/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 PROGRAM_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-name-comparator-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:47:41,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:47:41,344 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 [2023-08-26 08:47:41,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:47:41,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:47:41,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:47:41,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:47:41,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:47:41,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:47:41,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:47:41,375 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:47:41,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:47:41,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:47:41,376 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:47:41,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:47:41,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:47:41,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:47:41,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:47:41,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:47:41,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:47:41,378 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:47:41,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:47:41,379 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:47:41,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:47:41,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:47:41,380 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:47:41,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:47:41,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:47:41,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:47:41,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:47:41,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:47:41,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:47:41,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:47:41,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:47:41,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:47:41,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:47:41,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:47:41,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:47:41,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:47:41,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:47:41,728 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:47:41,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c [2023-08-26 08:47:42,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:47:43,131 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:47:43,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c [2023-08-26 08:47:43,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b94af71/fd1b7547206a4bf79816717844d294e0/FLAG0dd2ad623 [2023-08-26 08:47:43,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b94af71/fd1b7547206a4bf79816717844d294e0 [2023-08-26 08:47:43,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:47:43,156 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:47:43,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:47:43,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:47:43,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:47:43,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51216637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43, skipping insertion in model container [2023-08-26 08:47:43,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,197 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:47:43,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:47:43,455 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:47:43,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:47:43,546 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:47:43,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43 WrapperNode [2023-08-26 08:47:43,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:47:43,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:47:43,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:47:43,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:47:43,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,647 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 872 [2023-08-26 08:47:43,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:47:43,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:47:43,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:47:43,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:47:43,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:47:43,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:47:43,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:47:43,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:47:43,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (1/1) ... [2023-08-26 08:47:43,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:47:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:47:43,770 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) [2023-08-26 08:47:43,792 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 [2023-08-26 08:47:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:47:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:47:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:47:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:47:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:47:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:47:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:47:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:47:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:47:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:47:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:47:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:47:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:47:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:47:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:47:43,807 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:47:43,945 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:47:43,946 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:47:44,888 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:47:44,901 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:47:44,901 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-26 08:47:44,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:47:44 BoogieIcfgContainer [2023-08-26 08:47:44,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:47:44,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:47:44,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:47:44,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:47:44,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:47:43" (1/3) ... [2023-08-26 08:47:44,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b423e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:47:44, skipping insertion in model container [2023-08-26 08:47:44,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:47:43" (2/3) ... [2023-08-26 08:47:44,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b423e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:47:44, skipping insertion in model container [2023-08-26 08:47:44,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:47:44" (3/3) ... [2023-08-26 08:47:44,911 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2023-08-26 08:47:44,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:47:44,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 153 error locations. [2023-08-26 08:47:44,926 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:47:45,148 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:47:45,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1045 places, 1093 transitions, 2210 flow [2023-08-26 08:47:45,709 INFO L124 PetriNetUnfolderBase]: 58/1090 cut-off events. [2023-08-26 08:47:45,710 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:47:45,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 1090 events. 58/1090 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3730 event pairs, 0 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 824. Up to 2 conditions per place. [2023-08-26 08:47:45,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 1045 places, 1093 transitions, 2210 flow [2023-08-26 08:47:45,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1031 places, 1079 transitions, 2176 flow [2023-08-26 08:47:45,785 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:47:45,793 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1031 places, 1079 transitions, 2176 flow [2023-08-26 08:47:45,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1031 places, 1079 transitions, 2176 flow [2023-08-26 08:47:45,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1031 places, 1079 transitions, 2176 flow [2023-08-26 08:47:46,161 INFO L124 PetriNetUnfolderBase]: 58/1079 cut-off events. [2023-08-26 08:47:46,162 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:47:46,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 1079 events. 