424] [2023-08-25 19:05:11,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720377424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:11,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:11,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263529057] [2023-08-25 19:05:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:11,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:11,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 636 [2023-08-25 19:05:11,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 80 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 19:05:11,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:11,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 636 [2023-08-25 19:05:11,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:11,807 INFO L124 PetriNetUnfolderBase]: 1934/3941 cut-off events. [2023-08-25 19:05:11,808 INFO L125 PetriNetUnfolderBase]: For 749/749 co-relation queries the response was YES. [2023-08-25 19:05:11,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7657 conditions, 3941 events. 1934/3941 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 28917 event pairs, 754 based on Foata normal form. 0/3237 useless extension candidates. Maximal degree in co-relation 7649. Up to 1846 conditions per place. [2023-08-25 19:05:11,834 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 80 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2023-08-25 19:05:11,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 115 transitions, 501 flow [2023-08-25 19:05:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:11,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2023-08-25 19:05:11,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5183438155136268 [2023-08-25 19:05:11,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2023-08-25 19:05:11,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2023-08-25 19:05:11,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:11,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2023-08-25 19:05:11,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 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 19:05:11,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:11,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:11,844 INFO L175 Difference]: Start difference. First operand has 75 places, 80 transitions, 224 flow. Second operand 3 states and 989 transitions. [2023-08-25 19:05:11,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 115 transitions, 501 flow [2023-08-25 19:05:11,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 115 transitions, 485 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:11,850 INFO L231 Difference]: Finished difference. Result has 77 places, 82 transitions, 238 flow [2023-08-25 19:05:11,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=77, PETRI_TRANSITIONS=82} [2023-08-25 19:05:11,850 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -15 predicate places. [2023-08-25 19:05:11,851 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 82 transitions, 238 flow [2023-08-25 19:05:11,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 19:05:11,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:11,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:11,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:05:11,852 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:11,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:11,852 INFO L85 PathProgramCache]: Analyzing trace with hash -774873499, now seen corresponding path program 1 times [2023-08-25 19:05:11,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:11,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793716681] [2023-08-25 19:05:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:11,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:11,897 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 19:05:11,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793716681] [2023-08-25 19:05:11,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793716681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:11,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:11,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:11,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019987914] [2023-08-25 19:05:11,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:11,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:11,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:11,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:11,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:11,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 636 [2023-08-25 19:05:11,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 82 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:11,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:11,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 636 [2023-08-25 19:05:11,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:12,417 INFO L124 PetriNetUnfolderBase]: 3512/6091 cut-off events. [2023-08-25 19:05:12,418 INFO L125 PetriNetUnfolderBase]: For 1344/1344 co-relation queries the response was YES. [2023-08-25 19:05:12,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13203 conditions, 6091 events. 3512/6091 cut-off events. For 1344/1344 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 40341 event pairs, 1030 based on Foata normal form. 0/5253 useless extension candidates. Maximal degree in co-relation 13194. Up to 3006 conditions per place. [2023-08-25 19:05:12,458 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 97 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-08-25 19:05:12,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 124 transitions, 573 flow [2023-08-25 19:05:12,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2023-08-25 19:05:12,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5136268343815513 [2023-08-25 19:05:12,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2023-08-25 19:05:12,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2023-08-25 19:05:12,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:12,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2023-08-25 19:05:12,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 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 19:05:12,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:12,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:12,466 INFO L175 Difference]: Start difference. First operand has 77 places, 82 transitions, 238 flow. Second operand 3 states and 980 transitions. [2023-08-25 19:05:12,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 124 transitions, 573 flow [2023-08-25 19:05:12,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 124 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:12,477 INFO L231 Difference]: Finished difference. Result has 74 places, 82 transitions, 254 flow [2023-08-25 19:05:12,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=74, PETRI_TRANSITIONS=82} [2023-08-25 19:05:12,478 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-08-25 19:05:12,478 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 82 transitions, 254 flow [2023-08-25 19:05:12,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:12,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:12,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:12,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:05:12,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:12,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1701665846, now seen corresponding path program 1 times [2023-08-25 19:05:12,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:12,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201000099] [2023-08-25 19:05:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:12,529 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 19:05:12,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:12,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201000099] [2023-08-25 19:05:12,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201000099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:12,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:12,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:12,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410300532] [2023-08-25 19:05:12,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:12,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:12,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:12,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:12,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 636 [2023-08-25 19:05:12,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 82 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:12,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:12,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 636 [2023-08-25 19:05:12,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:13,056 INFO L124 PetriNetUnfolderBase]: 3837/6316 cut-off events. [2023-08-25 19:05:13,057 INFO L125 PetriNetUnfolderBase]: For 1170/1170 co-relation queries the response was YES. [2023-08-25 19:05:13,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14369 conditions, 6316 events. 3837/6316 cut-off events. For 1170/1170 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 38516 event pairs, 1063 based on Foata normal form. 0/5578 useless extension candidates. Maximal degree in co-relation 14360. Up to 3474 conditions per place. [2023-08-25 19:05:13,098 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 98 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-08-25 19:05:13,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 124 transitions, 588 flow [2023-08-25 19:05:13,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2023-08-25 19:05:13,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5136268343815513 [2023-08-25 19:05:13,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2023-08-25 19:05:13,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2023-08-25 19:05:13,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:13,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2023-08-25 19:05:13,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 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 19:05:13,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:13,107 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:13,107 INFO L175 Difference]: Start difference. First operand has 74 places, 82 transitions, 254 flow. Second operand 3 states and 980 transitions. [2023-08-25 19:05:13,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 124 transitions, 588 flow [2023-08-25 19:05:13,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 124 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:13,114 INFO L231 Difference]: Finished difference. Result has 73 places, 82 transitions, 276 flow [2023-08-25 19:05:13,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=73, PETRI_TRANSITIONS=82} [2023-08-25 19:05:13,114 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2023-08-25 19:05:13,115 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 82 transitions, 276 flow [2023-08-25 19:05:13,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:13,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:13,115 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 19:05:13,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:05:13,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:13,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -980085749, now seen corresponding path program 1 times [2023-08-25 19:05:13,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:13,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550811265] [2023-08-25 19:05:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:13,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:13,155 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 19:05:13,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:13,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550811265] [2023-08-25 19:05:13,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550811265] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:13,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:13,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:13,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991010886] [2023-08-25 19:05:13,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:13,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:13,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:13,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:13,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:13,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 19:05:13,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 82 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 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 19:05:13,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:13,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 19:05:13,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:13,641 INFO L124 PetriNetUnfolderBase]: 3197/5658 cut-off events. [2023-08-25 19:05:13,641 INFO L125 PetriNetUnfolderBase]: For 1327/1327 co-relation queries the response was YES. [2023-08-25 19:05:13,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13039 conditions, 5658 events. 3197/5658 cut-off events. For 1327/1327 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 37878 event pairs, 961 based on Foata normal form. 0/5085 useless extension candidates. Maximal degree in co-relation 13029. Up to 2347 conditions per place. [2023-08-25 19:05:13,680 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 78 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2023-08-25 19:05:13,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 112 transitions, 544 flow [2023-08-25 19:05:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:13,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2023-08-25 19:05:13,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131027253668763 [2023-08-25 19:05:13,684 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2023-08-25 19:05:13,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2023-08-25 19:05:13,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:13,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2023-08-25 19:05:13,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 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 19:05:13,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:13,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:13,689 INFO L175 Difference]: Start difference. First operand has 73 places, 82 transitions, 276 flow. Second operand 3 states and 979 transitions. [2023-08-25 19:05:13,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 112 transitions, 544 flow [2023-08-25 19:05:13,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 112 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:13,696 INFO L231 Difference]: Finished difference. Result has 77 places, 85 transitions, 310 flow [2023-08-25 19:05:13,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=77, PETRI_TRANSITIONS=85} [2023-08-25 19:05:13,697 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -15 predicate places. [2023-08-25 19:05:13,698 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 85 transitions, 310 flow [2023-08-25 19:05:13,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 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 19:05:13,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:13,698 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 19:05:13,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:05:13,698 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:13,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:13,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1861577740, now seen corresponding path program 1 times [2023-08-25 19:05:13,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:13,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553824531] [2023-08-25 19:05:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:13,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:13,879 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 19:05:13,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:13,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553824531] [2023-08-25 19:05:13,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553824531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:13,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:13,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:13,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835367280] [2023-08-25 19:05:13,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:13,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:13,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:13,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:13,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:13,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 19:05:13,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 85 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 297.25) internal successors, (1189), 4 states have internal predecessors, (1189), 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 19:05:13,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:13,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 19:05:13,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:14,589 INFO L124 PetriNetUnfolderBase]: 4182/7475 cut-off events. [2023-08-25 19:05:14,589 INFO L125 PetriNetUnfolderBase]: For 3984/3984 co-relation queries the response was YES. [2023-08-25 19:05:14,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19305 conditions, 7475 events. 4182/7475 cut-off events. For 3984/3984 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 53165 event pairs, 693 based on Foata normal form. 82/7104 useless extension candidates. Maximal degree in co-relation 19293. Up to 2914 conditions per place. [2023-08-25 19:05:14,643 INFO L140 encePairwiseOnDemand]: 624/636 looper letters, 128 selfloop transitions, 10 changer transitions 0/168 dead transitions. [2023-08-25 19:05:14,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 168 transitions, 899 flow [2023-08-25 19:05:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1284 transitions. [2023-08-25 19:05:14,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047169811320755 [2023-08-25 19:05:14,648 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1284 transitions. [2023-08-25 19:05:14,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1284 transitions. [2023-08-25 19:05:14,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:14,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1284 transitions. [2023-08-25 19:05:14,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 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 19:05:14,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:14,667 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:14,667 INFO L175 Difference]: Start difference. First operand has 77 places, 85 transitions, 310 flow. Second operand 4 states and 1284 transitions. [2023-08-25 19:05:14,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 168 transitions, 899 flow [2023-08-25 19:05:14,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 168 transitions, 877 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:14,693 INFO L231 Difference]: Finished difference. Result has 81 places, 95 transitions, 392 flow [2023-08-25 19:05:14,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=81, PETRI_TRANSITIONS=95} [2023-08-25 19:05:14,693 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -11 predicate places. [2023-08-25 19:05:14,694 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 95 transitions, 392 flow [2023-08-25 19:05:14,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 297.25) internal successors, (1189), 4 states have internal predecessors, (1189), 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 19:05:14,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:14,694 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 19:05:14,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:05:14,694 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:14,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:14,695 INFO L85 PathProgramCache]: Analyzing trace with hash -899886026, now seen corresponding path program 2 times [2023-08-25 19:05:14,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:14,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646818224] [2023-08-25 19:05:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:14,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:14,884 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 19:05:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:14,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646818224] [2023-08-25 19:05:14,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646818224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:14,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:14,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:14,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577725915] [2023-08-25 19:05:14,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:14,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:14,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:14,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:14,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 19:05:14,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 95 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 296.4) internal successors, (1482), 5 states have internal predecessors, (1482), 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 19:05:14,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:14,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 19:05:14,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:15,881 INFO L124 PetriNetUnfolderBase]: 4788/8861 cut-off events. [2023-08-25 19:05:15,881 INFO L125 PetriNetUnfolderBase]: For 6252/6264 co-relation queries the response was YES. [2023-08-25 19:05:15,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24491 conditions, 8861 events. 4788/8861 cut-off events. For 6252/6264 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 68043 event pairs, 699 based on Foata normal form. 438/8730 useless extension candidates. Maximal degree in co-relation 24477. Up to 3660 conditions per place. [2023-08-25 19:05:15,949 INFO L140 encePairwiseOnDemand]: 622/636 looper letters, 164 selfloop transitions, 17 changer transitions 2/213 dead transitions. [2023-08-25 19:05:15,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 213 transitions, 1227 flow [2023-08-25 19:05:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1613 transitions. [2023-08-25 19:05:15,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072327044025158 [2023-08-25 19:05:15,954 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1613 transitions. [2023-08-25 19:05:15,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1613 transitions. [2023-08-25 19:05:15,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:15,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1613 transitions. [2023-08-25 19:05:15,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 322.6) internal successors, (1613), 5 states have internal predecessors, (1613), 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 19:05:15,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:15,962 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:15,962 INFO L175 Difference]: Start difference. First operand has 81 places, 95 transitions, 392 flow. Second operand 5 states and 1613 transitions. [2023-08-25 19:05:15,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 213 transitions, 1227 flow [2023-08-25 19:05:15,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 213 transitions, 1227 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:15,973 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 549 flow [2023-08-25 19:05:15,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=549, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2023-08-25 19:05:15,975 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -4 predicate places. [2023-08-25 19:05:15,975 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 549 flow [2023-08-25 19:05:15,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.4) internal successors, (1482), 5 states have internal predecessors, (1482), 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 19:05:15,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:15,976 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, 1, 1] [2023-08-25 19:05:15,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:05:15,976 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:15,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1839918108, now seen corresponding path program 1 times [2023-08-25 19:05:15,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:15,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379966597] [2023-08-25 19:05:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:15,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:16,046 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 19:05:16,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379966597] [2023-08-25 19:05:16,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379966597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:16,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:16,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:16,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183336208] [2023-08-25 19:05:16,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:16,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:16,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:16,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:16,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 19:05:16,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:16,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:16,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 19:05:16,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:16,925 INFO L124 PetriNetUnfolderBase]: 4610/8737 cut-off events. [2023-08-25 19:05:16,926 INFO L125 PetriNetUnfolderBase]: For 10699/10711 co-relation queries the response was YES. [2023-08-25 19:05:16,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26507 conditions, 8737 events. 4610/8737 cut-off events. For 10699/10711 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 67686 event pairs, 1343 based on Foata normal form. 61/8299 useless extension candidates. Maximal degree in co-relation 26489. Up to 5149 conditions per place. [2023-08-25 19:05:16,991 INFO L140 encePairwiseOnDemand]: 634/636 looper letters, 114 selfloop transitions, 3 changer transitions 0/147 dead transitions. [2023-08-25 19:05:16,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 147 transitions, 987 flow [2023-08-25 19:05:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2023-08-25 19:05:16,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4989517819706499 [2023-08-25 19:05:16,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2023-08-25 19:05:16,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2023-08-25 19:05:16,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:16,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2023-08-25 19:05:16,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 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 19:05:16,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:16,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:16,999 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 549 flow. Second operand 3 states and 952 transitions. [2023-08-25 19:05:16,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 147 transitions, 987 flow [2023-08-25 19:05:17,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 147 transitions, 979 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:17,023 INFO L231 Difference]: Finished difference. Result has 90 places, 105 transitions, 547 flow [2023-08-25 19:05:17,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=90, PETRI_TRANSITIONS=105} [2023-08-25 19:05:17,024 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2023-08-25 19:05:17,025 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 105 transitions, 547 flow [2023-08-25 19:05:17,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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 19:05:17,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:17,026 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, 1, 1] [2023-08-25 19:05:17,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:05:17,026 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:17,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:17,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2089313455, now seen corresponding path program 1 times [2023-08-25 19:05:17,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:17,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895014408] [2023-08-25 19:05:17,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:17,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:17,132 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 19:05:17,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:17,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895014408] [2023-08-25 19:05:17,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895014408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:17,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:17,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075269170] [2023-08-25 19:05:17,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:17,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:17,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:17,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 19:05:17,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 105 transitions, 547 flow. Second operand has 4 states, 4 states have (on average 291.75) internal successors, (1167), 4 states have internal predecessors, (1167), 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 19:05:17,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:17,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 19:05:17,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:17,864 INFO L124 PetriNetUnfolderBase]: 4590/8785 cut-off events. [2023-08-25 19:05:17,865 INFO L125 PetriNetUnfolderBase]: For 10723/10752 co-relation queries the response was YES. [2023-08-25 19:05:17,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26505 conditions, 8785 events. 4590/8785 cut-off events. For 10723/10752 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 69194 event pairs, 1270 based on Foata normal form. 69/8355 useless extension candidates. Maximal degree in co-relation 26486. Up to 6785 conditions per place. [2023-08-25 19:05:17,933 INFO L140 encePairwiseOnDemand]: 630/636 looper letters, 114 selfloop transitions, 11 changer transitions 2/157 dead transitions. [2023-08-25 19:05:17,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 157 transitions, 1105 flow [2023-08-25 19:05:17,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:17,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1228 transitions. [2023-08-25 19:05:17,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827044025157233 [2023-08-25 19:05:17,940 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1228 transitions. [2023-08-25 19:05:17,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1228 transitions. [2023-08-25 19:05:17,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:17,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1228 transitions. [2023-08-25 19:05:17,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 19:05:17,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:17,946 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:17,946 INFO L175 Difference]: Start difference. First operand has 90 places, 105 transitions, 547 flow. Second operand 4 states and 1228 transitions. [2023-08-25 19:05:17,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 157 transitions, 1105 flow [2023-08-25 19:05:17,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 157 transitions, 1098 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:17,970 INFO L231 Difference]: Finished difference. Result has 95 places, 111 transitions, 638 flow [2023-08-25 19:05:17,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=638, PETRI_PLACES=95, PETRI_TRANSITIONS=111} [2023-08-25 19:05:17,972 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places. [2023-08-25 19:05:17,972 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 111 transitions, 638 flow [2023-08-25 19:05:17,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 291.75) internal successors, (1167), 4 states have internal predecessors, (1167), 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 19:05:17,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:17,973 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, 1, 1] [2023-08-25 19:05:17,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:05:17,973 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:17,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:17,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1618121708, now seen corresponding path program 1 times [2023-08-25 19:05:17,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:17,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258767513] [2023-08-25 19:05:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:17,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:18,101 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 19:05:18,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:18,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258767513] [2023-08-25 19:05:18,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258767513] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:18,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:18,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:18,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621264281] [2023-08-25 19:05:18,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:18,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:18,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:18,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:18,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 19:05:18,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 111 transitions, 638 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:18,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:18,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 19:05:18,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:19,032 INFO L124 PetriNetUnfolderBase]: 4779/9332 cut-off events. [2023-08-25 19:05:19,032 INFO L125 PetriNetUnfolderBase]: For 12303/12357 co-relation queries the response was YES. [2023-08-25 19:05:19,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28796 conditions, 9332 events. 4779/9332 cut-off events. For 12303/12357 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 74897 event pairs, 2945 based on Foata normal form. 9/8809 useless extension candidates. Maximal degree in co-relation 28775. Up to 6825 conditions per place. [2023-08-25 19:05:19,093 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 113 selfloop transitions, 1 changer transitions 10/154 dead transitions. [2023-08-25 19:05:19,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 154 transitions, 1120 flow [2023-08-25 19:05:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:19,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1277 transitions. [2023-08-25 19:05:19,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5019654088050315 [2023-08-25 19:05:19,098 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1277 transitions. [2023-08-25 19:05:19,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1277 transitions. [2023-08-25 19:05:19,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:19,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1277 transitions. [2023-08-25 19:05:19,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.25) internal successors, (1277), 4 states have internal predecessors, (1277), 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 19:05:19,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:19,104 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:19,104 INFO L175 Difference]: Start difference. First operand has 95 places, 111 transitions, 638 flow. Second operand 4 states and 1277 transitions. [2023-08-25 19:05:19,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 154 transitions, 1120 flow [2023-08-25 19:05:19,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 154 transitions, 1108 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:19,133 INFO L231 Difference]: Finished difference. Result has 100 places, 111 transitions, 637 flow [2023-08-25 19:05:19,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=637, PETRI_PLACES=100, PETRI_TRANSITIONS=111} [2023-08-25 19:05:19,134 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 8 predicate places. [2023-08-25 19:05:19,134 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 111 transitions, 637 flow [2023-08-25 19:05:19,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:19,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:19,135 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, 1, 1] [2023-08-25 19:05:19,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:05:19,135 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:19,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1122824556, now seen corresponding path program 2 times [2023-08-25 19:05:19,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:19,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634904997] [2023-08-25 19:05:19,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:19,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:19,232 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 19:05:19,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634904997] [2023-08-25 19:05:19,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634904997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:19,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:19,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:19,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232541986] [2023-08-25 19:05:19,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:19,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:19,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:19,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:19,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 19:05:19,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 111 transitions, 637 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:19,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:19,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 19:05:19,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:20,058 INFO L124 PetriNetUnfolderBase]: 4785/9414 cut-off events. [2023-08-25 19:05:20,058 INFO L125 PetriNetUnfolderBase]: For 12330/12367 co-relation queries the response was YES. [2023-08-25 19:05:20,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29030 conditions, 9414 events. 4785/9414 cut-off events. For 12330/12367 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 76452 event pairs, 3045 based on Foata normal form. 9/8889 useless extension candidates. Maximal degree in co-relation 29006. Up to 7311 conditions per place. [2023-08-25 19:05:20,123 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 112 selfloop transitions, 2 changer transitions 10/154 dead transitions. [2023-08-25 19:05:20,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 154 transitions, 1103 flow [2023-08-25 19:05:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1278 transitions. [2023-08-25 19:05:20,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5023584905660378 [2023-08-25 19:05:20,126 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1278 transitions. [2023-08-25 19:05:20,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1278 transitions. [2023-08-25 19:05:20,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:20,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1278 transitions. [2023-08-25 19:05:20,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.5) internal successors, (1278), 4 states have internal predecessors, (1278), 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 19:05:20,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:20,133 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:20,133 INFO L175 Difference]: Start difference. First operand has 100 places, 111 transitions, 637 flow. Second operand 4 states and 1278 transitions. [2023-08-25 19:05:20,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 154 transitions, 1103 flow [2023-08-25 19:05:20,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 154 transitions, 1090 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:05:20,161 INFO L231 Difference]: Finished difference. Result has 101 places, 111 transitions, 637 flow [2023-08-25 19:05:20,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=637, PETRI_PLACES=101, PETRI_TRANSITIONS=111} [2023-08-25 19:05:20,161 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2023-08-25 19:05:20,162 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 111 transitions, 637 flow [2023-08-25 19:05:20,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:20,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:20,162 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, 1, 1] [2023-08-25 19:05:20,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:05:20,162 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:20,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:20,163 INFO L85 PathProgramCache]: Analyzing trace with hash -925718991, now seen corresponding path program 1 times [2023-08-25 19:05:20,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:20,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419478302] [2023-08-25 19:05:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:20,297 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 19:05:20,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:20,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419478302] [2023-08-25 19:05:20,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419478302] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:20,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:20,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:20,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032369455] [2023-08-25 19:05:20,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:20,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 19:05:20,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 111 transitions, 637 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:20,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:20,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 19:05:20,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:21,072 INFO L124 PetriNetUnfolderBase]: 5024/10026 cut-off events. [2023-08-25 19:05:21,072 INFO L125 PetriNetUnfolderBase]: For 13597/13638 co-relation queries the response was YES. [2023-08-25 19:05:21,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30963 conditions, 10026 events. 5024/10026 cut-off events. For 13597/13638 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 83291 event pairs, 3175 based on Foata normal form. 13/9465 useless extension candidates. Maximal degree in co-relation 30939. Up to 7126 conditions per place. [2023-08-25 19:05:21,168 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 108 selfloop transitions, 3 changer transitions 13/154 dead transitions. [2023-08-25 19:05:21,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 154 transitions, 1115 flow [2023-08-25 19:05:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1278 transitions. [2023-08-25 19:05:21,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5023584905660378 [2023-08-25 19:05:21,172 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1278 transitions. [2023-08-25 19:05:21,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1278 transitions. [2023-08-25 19:05:21,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:21,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1278 transitions. [2023-08-25 19:05:21,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.5) internal successors, (1278), 4 states have internal predecessors, (1278), 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 19:05:21,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:21,179 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:21,179 INFO L175 Difference]: Start difference. First operand has 101 places, 111 transitions, 637 flow. Second operand 4 states and 1278 transitions. [2023-08-25 19:05:21,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 154 transitions, 1115 flow [2023-08-25 19:05:21,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 154 transitions, 1108 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:21,222 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 648 flow [2023-08-25 19:05:21,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=648, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2023-08-25 19:05:21,223 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 11 predicate places. [2023-08-25 19:05:21,223 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 648 flow [2023-08-25 19:05:21,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:21,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:21,224 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, 1, 1] [2023-08-25 19:05:21,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:05:21,224 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:21,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:21,224 INFO L85 PathProgramCache]: Analyzing trace with hash 411792881, now seen corresponding path program 2 times [2023-08-25 19:05:21,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:21,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219722047] [2023-08-25 19:05:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:21,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:21,318 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 19:05:21,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:21,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219722047] [2023-08-25 19:05:21,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219722047] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:21,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:21,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:21,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480547372] [2023-08-25 19:05:21,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:21,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:21,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:21,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:21,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 19:05:21,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 111 transitions, 648 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:21,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:21,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 19:05:21,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:22,159 INFO L124 PetriNetUnfolderBase]: 4937/9886 cut-off events. [2023-08-25 19:05:22,160 INFO L125 PetriNetUnfolderBase]: For 14620/14657 co-relation queries the response was YES. [2023-08-25 19:05:22,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30782 conditions, 9886 events. 4937/9886 cut-off events. For 14620/14657 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 82448 event pairs, 3349 based on Foata normal form. 9/9309 useless extension candidates. Maximal degree in co-relation 30757. Up to 7736 conditions per place. [2023-08-25 19:05:22,227 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 101 selfloop transitions, 2 changer transitions 14/147 dead transitions. [2023-08-25 19:05:22,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 147 transitions, 1058 flow [2023-08-25 19:05:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1274 transitions. [2023-08-25 19:05:22,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5007861635220126 [2023-08-25 19:05:22,230 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1274 transitions. [2023-08-25 19:05:22,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1274 transitions. [2023-08-25 19:05:22,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:22,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1274 transitions. [2023-08-25 19:05:22,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 318.5) internal successors, (1274), 4 states have internal predecessors, (1274), 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 19:05:22,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:22,237 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:22,237 INFO L175 Difference]: Start difference. First operand has 103 places, 111 transitions, 648 flow. Second operand 4 states and 1274 transitions. [2023-08-25 19:05:22,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 147 transitions, 1058 flow [2023-08-25 19:05:22,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 147 transitions, 1050 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:22,282 INFO L231 Difference]: Finished difference. Result has 105 places, 110 transitions, 639 flow [2023-08-25 19:05:22,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=105, PETRI_TRANSITIONS=110} [2023-08-25 19:05:22,283 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 13 predicate places. [2023-08-25 19:05:22,283 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 110 transitions, 639 flow [2023-08-25 19:05:22,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 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 19:05:22,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:22,283 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, 1, 1, 1, 1] [2023-08-25 19:05:22,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:05:22,284 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:22,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:22,284 INFO L85 PathProgramCache]: Analyzing trace with hash 382058214, now seen corresponding path program 1 times [2023-08-25 19:05:22,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:22,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277759909] [2023-08-25 19:05:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:22,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:22,344 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 19:05:22,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:22,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277759909] [2023-08-25 19:05:22,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277759909] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:22,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:22,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:22,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294741633] [2023-08-25 19:05:22,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:22,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:22,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:22,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:22,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:22,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 19:05:22,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 110 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 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 19:05:22,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:22,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 19:05:22,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:23,207 INFO L124 PetriNetUnfolderBase]: 4618/9363 cut-off events. [2023-08-25 19:05:23,208 INFO L125 PetriNetUnfolderBase]: For 14787/14824 co-relation queries the response was YES. [2023-08-25 19:05:23,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29100 conditions, 9363 events. 4618/9363 cut-off events. For 14787/14824 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 76914 event pairs, 2154 based on Foata normal form. 49/8851 useless extension candidates. Maximal degree in co-relation 29074. Up to 4194 conditions per place. [2023-08-25 19:05:23,265 INFO L140 encePairwiseOnDemand]: 629/636 looper letters, 146 selfloop transitions, 10 changer transitions 7/193 dead transitions. [2023-08-25 19:05:23,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 193 transitions, 1445 flow [2023-08-25 19:05:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1546 transitions. [2023-08-25 19:05:23,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861635220125786 [2023-08-25 19:05:23,269 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1546 transitions. [2023-08-25 19:05:23,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1546 transitions. [2023-08-25 19:05:23,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:23,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1546 transitions. [2023-08-25 19:05:23,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 309.2) internal successors, (1546), 5 states have internal predecessors, (1546), 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 19:05:23,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:23,276 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:23,276 INFO L175 Difference]: Start difference. First operand has 105 places, 110 transitions, 639 flow. Second operand 5 states and 1546 transitions. [2023-08-25 19:05:23,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 193 transitions, 1445 flow [2023-08-25 19:05:23,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 193 transitions, 1433 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:23,332 INFO L231 Difference]: Finished difference. Result has 108 places, 110 transitions, 652 flow [2023-08-25 19:05:23,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=652, PETRI_PLACES=108, PETRI_TRANSITIONS=110} [2023-08-25 19:05:23,332 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 16 predicate places. [2023-08-25 19:05:23,333 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 110 transitions, 652 flow [2023-08-25 19:05:23,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 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 19:05:23,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:23,333 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, 1, 1, 1, 1] [2023-08-25 19:05:23,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:05:23,333 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:23,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:23,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1309489339, now seen corresponding path program 1 times [2023-08-25 19:05:23,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:23,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219903125] [2023-08-25 19:05:23,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:23,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:23,409 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 19:05:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219903125] [2023-08-25 19:05:23,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219903125] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:23,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:23,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:23,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521741526] [2023-08-25 19:05:23,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:23,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:23,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:23,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:23,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:23,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 19:05:23,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 110 transitions, 652 flow. Second operand has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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 19:05:23,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:23,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 19:05:23,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:24,219 INFO L124 PetriNetUnfolderBase]: 4621/9342 cut-off events. [2023-08-25 19:05:24,219 INFO L125 PetriNetUnfolderBase]: For 16461/16489 co-relation queries the response was YES. [2023-08-25 19:05:24,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30045 conditions, 9342 events. 4621/9342 cut-off events. For 16461/16489 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 76215 event pairs, 1992 based on Foata normal form. 12/9003 useless extension candidates. Maximal degree in co-relation 30018. Up to 3507 conditions per place. [2023-08-25 19:05:24,277 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 129 selfloop transitions, 13 changer transitions 1/173 dead transitions. [2023-08-25 19:05:24,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 173 transitions, 1277 flow [2023-08-25 19:05:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1293 transitions. [2023-08-25 19:05:24,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5082547169811321 [2023-08-25 19:05:24,280 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1293 transitions. [2023-08-25 19:05:24,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1293 transitions. [2023-08-25 19:05:24,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:24,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1293 transitions. [2023-08-25 19:05:24,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.25) internal successors, (1293), 4 states have internal predecessors, (1293), 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 19:05:24,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:24,286 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:24,286 INFO L175 Difference]: Start difference. First operand has 108 places, 110 transitions, 652 flow. Second operand 4 states and 1293 transitions. [2023-08-25 19:05:24,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 173 transitions, 1277 flow [2023-08-25 19:05:24,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 173 transitions, 1275 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:24,333 INFO L231 Difference]: Finished difference. Result has 112 places, 114 transitions, 721 flow [2023-08-25 19:05:24,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=721, PETRI_PLACES=112, PETRI_TRANSITIONS=114} [2023-08-25 19:05:24,334 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 20 predicate places. [2023-08-25 19:05:24,334 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 114 transitions, 721 flow [2023-08-25 19:05:24,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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 19:05:24,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:24,335 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, 1, 1, 1, 1] [2023-08-25 19:05:24,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:05:24,335 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:24,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:24,335 INFO L85 PathProgramCache]: Analyzing trace with hash -850784588, now seen corresponding path program 2 times [2023-08-25 19:05:24,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:24,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136445531] [2023-08-25 19:05:24,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:24,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:24,403 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 19:05:24,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:24,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136445531] [2023-08-25 19:05:24,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136445531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:24,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:24,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:24,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94911380] [2023-08-25 19:05:24,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:24,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:24,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:24,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 19:05:24,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 114 transitions, 721 flow. Second operand has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 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 19:05:24,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:24,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 19:05:24,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:25,253 INFO L124 PetriNetUnfolderBase]: 4762/9869 cut-off events. [2023-08-25 19:05:25,253 INFO L125 PetriNetUnfolderBase]: For 17015/17048 co-relation queries the response was YES. [2023-08-25 19:05:25,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31990 conditions, 9869 events. 4762/9869 cut-off events. For 17015/17048 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 83025 event pairs, 993 based on Foata normal form. 27/9488 useless extension candidates. Maximal degree in co-relation 31961. Up to 3177 conditions per place. [2023-08-25 19:05:25,317 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 134 selfloop transitions, 16 changer transitions 3/183 dead transitions. [2023-08-25 19:05:25,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 183 transitions, 1466 flow [2023-08-25 19:05:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:25,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1240 transitions. [2023-08-25 19:05:25,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742138364779874 [2023-08-25 19:05:25,320 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1240 transitions. [2023-08-25 19:05:25,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1240 transitions. [2023-08-25 19:05:25,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:25,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1240 transitions. [2023-08-25 19:05:25,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 19:05:25,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:25,326 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:25,326 INFO L175 Difference]: Start difference. First operand has 112 places, 114 transitions, 721 flow. Second operand 4 states and 1240 transitions. [2023-08-25 19:05:25,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 183 transitions, 1466 flow [2023-08-25 19:05:25,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 183 transitions, 1432 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:25,379 INFO L231 Difference]: Finished difference. Result has 116 places, 115 transitions, 773 flow [2023-08-25 19:05:25,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=773, PETRI_PLACES=116, PETRI_TRANSITIONS=115} [2023-08-25 19:05:25,380 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2023-08-25 19:05:25,380 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 115 transitions, 773 flow [2023-08-25 19:05:25,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 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 19:05:25,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:25,381 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, 1, 1, 1, 1, 1] [2023-08-25 19:05:25,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:05:25,381 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:25,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:25,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1128239340, now seen corresponding path program 1 times [2023-08-25 19:05:25,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:25,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717442977] [2023-08-25 19:05:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:25,433 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 19:05:25,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:25,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717442977] [2023-08-25 19:05:25,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717442977] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:25,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:25,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:25,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293272802] [2023-08-25 19:05:25,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:25,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:25,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:25,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:25,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:25,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 19:05:25,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 115 transitions, 773 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 19:05:25,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:25,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 19:05:25,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:26,054 INFO L124 PetriNetUnfolderBase]: 3408/7082 cut-off events. [2023-08-25 19:05:26,054 INFO L125 PetriNetUnfolderBase]: For 16104/16132 co-relation queries the response was YES. [2023-08-25 19:05:26,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24151 conditions, 7082 events. 3408/7082 cut-off events. For 16104/16132 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 54918 event pairs, 1703 based on Foata normal form. 2/6917 useless extension candidates. Maximal degree in co-relation 24121. Up to 3371 conditions per place. [2023-08-25 19:05:26,092 INFO L140 encePairwiseOnDemand]: 631/636 looper letters, 104 selfloop transitions, 10 changer transitions 0/144 dead transitions. [2023-08-25 19:05:26,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 144 transitions, 1185 flow [2023-08-25 19:05:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2023-08-25 19:05:26,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125786163522013 [2023-08-25 19:05:26,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2023-08-25 19:05:26,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2023-08-25 19:05:26,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:26,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2023-08-25 19:05:26,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 19:05:26,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:26,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:26,099 INFO L175 Difference]: Start difference. First operand has 116 places, 115 transitions, 773 flow. Second operand 3 states and 978 transitions. [2023-08-25 19:05:26,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 144 transitions, 1185 flow [2023-08-25 19:05:26,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 144 transitions, 1164 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 19:05:26,145 INFO L231 Difference]: Finished difference. Result has 116 places, 112 transitions, 765 flow [2023-08-25 19:05:26,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=116, PETRI_TRANSITIONS=112} [2023-08-25 19:05:26,145 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2023-08-25 19:05:26,145 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 112 transitions, 765 flow [2023-08-25 19:05:26,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 19:05:26,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:26,146 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, 1, 1, 1, 1, 1] [2023-08-25 19:05:26,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:05:26,146 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:26,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:26,146 INFO L85 PathProgramCache]: Analyzing trace with hash 956280335, now seen corresponding path program 1 times [2023-08-25 19:05:26,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:26,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449499736] [2023-08-25 19:05:26,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:26,182 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 19:05:26,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:26,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449499736] [2023-08-25 19:05:26,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449499736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:26,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:26,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:26,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362745655] [2023-08-25 19:05:26,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:26,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:26,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:26,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 19:05:26,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 112 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 19:05:26,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:26,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 19:05:26,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:26,777 INFO L124 PetriNetUnfolderBase]: 2660/5725 cut-off events. [2023-08-25 19:05:26,777 INFO L125 PetriNetUnfolderBase]: For 13277/13295 co-relation queries the response was YES. [2023-08-25 19:05:26,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19973 conditions, 5725 events. 2660/5725 cut-off events. For 13277/13295 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 42377 event pairs, 1646 based on Foata normal form. 114/5808 useless extension candidates. Maximal degree in co-relation 19944. Up to 3356 conditions per place. [2023-08-25 19:05:26,808 INFO L140 encePairwiseOnDemand]: 631/636 looper letters, 98 selfloop transitions, 8 changer transitions 0/136 dead transitions. [2023-08-25 19:05:26,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 136 transitions, 1137 flow [2023-08-25 19:05:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2023-08-25 19:05:26,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110062893081762 [2023-08-25 19:05:26,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 975 transitions. [2023-08-25 19:05:26,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 975 transitions. [2023-08-25 19:05:26,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:26,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 975 transitions. [2023-08-25 19:05:26,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 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 19:05:26,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:26,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:26,815 INFO L175 Difference]: Start difference. First operand has 116 places, 112 transitions, 765 flow. Second operand 3 states and 975 transitions. [2023-08-25 19:05:26,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 136 transitions, 1137 flow [2023-08-25 19:05:26,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 136 transitions, 1085 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-25 19:05:26,850 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 762 flow [2023-08-25 19:05:26,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2023-08-25 19:05:26,850 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2023-08-25 19:05:26,850 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 762 flow [2023-08-25 19:05:26,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 19:05:26,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:26,851 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, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:26,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:05:26,851 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:26,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:26,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1439757066, now seen corresponding path program 1 times [2023-08-25 19:05:26,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:26,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467656233] [2023-08-25 19:05:26,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:26,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:26,885 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 19:05:26,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:26,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467656233] [2023-08-25 19:05:26,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467656233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:26,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:26,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:26,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814679200] [2023-08-25 19:05:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:26,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:26,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 19:05:26,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 19:05:26,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:26,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 19:05:26,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:27,373 INFO L124 PetriNetUnfolderBase]: 2484/5157 cut-off events. [2023-08-25 19:05:27,374 INFO L125 PetriNetUnfolderBase]: For 12338/12364 co-relation queries the response was YES. [2023-08-25 19:05:27,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18119 conditions, 5157 events. 2484/5157 cut-off events. For 12338/12364 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 36962 event pairs, 1645 based on Foata normal form. 40/5077 useless extension candidates. Maximal degree in co-relation 18090. Up to 3700 conditions per place. [2023-08-25 19:05:27,402 INFO L140 encePairwiseOnDemand]: 630/636 looper letters, 102 selfloop transitions, 3 changer transitions 17/152 dead transitions. [2023-08-25 19:05:27,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 152 transitions, 1297 flow [2023-08-25 19:05:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:27,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2023-08-25 19:05:27,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131027253668763 [2023-08-25 19:05:27,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2023-08-25 19:05:27,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2023-08-25 19:05:27,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:27,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2023-08-25 19:05:27,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 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 19:05:27,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:27,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 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 19:05:27,408 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 762 flow. Second operand 3 states and 979 transitions. [2023-08-25 19:05:27,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 152 transitions, 1297 flow [2023-08-25 19:05:27,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 152 transitions, 1247 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:27,432 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 744 flow [2023-08-25 19:05:27,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2023-08-25 19:05:27,433 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 27 predicate places. [2023-08-25 19:05:27,433 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 744 flow [2023-08-25 19:05:27,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 19:05:27,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:27,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:27,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 19:05:27,433 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:27,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash 722422972, now seen corresponding path program 1 times [2023-08-25 19:05:27,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:27,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706009065] [2023-08-25 19:05:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:27,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:27,485 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 19:05:27,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:27,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706009065] [2023-08-25 19:05:27,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706009065] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:27,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:27,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:27,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055271516] [2023-08-25 19:05:27,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:27,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:27,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:27,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:27,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:27,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 636 [2023-08-25 19:05:27,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 744 flow. Second operand has 4 states, 4 states have (on average 302.0) internal successors, (1208), 4 states have internal predecessors, (1208), 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 19:05:27,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:27,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 636 [2023-08-25 19:05:27,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:28,002 INFO L124 PetriNetUnfolderBase]: 2488/5169 cut-off events. [2023-08-25 19:05:28,002 INFO L125 PetriNetUnfolderBase]: For 10683/10705 co-relation queries the response was YES. [2023-08-25 19:05:28,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17579 conditions, 5169 events. 2488/5169 cut-off events. For 10683/10705 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 37458 event pairs, 697 based on Foata normal form. 74/5130 useless extension candidates. Maximal degree in co-relation 17549. Up to 2896 conditions per place. [2023-08-25 19:05:28,027 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 131 selfloop transitions, 9 changer transitions 2/172 dead transitions. [2023-08-25 19:05:28,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 172 transitions, 1391 flow [2023-08-25 19:05:28,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1275 transitions. [2023-08-25 19:05:28,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011792452830188 [2023-08-25 19:05:28,030 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1275 transitions. [2023-08-25 19:05:28,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1275 transitions. [2023-08-25 19:05:28,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:28,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1275 transitions. [2023-08-25 19:05:28,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 318.75) internal successors, (1275), 4 states have internal predecessors, (1275), 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 19:05:28,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:28,033 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:28,033 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 744 flow. Second operand 4 states and 1275 transitions. [2023-08-25 19:05:28,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 172 transitions, 1391 flow [2023-08-25 19:05:28,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 172 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:28,053 INFO L231 Difference]: Finished difference. Result has 124 places, 117 transitions, 817 flow [2023-08-25 19:05:28,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=817, PETRI_PLACES=124, PETRI_TRANSITIONS=117} [2023-08-25 19:05:28,054 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 32 predicate places. [2023-08-25 19:05:28,054 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 117 transitions, 817 flow [2023-08-25 19:05:28,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.0) internal successors, (1208), 4 states have internal predecessors, (1208), 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 19:05:28,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:28,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:28,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 19:05:28,054 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:28,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:28,054 INFO L85 PathProgramCache]: Analyzing trace with hash -669167336, now seen corresponding path program 1 times [2023-08-25 19:05:28,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:28,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142756069] [2023-08-25 19:05:28,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:28,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:28,173 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 19:05:28,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:28,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142756069] [2023-08-25 19:05:28,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142756069] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:28,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:28,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:28,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868214223] [2023-08-25 19:05:28,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:28,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:28,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:28,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:28,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:28,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 19:05:28,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 817 flow. Second operand has 5 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 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 19:05:28,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:28,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 19:05:28,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:28,799 INFO L124 PetriNetUnfolderBase]: 2199/4568 cut-off events. [2023-08-25 19:05:28,799 INFO L125 PetriNetUnfolderBase]: For 11154/11180 co-relation queries the response was YES. [2023-08-25 19:05:28,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16178 conditions, 4568 events. 2199/4568 cut-off events. For 11154/11180 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 31929 event pairs, 761 based on Foata normal form. 44/4512 useless extension candidates. Maximal degree in co-relation 16146. Up to 2495 conditions per place. [2023-08-25 19:05:28,824 INFO L140 encePairwiseOnDemand]: 620/636 looper letters, 115 selfloop transitions, 16 changer transitions 28/189 dead transitions. [2023-08-25 19:05:28,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 189 transitions, 1642 flow [2023-08-25 19:05:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1542 transitions. [2023-08-25 19:05:28,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4849056603773585 [2023-08-25 19:05:28,827 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1542 transitions. [2023-08-25 19:05:28,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1542 transitions. [2023-08-25 19:05:28,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:28,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1542 transitions. [2023-08-25 19:05:28,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 308.4) internal successors, (1542), 5 states have internal predecessors, (1542), 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 19:05:28,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:28,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:28,831 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 817 flow. Second operand 5 states and 1542 transitions. [2023-08-25 19:05:28,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 189 transitions, 1642 flow [2023-08-25 19:05:28,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 189 transitions, 1642 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:28,850 INFO L231 Difference]: Finished difference. Result has 131 places, 121 transitions, 944 flow [2023-08-25 19:05:28,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=944, PETRI_PLACES=131, PETRI_TRANSITIONS=121} [2023-08-25 19:05:28,850 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2023-08-25 19:05:28,850 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 121 transitions, 944 flow [2023-08-25 19:05:28,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 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 19:05:28,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:28,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:28,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 19:05:28,851 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:28,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:28,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1626998342, now seen corresponding path program 1 times [2023-08-25 19:05:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:28,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521957353] [2023-08-25 19:05:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:28,995 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 19:05:28,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:28,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521957353] [2023-08-25 19:05:28,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521957353] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:28,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:28,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:05:28,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980582950] [2023-08-25 19:05:28,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:28,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:05:28,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:28,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:05:28,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:05:28,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 636 [2023-08-25 19:05:28,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 121 transitions, 944 flow. Second operand has 6 states, 6 states have (on average 287.1666666666667) internal successors, (1723), 6 states have internal predecessors, (1723), 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 19:05:28,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:28,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 636 [2023-08-25 19:05:28,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:29,520 INFO L124 PetriNetUnfolderBase]: 1995/4260 cut-off events. [2023-08-25 19:05:29,520 INFO L125 PetriNetUnfolderBase]: For 12684/12705 co-relation queries the response was YES. [2023-08-25 19:05:29,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15212 conditions, 4260 events. 1995/4260 cut-off events. For 12684/12705 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 29834 event pairs, 672 based on Foata normal form. 66/4230 useless extension candidates. Maximal degree in co-relation 15176. Up to 3173 conditions per place. [2023-08-25 19:05:29,540 INFO L140 encePairwiseOnDemand]: 621/636 looper letters, 107 selfloop transitions, 17 changer transitions 17/171 dead transitions. [2023-08-25 19:05:29,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 171 transitions, 1573 flow [2023-08-25 19:05:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:29,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1798 transitions. [2023-08-25 19:05:29,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47117400419287214 [2023-08-25 19:05:29,543 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1798 transitions. [2023-08-25 19:05:29,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1798 transitions. [2023-08-25 19:05:29,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:29,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1798 transitions. [2023-08-25 19:05:29,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 299.6666666666667) internal successors, (1798), 6 states have internal predecessors, (1798), 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 19:05:29,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:29,549 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:29,549 INFO L175 Difference]: Start difference. First operand has 131 places, 121 transitions, 944 flow. Second operand 6 states and 1798 transitions. [2023-08-25 19:05:29,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 171 transitions, 1573 flow [2023-08-25 19:05:29,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 171 transitions, 1554 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:29,568 INFO L231 Difference]: Finished difference. Result has 138 places, 127 transitions, 1078 flow [2023-08-25 19:05:29,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=138, PETRI_TRANSITIONS=127} [2023-08-25 19:05:29,569 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 46 predicate places. [2023-08-25 19:05:29,569 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 127 transitions, 1078 flow [2023-08-25 19:05:29,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.1666666666667) internal successors, (1723), 6 states have internal predecessors, (1723), 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 19:05:29,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:29,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:29,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 19:05:29,569 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:29,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1631758923, now seen corresponding path program 1 times [2023-08-25 19:05:29,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:29,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573187628] [2023-08-25 19:05:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:29,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:30,002 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 19:05:30,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:30,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573187628] [2023-08-25 19:05:30,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573187628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:30,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:30,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:30,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718785284] [2023-08-25 19:05:30,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:30,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:30,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:30,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:30,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:30,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 19:05:30,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 1078 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 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 19:05:30,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:30,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 19:05:30,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:30,622 INFO L124 PetriNetUnfolderBase]: 1923/4053 cut-off events. [2023-08-25 19:05:30,622 INFO L125 PetriNetUnfolderBase]: For 12775/12800 co-relation queries the response was YES. [2023-08-25 19:05:30,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15019 conditions, 4053 events. 1923/4053 cut-off events. For 12775/12800 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 27724 event pairs, 606 based on Foata normal form. 11/3959 useless extension candidates. Maximal degree in co-relation 14979. Up to 1996 conditions per place. [2023-08-25 19:05:30,649 INFO L140 encePairwiseOnDemand]: 626/636 looper letters, 139 selfloop transitions, 15 changer transitions 18/202 dead transitions. [2023-08-25 19:05:30,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 202 transitions, 1892 flow [2023-08-25 19:05:30,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1565 transitions. [2023-08-25 19:05:30,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4921383647798742 [2023-08-25 19:05:30,653 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1565 transitions. [2023-08-25 19:05:30,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1565 transitions. [2023-08-25 19:05:30,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:30,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1565 transitions. [2023-08-25 19:05:30,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 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 19:05:30,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:30,657 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:30,657 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 1078 flow. Second operand 5 states and 1565 transitions. [2023-08-25 19:05:30,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 202 transitions, 1892 flow [2023-08-25 19:05:30,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 202 transitions, 1890 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:30,683 INFO L231 Difference]: Finished difference. Result has 144 places, 133 transitions, 1168 flow [2023-08-25 19:05:30,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1168, PETRI_PLACES=144, PETRI_TRANSITIONS=133} [2023-08-25 19:05:30,683 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 52 predicate places. [2023-08-25 19:05:30,683 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 133 transitions, 1168 flow [2023-08-25 19:05:30,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 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 19:05:30,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:30,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:30,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 19:05:30,684 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:30,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:30,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1642844441, now seen corresponding path program 2 times [2023-08-25 19:05:30,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:30,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686003150] [2023-08-25 19:05:30,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:30,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:30,959 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 19:05:30,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:30,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686003150] [2023-08-25 19:05:30,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686003150] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:30,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:30,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:30,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70896957] [2023-08-25 19:05:30,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:30,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:30,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:30,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:30,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:30,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 19:05:30,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 1168 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 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 19:05:30,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:30,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 19:05:30,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:31,588 INFO L124 PetriNetUnfolderBase]: 1893/3994 cut-off events. [2023-08-25 19:05:31,589 INFO L125 PetriNetUnfolderBase]: For 13718/13762 co-relation queries the response was YES. [2023-08-25 19:05:31,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15726 conditions, 3994 events. 1893/3994 cut-off events. For 13718/13762 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 27374 event pairs, 600 based on Foata normal form. 26/3983 useless extension candidates. Maximal degree in co-relation 15683. Up to 2084 conditions per place. [2023-08-25 19:05:31,624 INFO L140 encePairwiseOnDemand]: 626/636 looper letters, 125 selfloop transitions, 12 changer transitions 38/203 dead transitions. [2023-08-25 19:05:31,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 203 transitions, 1985 flow [2023-08-25 19:05:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1565 transitions. [2023-08-25 19:05:31,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4921383647798742 [2023-08-25 19:05:31,626 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1565 transitions. [2023-08-25 19:05:31,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1565 transitions. [2023-08-25 19:05:31,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:31,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1565 transitions. [2023-08-25 19:05:31,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 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 19:05:31,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:31,631 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:31,631 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 1168 flow. Second operand 5 states and 1565 transitions. [2023-08-25 19:05:31,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 203 transitions, 1985 flow [2023-08-25 19:05:31,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 203 transitions, 1981 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:31,669 INFO L231 Difference]: Finished difference. Result has 147 places, 116 transitions, 976 flow [2023-08-25 19:05:31,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=976, PETRI_PLACES=147, PETRI_TRANSITIONS=116} [2023-08-25 19:05:31,670 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 55 predicate places. [2023-08-25 19:05:31,670 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 116 transitions, 976 flow [2023-08-25 19:05:31,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 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 19:05:31,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:31,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:31,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 19:05:31,671 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:31,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:31,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1675603500, now seen corresponding path program 2 times [2023-08-25 19:05:31,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:31,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855783644] [2023-08-25 19:05:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:31,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:31,807 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 19:05:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855783644] [2023-08-25 19:05:31,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855783644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:31,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:31,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:05:31,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010530184] [2023-08-25 19:05:31,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:31,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:05:31,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:05:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:05:31,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 19:05:31,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 116 transitions, 976 flow. Second operand has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 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 19:05:31,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:31,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 19:05:31,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:32,310 INFO L124 PetriNetUnfolderBase]: 1440/3083 cut-off events. [2023-08-25 19:05:32,310 INFO L125 PetriNetUnfolderBase]: For 10800/10811 co-relation queries the response was YES. [2023-08-25 19:05:32,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11875 conditions, 3083 events. 1440/3083 cut-off events. For 10800/10811 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 20148 event pairs, 256 based on Foata normal form. 34/3097 useless extension candidates. Maximal degree in co-relation 11831. Up to 1942 conditions per place. [2023-08-25 19:05:32,336 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 105 selfloop transitions, 10 changer transitions 5/148 dead transitions. [2023-08-25 19:05:32,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 148 transitions, 1347 flow [2023-08-25 19:05:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1805 transitions. [2023-08-25 19:05:32,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4730083857442348 [2023-08-25 19:05:32,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1805 transitions. [2023-08-25 19:05:32,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1805 transitions. [2023-08-25 19:05:32,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:32,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1805 transitions. [2023-08-25 19:05:32,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 300.8333333333333) internal successors, (1805), 6 states have internal predecessors, (1805), 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 19:05:32,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:32,342 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:32,343 INFO L175 Difference]: Start difference. First operand has 147 places, 116 transitions, 976 flow. Second operand 6 states and 1805 transitions. [2023-08-25 19:05:32,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 148 transitions, 1347 flow [2023-08-25 19:05:32,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 148 transitions, 1280 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-08-25 19:05:32,364 INFO L231 Difference]: Finished difference. Result has 141 places, 110 transitions, 836 flow [2023-08-25 19:05:32,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=141, PETRI_TRANSITIONS=110} [2023-08-25 19:05:32,364 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 49 predicate places. [2023-08-25 19:05:32,365 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 110 transitions, 836 flow [2023-08-25 19:05:32,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 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 19:05:32,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:32,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:32,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 19:05:32,365 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:32,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -923783739, now seen corresponding path program 1 times [2023-08-25 19:05:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:32,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382988612] [2023-08-25 19:05:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:32,434 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 19:05:32,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:32,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382988612] [2023-08-25 19:05:32,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382988612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:32,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:32,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065257407] [2023-08-25 19:05:32,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:32,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:32,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:32,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:32,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:32,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 19:05:32,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 110 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:32,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:32,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 19:05:32,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:32,871 INFO L124 PetriNetUnfolderBase]: 1331/2864 cut-off events. [2023-08-25 19:05:32,872 INFO L125 PetriNetUnfolderBase]: For 8057/8087 co-relation queries the response was YES. [2023-08-25 19:05:32,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10810 conditions, 2864 events. 1331/2864 cut-off events. For 8057/8087 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 18616 event pairs, 691 based on Foata normal form. 36/2884 useless extension candidates. Maximal degree in co-relation 10768. Up to 1655 conditions per place. [2023-08-25 19:05:32,896 INFO L140 encePairwiseOnDemand]: 629/636 looper letters, 109 selfloop transitions, 5 changer transitions 24/166 dead transitions. [2023-08-25 19:05:32,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 166 transitions, 1471 flow [2023-08-25 19:05:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1268 transitions. [2023-08-25 19:05:32,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49842767295597484 [2023-08-25 19:05:32,898 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1268 transitions. [2023-08-25 19:05:32,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1268 transitions. [2023-08-25 19:05:32,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:32,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1268 transitions. [2023-08-25 19:05:32,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 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 19:05:32,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:32,902 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:32,902 INFO L175 Difference]: Start difference. First operand has 141 places, 110 transitions, 836 flow. Second operand 4 states and 1268 transitions. [2023-08-25 19:05:32,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 166 transitions, 1471 flow [2023-08-25 19:05:32,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 166 transitions, 1463 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:32,990 INFO L231 Difference]: Finished difference. Result has 143 places, 109 transitions, 833 flow [2023-08-25 19:05:32,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=833, PETRI_PLACES=143, PETRI_TRANSITIONS=109} [2023-08-25 19:05:32,991 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 51 predicate places. [2023-08-25 19:05:32,991 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 109 transitions, 833 flow [2023-08-25 19:05:32,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:32,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:32,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:32,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 19:05:32,992 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:32,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash -221060767, now seen corresponding path program 2 times [2023-08-25 19:05:32,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:32,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589415276] [2023-08-25 19:05:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:32,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:33,065 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 19:05:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589415276] [2023-08-25 19:05:33,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589415276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:33,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:33,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668935044] [2023-08-25 19:05:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:33,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:33,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 19:05:33,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 109 transitions, 833 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:33,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:33,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 19:05:33,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:33,565 INFO L124 PetriNetUnfolderBase]: 1256/2783 cut-off events. [2023-08-25 19:05:33,565 INFO L125 PetriNetUnfolderBase]: For 8442/8459 co-relation queries the response was YES. [2023-08-25 19:05:33,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10565 conditions, 2783 events. 1256/2783 cut-off events. For 8442/8459 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 18095 event pairs, 361 based on Foata normal form. 32/2799 useless extension candidates. Maximal degree in co-relation 10522. Up to 1673 conditions per place. [2023-08-25 19:05:33,593 INFO L140 encePairwiseOnDemand]: 629/636 looper letters, 113 selfloop transitions, 15 changer transitions 0/156 dead transitions. [2023-08-25 19:05:33,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 1404 flow [2023-08-25 19:05:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1559 transitions. [2023-08-25 19:05:33,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.490251572327044 [2023-08-25 19:05:33,597 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1559 transitions. [2023-08-25 19:05:33,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1559 transitions. [2023-08-25 19:05:33,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:33,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1559 transitions. [2023-08-25 19:05:33,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 311.8) internal successors, (1559), 5 states have internal predecessors, (1559), 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 19:05:33,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:33,603 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:33,603 INFO L175 Difference]: Start difference. First operand has 143 places, 109 transitions, 833 flow. Second operand 5 states and 1559 transitions. [2023-08-25 19:05:33,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 1404 flow [2023-08-25 19:05:33,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 156 transitions, 1402 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:33,633 INFO L231 Difference]: Finished difference. Result has 150 places, 117 transitions, 961 flow [2023-08-25 19:05:33,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=961, PETRI_PLACES=150, PETRI_TRANSITIONS=117} [2023-08-25 19:05:33,634 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 58 predicate places. [2023-08-25 19:05:33,634 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 117 transitions, 961 flow [2023-08-25 19:05:33,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:33,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:33,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:33,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 19:05:33,635 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:33,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:33,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1902176649, now seen corresponding path program 3 times [2023-08-25 19:05:33,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:33,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505967115] [2023-08-25 19:05:33,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:33,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:33,711 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 19:05:33,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505967115] [2023-08-25 19:05:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505967115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:33,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:33,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95265628] [2023-08-25 19:05:33,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:33,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:33,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:33,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:33,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 19:05:33,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 117 transitions, 961 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:33,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:33,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 19:05:33,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:34,104 INFO L124 PetriNetUnfolderBase]: 1130/2523 cut-off events. [2023-08-25 19:05:34,104 INFO L125 PetriNetUnfolderBase]: For 9573/9600 co-relation queries the response was YES. [2023-08-25 19:05:34,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9959 conditions, 2523 events. 1130/2523 cut-off events. For 9573/9600 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 16035 event pairs, 613 based on Foata normal form. 40/2549 useless extension candidates. Maximal degree in co-relation 9913. Up to 1667 conditions per place. [2023-08-25 19:05:34,127 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 114 selfloop transitions, 12 changer transitions 5/159 dead transitions. [2023-08-25 19:05:34,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 159 transitions, 1509 flow [2023-08-25 19:05:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1260 transitions. [2023-08-25 19:05:34,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49528301886792453 [2023-08-25 19:05:34,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1260 transitions. [2023-08-25 19:05:34,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1260 transitions. [2023-08-25 19:05:34,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:34,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1260 transitions. [2023-08-25 19:05:34,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 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 19:05:34,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:34,134 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:34,134 INFO L175 Difference]: Start difference. First operand has 150 places, 117 transitions, 961 flow. Second operand 4 states and 1260 transitions. [2023-08-25 19:05:34,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 159 transitions, 1509 flow [2023-08-25 19:05:34,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 159 transitions, 1495 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:34,162 INFO L231 Difference]: Finished difference. Result has 155 places, 119 transitions, 1027 flow [2023-08-25 19:05:34,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1027, PETRI_PLACES=155, PETRI_TRANSITIONS=119} [2023-08-25 19:05:34,163 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 63 predicate places. [2023-08-25 19:05:34,163 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 119 transitions, 1027 flow [2023-08-25 19:05:34,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:34,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:34,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:34,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-25 19:05:34,164 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:34,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash -176018788, now seen corresponding path program 1 times [2023-08-25 19:05:34,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:34,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478910859] [2023-08-25 19:05:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:34,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:34,251 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 19:05:34,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:34,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478910859] [2023-08-25 19:05:34,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478910859] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:34,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:34,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:34,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459609176] [2023-08-25 19:05:34,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:34,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:34,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:34,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:34,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 19:05:34,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 119 transitions, 1027 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:34,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:34,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 19:05:34,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:34,696 INFO L124 PetriNetUnfolderBase]: 1122/2569 cut-off events. [2023-08-25 19:05:34,697 INFO L125 PetriNetUnfolderBase]: For 10243/10260 co-relation queries the response was YES. [2023-08-25 19:05:34,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10260 conditions, 2569 events. 1122/2569 cut-off events. For 10243/10260 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 16561 event pairs, 270 based on Foata normal form. 42/2597 useless extension candidates. Maximal degree in co-relation 10211. Up to 1365 conditions per place. [2023-08-25 19:05:34,713 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 132 selfloop transitions, 19 changer transitions 5/184 dead transitions. [2023-08-25 19:05:34,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 184 transitions, 1785 flow [2023-08-25 19:05:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:05:34,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:05:34,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2129 transitions. [2023-08-25 19:05:34,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47821203953279423 [2023-08-25 19:05:34,715 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2129 transitions. [2023-08-25 19:05:34,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2129 transitions. [2023-08-25 19:05:34,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:34,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2129 transitions. [2023-08-25 19:05:34,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.14285714285717) internal successors, (2129), 7 states have internal predecessors, (2129), 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 19:05:34,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:34,720 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:34,720 INFO L175 Difference]: Start difference. First operand has 155 places, 119 transitions, 1027 flow. Second operand 7 states and 2129 transitions. [2023-08-25 19:05:34,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 184 transitions, 1785 flow [2023-08-25 19:05:34,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 184 transitions, 1761 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:34,744 INFO L231 Difference]: Finished difference. Result has 161 places, 128 transitions, 1124 flow [2023-08-25 19:05:34,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1124, PETRI_PLACES=161, PETRI_TRANSITIONS=128} [2023-08-25 19:05:34,745 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 69 predicate places. [2023-08-25 19:05:34,745 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 128 transitions, 1124 flow [2023-08-25 19:05:34,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:34,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:34,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:34,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 19:05:34,745 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:34,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2001258800, now seen corresponding path program 2 times [2023-08-25 19:05:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:34,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055873030] [2023-08-25 19:05:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:34,849 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 19:05:34,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:34,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055873030] [2023-08-25 19:05:34,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055873030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:34,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:34,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:34,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215090912] [2023-08-25 19:05:34,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:34,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:34,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:34,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:34,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:34,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 19:05:34,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 128 transitions, 1124 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:34,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:34,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 19:05:34,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:35,381 INFO L124 PetriNetUnfolderBase]: 1256/2873 cut-off events. [2023-08-25 19:05:35,381 INFO L125 PetriNetUnfolderBase]: For 11768/11825 co-relation queries the response was YES. [2023-08-25 19:05:35,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11769 conditions, 2873 events. 1256/2873 cut-off events. For 11768/11825 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 19127 event pairs, 465 based on Foata normal form. 36/2886 useless extension candidates. Maximal degree in co-relation 11718. Up to 1411 conditions per place. [2023-08-25 19:05:35,397 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 140 selfloop transitions, 37 changer transitions 6/211 dead transitions. [2023-08-25 19:05:35,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 211 transitions, 2138 flow [2023-08-25 19:05:35,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1842 transitions. [2023-08-25 19:05:35,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827044025157233 [2023-08-25 19:05:35,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1842 transitions. [2023-08-25 19:05:35,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1842 transitions. [2023-08-25 19:05:35,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:35,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1842 transitions. [2023-08-25 19:05:35,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 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 19:05:35,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:35,404 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:35,404 INFO L175 Difference]: Start difference. First operand has 161 places, 128 transitions, 1124 flow. Second operand 6 states and 1842 transitions. [2023-08-25 19:05:35,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 211 transitions, 2138 flow [2023-08-25 19:05:35,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 211 transitions, 2114 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:35,442 INFO L231 Difference]: Finished difference. Result has 169 places, 150 transitions, 1465 flow [2023-08-25 19:05:35,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1465, PETRI_PLACES=169, PETRI_TRANSITIONS=150} [2023-08-25 19:05:35,443 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 77 predicate places. [2023-08-25 19:05:35,443 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 150 transitions, 1465 flow [2023-08-25 19:05:35,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:35,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:35,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:35,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-25 19:05:35,444 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:35,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:35,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2050361702, now seen corresponding path program 3 times [2023-08-25 19:05:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:35,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985393747] [2023-08-25 19:05:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:35,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:35,524 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 19:05:35,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:35,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985393747] [2023-08-25 19:05:35,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985393747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:35,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:35,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919965738] [2023-08-25 19:05:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:35,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:35,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:35,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 19:05:35,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 150 transitions, 1465 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:35,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:35,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 19:05:35,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:36,021 INFO L124 PetriNetUnfolderBase]: 1295/2970 cut-off events. [2023-08-25 19:05:36,021 INFO L125 PetriNetUnfolderBase]: For 15997/16072 co-relation queries the response was YES. [2023-08-25 19:05:36,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13195 conditions, 2970 events. 1295/2970 cut-off events. For 15997/16072 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 19990 event pairs, 463 based on Foata normal form. 68/3012 useless extension candidates. Maximal degree in co-relation 13140. Up to 1352 conditions per place. [2023-08-25 19:05:36,041 INFO L140 encePairwiseOnDemand]: 623/636 looper letters, 139 selfloop transitions, 47 changer transitions 10/224 dead transitions. [2023-08-25 19:05:36,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 224 transitions, 2481 flow [2023-08-25 19:05:36,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:36,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1847 transitions. [2023-08-25 19:05:36,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4840146750524109 [2023-08-25 19:05:36,044 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1847 transitions. [2023-08-25 19:05:36,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1847 transitions. [2023-08-25 19:05:36,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:36,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1847 transitions. [2023-08-25 19:05:36,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 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 19:05:36,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:36,048 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:36,048 INFO L175 Difference]: Start difference. First operand has 169 places, 150 transitions, 1465 flow. Second operand 6 states and 1847 transitions. [2023-08-25 19:05:36,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 224 transitions, 2481 flow [2023-08-25 19:05:36,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 224 transitions, 2479 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:36,089 INFO L231 Difference]: Finished difference. Result has 179 places, 160 transitions, 1795 flow [2023-08-25 19:05:36,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1795, PETRI_PLACES=179, PETRI_TRANSITIONS=160} [2023-08-25 19:05:36,090 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 87 predicate places. [2023-08-25 19:05:36,090 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 160 transitions, 1795 flow [2023-08-25 19:05:36,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:36,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:36,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:36,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-25 19:05:36,091 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:36,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:36,091 INFO L85 PathProgramCache]: Analyzing trace with hash -224316268, now seen corresponding path program 4 times [2023-08-25 19:05:36,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:36,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939288577] [2023-08-25 19:05:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:36,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:36,167 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 19:05:36,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:36,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939288577] [2023-08-25 19:05:36,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939288577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:36,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:36,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:36,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493745986] [2023-08-25 19:05:36,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:36,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:36,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:36,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 19:05:36,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 160 transitions, 1795 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:36,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:36,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 19:05:36,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:36,678 INFO L124 PetriNetUnfolderBase]: 1301/2970 cut-off events. [2023-08-25 19:05:36,678 INFO L125 PetriNetUnfolderBase]: For 22049/22184 co-relation queries the response was YES. [2023-08-25 19:05:36,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14274 conditions, 2970 events. 1301/2970 cut-off events. For 22049/22184 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 20047 event pairs, 581 based on Foata normal form. 44/2983 useless extension candidates. Maximal degree in co-relation 14214. Up to 1604 conditions per place. [2023-08-25 19:05:36,703 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 155 selfloop transitions, 16 changer transitions 16/215 dead transitions. [2023-08-25 19:05:36,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 215 transitions, 2652 flow [2023-08-25 19:05:36,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1541 transitions. [2023-08-25 19:05:36,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48459119496855346 [2023-08-25 19:05:36,706 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1541 transitions. [2023-08-25 19:05:36,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1541 transitions. [2023-08-25 19:05:36,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:36,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1541 transitions. [2023-08-25 19:05:36,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 308.2) internal successors, (1541), 5 states have internal predecessors, (1541), 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 19:05:36,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:36,710 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 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 19:05:36,710 INFO L175 Difference]: Start difference. First operand has 179 places, 160 transitions, 1795 flow. Second operand 5 states and 1541 transitions. [2023-08-25 19:05:36,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 215 transitions, 2652 flow [2023-08-25 19:05:36,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 215 transitions, 2621 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:36,783 INFO L231 Difference]: Finished difference. Result has 184 places, 160 transitions, 1813 flow [2023-08-25 19:05:36,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1768, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1813, PETRI_PLACES=184, PETRI_TRANSITIONS=160} [2023-08-25 19:05:36,783 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2023-08-25 19:05:36,783 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 160 transitions, 1813 flow [2023-08-25 19:05:36,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 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 19:05:36,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:36,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:36,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-25 19:05:36,784 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:36,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1955584896, now seen corresponding path program 5 times [2023-08-25 19:05:36,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:36,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443703425] [2023-08-25 19:05:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:36,842 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 19:05:36,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:36,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443703425] [2023-08-25 19:05:36,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443703425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:36,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:36,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:05:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877249926] [2023-08-25 19:05:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:36,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:36,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:36,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 19:05:36,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 160 transitions, 1813 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:36,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:36,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 19:05:36,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:37,360 INFO L124 PetriNetUnfolderBase]: 1262/2936 cut-off events. [2023-08-25 19:05:37,360 INFO L125 PetriNetUnfolderBase]: For 23009/23102 co-relation queries the response was YES. [2023-08-25 19:05:37,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14166 conditions, 2936 events. 1262/2936 cut-off events. For 23009/23102 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19975 event pairs, 560 based on Foata normal form. 36/2940 useless extension candidates. Maximal degree in co-relation 14104. Up to 1714 conditions per place. [2023-08-25 19:05:37,379 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 144 selfloop transitions, 30 changer transitions 9/211 dead transitions. [2023-08-25 19:05:37,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 211 transitions, 2666 flow [2023-08-25 19:05:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:05:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:05:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1262 transitions. [2023-08-25 19:05:37,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4960691823899371 [2023-08-25 19:05:37,381 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1262 transitions. [2023-08-25 19:05:37,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1262 transitions. [2023-08-25 19:05:37,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:37,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1262 transitions. [2023-08-25 19:05:37,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 315.5) internal successors, (1262), 4 states have internal predecessors, (1262), 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 19:05:37,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:37,383 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 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 19:05:37,384 INFO L175 Difference]: Start difference. First operand has 184 places, 160 transitions, 1813 flow. Second operand 4 states and 1262 transitions. [2023-08-25 19:05:37,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 211 transitions, 2666 flow [2023-08-25 19:05:37,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 211 transitions, 2654 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:37,432 INFO L231 Difference]: Finished difference. Result has 187 places, 164 transitions, 1982 flow [2023-08-25 19:05:37,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1803, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1982, PETRI_PLACES=187, PETRI_TRANSITIONS=164} [2023-08-25 19:05:37,432 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 95 predicate places. [2023-08-25 19:05:37,432 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 164 transitions, 1982 flow [2023-08-25 19:05:37,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 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 19:05:37,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:37,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:37,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-25 19:05:37,433 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:37,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash 656380465, now seen corresponding path program 1 times [2023-08-25 19:05:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:37,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129226048] [2023-08-25 19:05:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:37,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:37,524 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 19:05:37,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:37,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129226048] [2023-08-25 19:05:37,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129226048] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:37,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:37,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:37,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049436569] [2023-08-25 19:05:37,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:37,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:37,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:37,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:37,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:37,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 164 transitions, 1982 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:37,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:37,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:37,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:38,007 INFO L124 PetriNetUnfolderBase]: 1225/2775 cut-off events. [2023-08-25 19:05:38,007 INFO L125 PetriNetUnfolderBase]: For 24947/25010 co-relation queries the response was YES. [2023-08-25 19:05:38,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14285 conditions, 2775 events. 1225/2775 cut-off events. For 24947/25010 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 18381 event pairs, 249 based on Foata normal form. 40/2793 useless extension candidates. Maximal degree in co-relation 14221. Up to 715 conditions per place. [2023-08-25 19:05:38,028 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 159 selfloop transitions, 39 changer transitions 29/255 dead transitions. [2023-08-25 19:05:38,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 255 transitions, 3478 flow [2023-08-25 19:05:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:05:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:05:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2133 transitions. [2023-08-25 19:05:38,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47911051212938005 [2023-08-25 19:05:38,030 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2133 transitions. [2023-08-25 19:05:38,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2133 transitions. [2023-08-25 19:05:38,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:38,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2133 transitions. [2023-08-25 19:05:38,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.7142857142857) internal successors, (2133), 7 states have internal predecessors, (2133), 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 19:05:38,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:38,036 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:38,036 INFO L175 Difference]: Start difference. First operand has 187 places, 164 transitions, 1982 flow. Second operand 7 states and 2133 transitions. [2023-08-25 19:05:38,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 255 transitions, 3478 flow [2023-08-25 19:05:38,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 255 transitions, 3417 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:38,099 INFO L231 Difference]: Finished difference. Result has 192 places, 175 transitions, 2178 flow [2023-08-25 19:05:38,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2178, PETRI_PLACES=192, PETRI_TRANSITIONS=175} [2023-08-25 19:05:38,099 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 100 predicate places. [2023-08-25 19:05:38,100 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 175 transitions, 2178 flow [2023-08-25 19:05:38,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:38,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:38,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:38,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-25 19:05:38,100 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:38,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1088416119, now seen corresponding path program 2 times [2023-08-25 19:05:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443514775] [2023-08-25 19:05:38,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:38,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:38,200 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 19:05:38,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:38,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443514775] [2023-08-25 19:05:38,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443514775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:38,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:38,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:38,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393266866] [2023-08-25 19:05:38,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:38,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:38,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:38,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:38,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:38,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:38,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 175 transitions, 2178 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:38,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:38,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:38,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:38,734 INFO L124 PetriNetUnfolderBase]: 1138/2643 cut-off events. [2023-08-25 19:05:38,734 INFO L125 PetriNetUnfolderBase]: For 24281/24350 co-relation queries the response was YES. [2023-08-25 19:05:38,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13708 conditions, 2643 events. 1138/2643 cut-off events. For 24281/24350 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 17533 event pairs, 214 based on Foata normal form. 38/2656 useless extension candidates. Maximal degree in co-relation 13643. Up to 863 conditions per place. [2023-08-25 19:05:38,753 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 177 selfloop transitions, 24 changer transitions 29/258 dead transitions. [2023-08-25 19:05:38,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 258 transitions, 3553 flow [2023-08-25 19:05:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:05:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:05:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2129 transitions. [2023-08-25 19:05:38,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47821203953279423 [2023-08-25 19:05:38,755 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2129 transitions. [2023-08-25 19:05:38,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2129 transitions. [2023-08-25 19:05:38,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:38,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2129 transitions. [2023-08-25 19:05:38,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.14285714285717) internal successors, (2129), 7 states have internal predecessors, (2129), 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 19:05:38,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:38,759 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:38,759 INFO L175 Difference]: Start difference. First operand has 192 places, 175 transitions, 2178 flow. Second operand 7 states and 2129 transitions. [2023-08-25 19:05:38,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 258 transitions, 3553 flow [2023-08-25 19:05:38,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 258 transitions, 3548 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:38,818 INFO L231 Difference]: Finished difference. Result has 199 places, 175 transitions, 2243 flow [2023-08-25 19:05:38,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2175, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2243, PETRI_PLACES=199, PETRI_TRANSITIONS=175} [2023-08-25 19:05:38,818 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 107 predicate places. [2023-08-25 19:05:38,819 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 175 transitions, 2243 flow [2023-08-25 19:05:38,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:38,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:38,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:38,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-25 19:05:38,819 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:38,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:38,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1480170513, now seen corresponding path program 3 times [2023-08-25 19:05:38,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:38,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170379881] [2023-08-25 19:05:38,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:38,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:38,936 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 19:05:38,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:38,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170379881] [2023-08-25 19:05:38,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170379881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:38,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:38,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140414622] [2023-08-25 19:05:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:38,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:38,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:38,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:38,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:38,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 175 transitions, 2243 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:38,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:38,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:38,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:39,388 INFO L124 PetriNetUnfolderBase]: 1076/2553 cut-off events. [2023-08-25 19:05:39,388 INFO L125 PetriNetUnfolderBase]: For 25182/25247 co-relation queries the response was YES. [2023-08-25 19:05:39,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13622 conditions, 2553 events. 1076/2553 cut-off events. For 25182/25247 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17006 event pairs, 259 based on Foata normal form. 40/2571 useless extension candidates. Maximal degree in co-relation 13555. Up to 763 conditions per place. [2023-08-25 19:05:39,404 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 160 selfloop transitions, 58 changer transitions 10/256 dead transitions. [2023-08-25 19:05:39,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 256 transitions, 3620 flow [2023-08-25 19:05:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:39,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1841 transitions. [2023-08-25 19:05:39,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48244234800838576 [2023-08-25 19:05:39,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1841 transitions. [2023-08-25 19:05:39,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1841 transitions. [2023-08-25 19:05:39,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:39,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1841 transitions. [2023-08-25 19:05:39,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.8333333333333) internal successors, (1841), 6 states have internal predecessors, (1841), 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 19:05:39,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:39,411 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:39,411 INFO L175 Difference]: Start difference. First operand has 199 places, 175 transitions, 2243 flow. Second operand 6 states and 1841 transitions. [2023-08-25 19:05:39,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 256 transitions, 3620 flow [2023-08-25 19:05:39,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 256 transitions, 3510 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-25 19:05:39,477 INFO L231 Difference]: Finished difference. Result has 203 places, 190 transitions, 2566 flow [2023-08-25 19:05:39,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2177, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2566, PETRI_PLACES=203, PETRI_TRANSITIONS=190} [2023-08-25 19:05:39,477 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 111 predicate places. [2023-08-25 19:05:39,478 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 190 transitions, 2566 flow [2023-08-25 19:05:39,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:39,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:39,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:39,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-25 19:05:39,478 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:39,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1861070989, now seen corresponding path program 4 times [2023-08-25 19:05:39,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:39,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177821867] [2023-08-25 19:05:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:39,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:39,566 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 19:05:39,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:39,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177821867] [2023-08-25 19:05:39,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177821867] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:39,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:39,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:39,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428951621] [2023-08-25 19:05:39,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:39,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:39,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:39,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:39,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:39,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 190 transitions, 2566 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:39,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:39,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:39,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:39,973 INFO L124 PetriNetUnfolderBase]: 1083/2572 cut-off events. [2023-08-25 19:05:39,973 INFO L125 PetriNetUnfolderBase]: For 27680/27740 co-relation queries the response was YES. [2023-08-25 19:05:39,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14337 conditions, 2572 events. 1083/2572 cut-off events. For 27680/27740 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 17186 event pairs, 246 based on Foata normal form. 22/2563 useless extension candidates. Maximal degree in co-relation 14267. Up to 1064 conditions per place. [2023-08-25 19:05:39,992 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 179 selfloop transitions, 50 changer transitions 9/266 dead transitions. [2023-08-25 19:05:39,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 266 transitions, 3859 flow [2023-08-25 19:05:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1841 transitions. [2023-08-25 19:05:39,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48244234800838576 [2023-08-25 19:05:39,994 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1841 transitions. [2023-08-25 19:05:39,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1841 transitions. [2023-08-25 19:05:39,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:39,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1841 transitions. [2023-08-25 19:05:39,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.8333333333333) internal successors, (1841), 6 states have internal predecessors, (1841), 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 19:05:39,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:39,998 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:39,998 INFO L175 Difference]: Start difference. First operand has 203 places, 190 transitions, 2566 flow. Second operand 6 states and 1841 transitions. [2023-08-25 19:05:39,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 266 transitions, 3859 flow [2023-08-25 19:05:40,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 266 transitions, 3835 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:40,066 INFO L231 Difference]: Finished difference. Result has 211 places, 201 transitions, 2882 flow [2023-08-25 19:05:40,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2550, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2882, PETRI_PLACES=211, PETRI_TRANSITIONS=201} [2023-08-25 19:05:40,066 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 119 predicate places. [2023-08-25 19:05:40,066 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 201 transitions, 2882 flow [2023-08-25 19:05:40,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:40,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:40,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:40,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-25 19:05:40,067 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:40,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2030704827, now seen corresponding path program 5 times [2023-08-25 19:05:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854535919] [2023-08-25 19:05:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:40,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:40,167 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 19:05:40,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:40,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854535919] [2023-08-25 19:05:40,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854535919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:40,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:40,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:40,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866971166] [2023-08-25 19:05:40,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:40,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:40,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:40,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:40,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:40,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:40,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 201 transitions, 2882 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:40,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:40,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:40,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:40,798 INFO L124 PetriNetUnfolderBase]: 1240/2883 cut-off events. [2023-08-25 19:05:40,798 INFO L125 PetriNetUnfolderBase]: For 37716/37832 co-relation queries the response was YES. [2023-08-25 19:05:40,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17031 conditions, 2883 events. 1240/2883 cut-off events. For 37716/37832 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 19452 event pairs, 354 based on Foata normal form. 68/2924 useless extension candidates. Maximal degree in co-relation 16957. Up to 1230 conditions per place. [2023-08-25 19:05:40,833 INFO L140 encePairwiseOnDemand]: 623/636 looper letters, 201 selfloop transitions, 49 changer transitions 24/302 dead transitions. [2023-08-25 19:05:40,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 302 transitions, 4936 flow [2023-08-25 19:05:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:40,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1840 transitions. [2023-08-25 19:05:40,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48218029350104824 [2023-08-25 19:05:40,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1840 transitions. [2023-08-25 19:05:40,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1840 transitions. [2023-08-25 19:05:40,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:40,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1840 transitions. [2023-08-25 19:05:40,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.6666666666667) internal successors, (1840), 6 states have internal predecessors, (1840), 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 19:05:40,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:40,841 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:40,841 INFO L175 Difference]: Start difference. First operand has 211 places, 201 transitions, 2882 flow. Second operand 6 states and 1840 transitions. [2023-08-25 19:05:40,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 302 transitions, 4936 flow [2023-08-25 19:05:40,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 302 transitions, 4830 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:40,965 INFO L231 Difference]: Finished difference. Result has 219 places, 207 transitions, 3226 flow [2023-08-25 19:05:40,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2721, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3226, PETRI_PLACES=219, PETRI_TRANSITIONS=207} [2023-08-25 19:05:40,966 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 127 predicate places. [2023-08-25 19:05:40,966 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 207 transitions, 3226 flow [2023-08-25 19:05:40,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:40,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:40,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:40,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-25 19:05:40,967 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:40,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:40,967 INFO L85 PathProgramCache]: Analyzing trace with hash 715178215, now seen corresponding path program 6 times [2023-08-25 19:05:40,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:40,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398471494] [2023-08-25 19:05:40,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:40,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:41,057 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 19:05:41,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:41,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398471494] [2023-08-25 19:05:41,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398471494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:41,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:41,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828296632] [2023-08-25 19:05:41,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:41,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:41,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:41,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:41,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:41,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:41,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 207 transitions, 3226 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:41,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:41,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:41,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:41,643 INFO L124 PetriNetUnfolderBase]: 1119/2632 cut-off events. [2023-08-25 19:05:41,643 INFO L125 PetriNetUnfolderBase]: For 38766/38858 co-relation queries the response was YES. [2023-08-25 19:05:41,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16275 conditions, 2632 events. 1119/2632 cut-off events. For 38766/38858 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 17859 event pairs, 191 based on Foata normal form. 38/2650 useless extension candidates. Maximal degree in co-relation 16197. Up to 725 conditions per place. [2023-08-25 19:05:41,668 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 195 selfloop transitions, 52 changer transitions 21/296 dead transitions. [2023-08-25 19:05:41,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 296 transitions, 4950 flow [2023-08-25 19:05:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1839 transitions. [2023-08-25 19:05:41,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48191823899371067 [2023-08-25 19:05:41,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1839 transitions. [2023-08-25 19:05:41,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1839 transitions. [2023-08-25 19:05:41,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:41,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1839 transitions. [2023-08-25 19:05:41,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.5) internal successors, (1839), 6 states have internal predecessors, (1839), 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 19:05:41,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:41,676 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:41,676 INFO L175 Difference]: Start difference. First operand has 219 places, 207 transitions, 3226 flow. Second operand 6 states and 1839 transitions. [2023-08-25 19:05:41,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 296 transitions, 4950 flow [2023-08-25 19:05:41,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 296 transitions, 4755 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-25 19:05:41,793 INFO L231 Difference]: Finished difference. Result has 220 places, 201 transitions, 3156 flow [2023-08-25 19:05:41,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3156, PETRI_PLACES=220, PETRI_TRANSITIONS=201} [2023-08-25 19:05:41,794 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 128 predicate places. [2023-08-25 19:05:41,794 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 201 transitions, 3156 flow [2023-08-25 19:05:41,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:41,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:41,795 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-25 19:05:41,795 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:41,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1248305083, now seen corresponding path program 1 times [2023-08-25 19:05:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:41,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528951915] [2023-08-25 19:05:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:41,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:41,911 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 19:05:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:41,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528951915] [2023-08-25 19:05:41,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528951915] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:41,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:41,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:41,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235254025] [2023-08-25 19:05:41,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:41,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:41,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:41,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:41,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:41,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:41,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 201 transitions, 3156 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:41,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:41,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:41,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:42,549 INFO L124 PetriNetUnfolderBase]: 1140/2681 cut-off events. [2023-08-25 19:05:42,550 INFO L125 PetriNetUnfolderBase]: For 39412/39552 co-relation queries the response was YES. [2023-08-25 19:05:42,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16406 conditions, 2681 events. 1140/2681 cut-off events. For 39412/39552 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 18165 event pairs, 232 based on Foata normal form. 66/2724 useless extension candidates. Maximal degree in co-relation 16329. Up to 1059 conditions per place. [2023-08-25 19:05:42,583 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 172 selfloop transitions, 44 changer transitions 23/267 dead transitions. [2023-08-25 19:05:42,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 267 transitions, 4590 flow [2023-08-25 19:05:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:42,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1825 transitions. [2023-08-25 19:05:42,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4782494758909853 [2023-08-25 19:05:42,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1825 transitions. [2023-08-25 19:05:42,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1825 transitions. [2023-08-25 19:05:42,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:42,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1825 transitions. [2023-08-25 19:05:42,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 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 19:05:42,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:42,600 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:42,600 INFO L175 Difference]: Start difference. First operand has 220 places, 201 transitions, 3156 flow. Second operand 6 states and 1825 transitions. [2023-08-25 19:05:42,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 267 transitions, 4590 flow [2023-08-25 19:05:42,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 267 transitions, 4506 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-08-25 19:05:42,710 INFO L231 Difference]: Finished difference. Result has 225 places, 207 transitions, 3349 flow [2023-08-25 19:05:42,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=3073, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3349, PETRI_PLACES=225, PETRI_TRANSITIONS=207} [2023-08-25 19:05:42,711 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 133 predicate places. [2023-08-25 19:05:42,711 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 207 transitions, 3349 flow [2023-08-25 19:05:42,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:42,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:42,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:42,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-25 19:05:42,712 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:42,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash -582248911, now seen corresponding path program 2 times [2023-08-25 19:05:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:42,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153498086] [2023-08-25 19:05:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:42,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:42,790 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 19:05:42,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:42,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153498086] [2023-08-25 19:05:42,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153498086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:42,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:42,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:42,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207782297] [2023-08-25 19:05:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:42,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:42,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:42,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:42,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:42,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 207 transitions, 3349 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:42,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:42,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:42,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:43,397 INFO L124 PetriNetUnfolderBase]: 1118/2651 cut-off events. [2023-08-25 19:05:43,397 INFO L125 PetriNetUnfolderBase]: For 41397/41543 co-relation queries the response was YES. [2023-08-25 19:05:43,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16456 conditions, 2651 events. 1118/2651 cut-off events. For 41397/41543 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 18016 event pairs, 275 based on Foata normal form. 50/2679 useless extension candidates. Maximal degree in co-relation 16377. Up to 767 conditions per place. [2023-08-25 19:05:43,422 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 172 selfloop transitions, 57 changer transitions 15/272 dead transitions. [2023-08-25 19:05:43,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 4778 flow [2023-08-25 19:05:43,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:05:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:05:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2120 transitions. [2023-08-25 19:05:43,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-25 19:05:43,424 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2120 transitions. [2023-08-25 19:05:43,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2120 transitions. [2023-08-25 19:05:43,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:43,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2120 transitions. [2023-08-25 19:05:43,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 302.85714285714283) internal successors, (2120), 7 states have internal predecessors, (2120), 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 19:05:43,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:43,430 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:43,430 INFO L175 Difference]: Start difference. First operand has 225 places, 207 transitions, 3349 flow. Second operand 7 states and 2120 transitions. [2023-08-25 19:05:43,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 4778 flow [2023-08-25 19:05:43,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 272 transitions, 4719 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-25 19:05:43,561 INFO L231 Difference]: Finished difference. Result has 231 places, 213 transitions, 3544 flow [2023-08-25 19:05:43,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=3304, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3544, PETRI_PLACES=231, PETRI_TRANSITIONS=213} [2023-08-25 19:05:43,562 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 139 predicate places. [2023-08-25 19:05:43,562 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 213 transitions, 3544 flow [2023-08-25 19:05:43,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:43,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:43,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:43,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-25 19:05:43,562 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:43,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:43,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1186101719, now seen corresponding path program 3 times [2023-08-25 19:05:43,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:43,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876053479] [2023-08-25 19:05:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:43,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:43,642 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 19:05:43,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:43,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876053479] [2023-08-25 19:05:43,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876053479] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:43,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:43,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141125261] [2023-08-25 19:05:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:43,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:43,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:43,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:43,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 213 transitions, 3544 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:43,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:43,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:43,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:44,168 INFO L124 PetriNetUnfolderBase]: 1098/2594 cut-off events. [2023-08-25 19:05:44,168 INFO L125 PetriNetUnfolderBase]: For 43220/43340 co-relation queries the response was YES. [2023-08-25 19:05:44,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16263 conditions, 2594 events. 1098/2594 cut-off events. For 43220/43340 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 17604 event pairs, 212 based on Foata normal form. 50/2620 useless extension candidates. Maximal degree in co-relation 16183. Up to 940 conditions per place. [2023-08-25 19:05:44,186 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 154 selfloop transitions, 22 changer transitions 64/268 dead transitions. [2023-08-25 19:05:44,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 268 transitions, 4701 flow [2023-08-25 19:05:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:05:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:05:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2115 transitions. [2023-08-25 19:05:44,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4750673854447439 [2023-08-25 19:05:44,188 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2115 transitions. [2023-08-25 19:05:44,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2115 transitions. [2023-08-25 19:05:44,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:44,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2115 transitions. [2023-08-25 19:05:44,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 302.14285714285717) internal successors, (2115), 7 states have internal predecessors, (2115), 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 19:05:44,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:44,193 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 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 19:05:44,193 INFO L175 Difference]: Start difference. First operand has 231 places, 213 transitions, 3544 flow. Second operand 7 states and 2115 transitions. [2023-08-25 19:05:44,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 268 transitions, 4701 flow [2023-08-25 19:05:44,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 268 transitions, 4618 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-25 19:05:44,298 INFO L231 Difference]: Finished difference. Result has 235 places, 181 transitions, 2852 flow [2023-08-25 19:05:44,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=3424, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2852, PETRI_PLACES=235, PETRI_TRANSITIONS=181} [2023-08-25 19:05:44,299 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 143 predicate places. [2023-08-25 19:05:44,299 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 181 transitions, 2852 flow [2023-08-25 19:05:44,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:44,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:44,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:44,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-25 19:05:44,299 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:44,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:44,299 INFO L85 PathProgramCache]: Analyzing trace with hash 722456721, now seen corresponding path program 4 times [2023-08-25 19:05:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:44,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904684219] [2023-08-25 19:05:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:44,379 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 19:05:44,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:44,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904684219] [2023-08-25 19:05:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904684219] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:44,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381993680] [2023-08-25 19:05:44,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:44,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:44,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:44,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:44,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:44,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:44,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 181 transitions, 2852 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:44,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:44,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:44,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:44,878 INFO L124 PetriNetUnfolderBase]: 909/2234 cut-off events. [2023-08-25 19:05:44,879 INFO L125 PetriNetUnfolderBase]: For 33363/33457 co-relation queries the response was YES. [2023-08-25 19:05:44,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13800 conditions, 2234 events. 909/2234 cut-off events. For 33363/33457 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 15110 event pairs, 223 based on Foata normal form. 40/2259 useless extension candidates. Maximal degree in co-relation 13721. Up to 739 conditions per place. [2023-08-25 19:05:44,901 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 138 selfloop transitions, 55 changer transitions 14/235 dead transitions. [2023-08-25 19:05:44,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 235 transitions, 3894 flow [2023-08-25 19:05:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1836 transitions. [2023-08-25 19:05:44,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4811320754716981 [2023-08-25 19:05:44,903 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1836 transitions. [2023-08-25 19:05:44,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1836 transitions. [2023-08-25 19:05:44,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:44,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1836 transitions. [2023-08-25 19:05:44,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.0) internal successors, (1836), 6 states have internal predecessors, (1836), 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 19:05:44,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:44,908 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:44,908 INFO L175 Difference]: Start difference. First operand has 235 places, 181 transitions, 2852 flow. Second operand 6 states and 1836 transitions. [2023-08-25 19:05:44,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 235 transitions, 3894 flow [2023-08-25 19:05:44,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 235 transitions, 3754 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-25 19:05:45,000 INFO L231 Difference]: Finished difference. Result has 234 places, 183 transitions, 2905 flow [2023-08-25 19:05:45,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2719, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2905, PETRI_PLACES=234, PETRI_TRANSITIONS=183} [2023-08-25 19:05:45,000 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 142 predicate places. [2023-08-25 19:05:45,000 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 183 transitions, 2905 flow [2023-08-25 19:05:45,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:45,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:45,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:45,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-25 19:05:45,001 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:45,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1236082297, now seen corresponding path program 5 times [2023-08-25 19:05:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:45,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804117043] [2023-08-25 19:05:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:45,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:45,084 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 19:05:45,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:45,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804117043] [2023-08-25 19:05:45,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804117043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:45,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:45,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102493908] [2023-08-25 19:05:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:45,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:45,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:45,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:45,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:45,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:45,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 183 transitions, 2905 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:45,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:45,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:45,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:45,534 INFO L124 PetriNetUnfolderBase]: 1060/2559 cut-off events. [2023-08-25 19:05:45,534 INFO L125 PetriNetUnfolderBase]: For 40977/41105 co-relation queries the response was YES. [2023-08-25 19:05:45,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16248 conditions, 2559 events. 1060/2559 cut-off events. For 40977/41105 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 17980 event pairs, 171 based on Foata normal form. 50/2587 useless extension candidates. Maximal degree in co-relation 16172. Up to 747 conditions per place. [2023-08-25 19:05:45,556 INFO L140 encePairwiseOnDemand]: 622/636 looper letters, 168 selfloop transitions, 43 changer transitions 36/275 dead transitions. [2023-08-25 19:05:45,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 275 transitions, 4790 flow [2023-08-25 19:05:45,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:45,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2023-08-25 19:05:45,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4798218029350105 [2023-08-25 19:05:45,560 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1831 transitions. [2023-08-25 19:05:45,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1831 transitions. [2023-08-25 19:05:45,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:45,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1831 transitions. [2023-08-25 19:05:45,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.1666666666667) internal successors, (1831), 6 states have internal predecessors, (1831), 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 19:05:45,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:45,564 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:45,564 INFO L175 Difference]: Start difference. First operand has 234 places, 183 transitions, 2905 flow. Second operand 6 states and 1831 transitions. [2023-08-25 19:05:45,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 275 transitions, 4790 flow [2023-08-25 19:05:45,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 275 transitions, 4718 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-25 19:05:45,665 INFO L231 Difference]: Finished difference. Result has 238 places, 184 transitions, 3048 flow [2023-08-25 19:05:45,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2744, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3048, PETRI_PLACES=238, PETRI_TRANSITIONS=184} [2023-08-25 19:05:45,665 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 146 predicate places. [2023-08-25 19:05:45,665 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 184 transitions, 3048 flow [2023-08-25 19:05:45,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:45,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:45,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:45,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-25 19:05:45,666 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 19:05:45,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:45,666 INFO L85 PathProgramCache]: Analyzing trace with hash -239202067, now seen corresponding path program 6 times [2023-08-25 19:05:45,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:45,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216982335] [2023-08-25 19:05:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:45,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:45,775 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 19:05:45,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:45,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216982335] [2023-08-25 19:05:45,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216982335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:45,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:05:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261799254] [2023-08-25 19:05:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:45,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:05:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:05:45,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:05:45,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 19:05:45,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 184 transitions, 3048 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:45,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:45,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 19:05:45,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:46,224 INFO L124 PetriNetUnfolderBase]: 990/2405 cut-off events. [2023-08-25 19:05:46,224 INFO L125 PetriNetUnfolderBase]: For 41097/41208 co-relation queries the response was YES. [2023-08-25 19:05:46,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15639 conditions, 2405 events. 990/2405 cut-off events. For 41097/41208 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 16988 event pairs, 270 based on Foata normal form. 44/2428 useless extension candidates. Maximal degree in co-relation 15562. Up to 904 conditions per place. [2023-08-25 19:05:46,241 INFO L140 encePairwiseOnDemand]: 623/636 looper letters, 0 selfloop transitions, 0 changer transitions 246/246 dead transitions. [2023-08-25 19:05:46,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 246 transitions, 4298 flow [2023-08-25 19:05:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:05:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:05:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1828 transitions. [2023-08-25 19:05:46,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4790356394129979 [2023-08-25 19:05:46,243 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1828 transitions. [2023-08-25 19:05:46,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1828 transitions. [2023-08-25 19:05:46,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:46,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1828 transitions. [2023-08-25 19:05:46,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.6666666666667) internal successors, (1828), 6 states have internal predecessors, (1828), 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 19:05:46,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:46,246 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 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 19:05:46,247 INFO L175 Difference]: Start difference. First operand has 238 places, 184 transitions, 3048 flow. Second operand 6 states and 1828 transitions. [2023-08-25 19:05:46,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 246 transitions, 4298 flow [2023-08-25 19:05:46,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 246 transitions, 4041 flow, removed 8 selfloop flow, removed 14 redundant places. [2023-08-25 19:05:46,341 INFO L231 Difference]: Finished difference. Result has 225 places, 0 transitions, 0 flow [2023-08-25 19:05:46,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2671, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=225, PETRI_TRANSITIONS=0} [2023-08-25 19:05:46,341 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 133 predicate places. [2023-08-25 19:05:46,341 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 0 transitions, 0 flow [2023-08-25 19:05:46,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 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 19:05:46,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (58 of 59 remaining) [2023-08-25 19:05:46,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2023-08-25 19:05:46,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2023-08-25 19:05:46,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2023-08-25 19:05:46,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2023-08-25 19:05:46,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (24 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2023-08-25 19:05:46,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2023-08-25 19:05:46,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2023-08-25 19:05:46,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2023-08-25 19:05:46,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2023-08-25 19:05:46,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2023-08-25 19:05:46,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-25 19:05:46,348 INFO L445 BasicCegarLoop]: Path program histogram: [6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:46,352 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:05:46,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:05:46,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:05:46 BasicIcfg [2023-08-25 19:05:46,355 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:05:46,355 INFO L158 Benchmark]: Toolchain (without parser) took 45785.94ms. Allocated memory was 348.1MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 307.3MB in the beginning and 808.5MB in the end (delta: -501.2MB). Peak memory consumption was 990.9MB. Max. memory is 16.0GB. [2023-08-25 19:05:46,355 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 348.1MB. Free memory was 325.6MB in the beginning and 325.4MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:05:46,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.07ms. Allocated memory is still 348.1MB. Free memory was 306.3MB in the beginning and 294.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 19:05:46,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.69ms. Allocated memory is still 348.1MB. Free memory was 294.7MB in the beginning and 292.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:05:46,356 INFO L158 Benchmark]: Boogie Preprocessor took 45.97ms. Allocated memory is still 348.1MB. Free memory was 292.6MB in the beginning and 290.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:05:46,356 INFO L158 Benchmark]: RCFGBuilder took 634.54ms. Allocated memory is still 348.1MB. Free memory was 290.5MB in the beginning and 265.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 19:05:46,356 INFO L158 Benchmark]: TraceAbstraction took 44809.70ms. Allocated memory was 348.1MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 264.3MB in the beginning and 808.5MB in the end (delta: -544.2MB). Peak memory consumption was 946.9MB. Max. memory is 16.0GB. [2023-08-25 19:05:46,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 348.1MB. Free memory was 325.6MB in the beginning and 325.4MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 222.07ms. Allocated memory is still 348.1MB. Free memory was 306.3MB in the beginning and 294.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 67.69ms. Allocated memory is still 348.1MB. Free memory was 294.7MB in the beginning and 292.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.97ms. Allocated memory is still 348.1MB. Free memory was 292.6MB in the beginning and 290.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 634.54ms. Allocated memory is still 348.1MB. Free memory was 290.5MB in the beginning and 265.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 44809.70ms. Allocated memory was 348.1MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 264.3MB in the beginning and 808.5MB in the end (delta: -544.2MB). Peak memory consumption was 946.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 297 PlacesBefore, 92 PlacesAfterwards, 312 TransitionsBefore, 98 TransitionsAfterwards, 21716 CoEnabledTransitionPairs, 9 FixpointIterations, 127 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 38 ConcurrentYvCompositions, 9 ChoiceCompositions, 313 TotalNumberOfCompositions, 82119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26900, independent: 25697, independent conditional: 0, independent unconditional: 25697, dependent: 1203, dependent conditional: 0, dependent unconditional: 1203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12052, independent: 11928, independent conditional: 0, independent unconditional: 11928, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26900, independent: 13769, independent conditional: 0, independent unconditional: 13769, dependent: 1079, dependent conditional: 0, dependent unconditional: 1079, unknown: 12052, unknown conditional: 0, unknown unconditional: 12052] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 807, Positive conditional cache size: 0, Positive unconditional cache size: 807, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 468 locations, 59 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 44.6s, OverallIterations: 50, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2451 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2451 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 249 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7950 IncrementalHoareTripleChecker+Invalid, 8199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 249 mSolverCounterUnsat, 21 mSDtfsCounter, 7950 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3544occurred in iteration=46, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1524 NumberOfCodeBlocks, 1524 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1474 ConstructedInterpolants, 0 QuantifiedInterpolants, 4033 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 50 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 35 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:05:46,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...