58/1079 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3741 event pairs, 0 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 824. Up to 2 conditions per place. [2023-08-26 08:47:46,316 INFO L119 LiptonReduction]: Number of co-enabled transitions 459510 [2023-08-26 08:48:08,775 INFO L134 LiptonReduction]: Checked pairs total: 1031373 [2023-08-26 08:48:08,775 INFO L136 LiptonReduction]: Total number of compositions: 1300 [2023-08-26 08:48:08,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:48:08,794 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;@6720947a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:48:08,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 285 error locations. [2023-08-26 08:48:08,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:48:08,795 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:48:08,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:48:08,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:08,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:48:08,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:08,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:08,800 INFO L85 PathProgramCache]: Analyzing trace with hash 4532, now seen corresponding path program 1 times [2023-08-26 08:48:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:08,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796762865] [2023-08-26 08:48:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:08,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:48:08,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:08,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796762865] [2023-08-26 08:48:08,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796762865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:08,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:08,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:48:08,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048994204] [2023-08-26 08:48:08,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:08,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:48:08,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:48:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:48:08,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 2393 [2023-08-26 08:48:08,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 279 transitions, 576 flow. Second operand has 2 states, 2 states have (on average 1067.5) internal successors, (2135), 2 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:08,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:08,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 2393 [2023-08-26 08:48:08,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:14,946 INFO L124 PetriNetUnfolderBase]: 46424/75135 cut-off events. [2023-08-26 08:48:14,947 INFO L125 PetriNetUnfolderBase]: For 1559/1703 co-relation queries the response was YES. [2023-08-26 08:48:15,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138804 conditions, 75135 events. 46424/75135 cut-off events. For 1559/1703 co-relation queries the response was YES. Maximal size of possible extension queue 1486. Compared 598887 event pairs, 36815 based on Foata normal form. 8402/72388 useless extension candidates. Maximal degree in co-relation 132031. Up to 62465 conditions per place. [2023-08-26 08:48:15,487 INFO L140 encePairwiseOnDemand]: 2279/2393 looper letters, 82 selfloop transitions, 0 changer transitions 0/165 dead transitions. [2023-08-26 08:48:15,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 165 transitions, 512 flow [2023-08-26 08:48:15,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:48:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:48:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2330 transitions. [2023-08-26 08:48:15,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868366067697451 [2023-08-26 08:48:15,512 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2330 transitions. [2023-08-26 08:48:15,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2330 transitions. [2023-08-26 08:48:15,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:15,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2330 transitions. [2023-08-26 08:48:15,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1165.0) internal successors, (2330), 2 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:15,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2393.0) internal successors, (7179), 3 states have internal predecessors, (7179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:15,544 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2393.0) internal successors, (7179), 3 states have internal predecessors, (7179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:15,546 INFO L175 Difference]: Start difference. First operand has 274 places, 279 transitions, 576 flow. Second operand 2 states and 2330 transitions. [2023-08-26 08:48:15,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 165 transitions, 512 flow [2023-08-26 08:48:15,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 165 transitions, 500 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:48:15,567 INFO L231 Difference]: Finished difference. Result has 157 places, 165 transitions, 336 flow [2023-08-26 08:48:15,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=336, PETRI_PLACES=157, PETRI_TRANSITIONS=165} [2023-08-26 08:48:15,572 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -117 predicate places. [2023-08-26 08:48:15,572 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 165 transitions, 336 flow [2023-08-26 08:48:15,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1067.5) internal successors, (2135), 2 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:15,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:15,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 08:48:15,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:48:15,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:15,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:15,576 INFO L85 PathProgramCache]: Analyzing trace with hash 37966768, now seen corresponding path program 1 times [2023-08-26 08:48:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:15,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971891348] [2023-08-26 08:48:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:15,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:48:15,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:15,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971891348] [2023-08-26 08:48:15,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971891348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:15,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:15,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:48:15,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163120706] [2023-08-26 08:48:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:15,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:48:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:15,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:48:15,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:48:15,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 2393 [2023-08-26 08:48:15,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 165 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:15,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:15,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 2393 [2023-08-26 08:48:15,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:20,671 INFO L124 PetriNetUnfolderBase]: 46424/75136 cut-off events. [2023-08-26 08:48:20,672 INFO L125 PetriNetUnfolderBase]: For 383/527 co-relation queries the response was YES. [2023-08-26 08:48:20,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138004 conditions, 75136 events. 46424/75136 cut-off events. For 383/527 co-relation queries the response was YES. Maximal size of possible extension queue 1486. Compared 598829 event pairs, 36815 based on Foata normal form. 0/63987 useless extension candidates. Maximal degree in co-relation 138001. Up to 62465 conditions per place. [2023-08-26 08:48:21,273 INFO L140 encePairwiseOnDemand]: 2390/2393 looper letters, 81 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-08-26 08:48:21,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 166 transitions, 504 flow [2023-08-26 08:48:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:48:21,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:48:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2023-08-26 08:48:21,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45006268282490597 [2023-08-26 08:48:21,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2023-08-26 08:48:21,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2023-08-26 08:48:21,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:21,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2023-08-26 08:48:21,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:21,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:21,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:21,310 INFO L175 Difference]: Start difference. First operand has 157 places, 165 transitions, 336 flow. Second operand 3 states and 3231 transitions. [2023-08-26 08:48:21,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 166 transitions, 504 flow [2023-08-26 08:48:21,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 166 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:48:21,314 INFO L231 Difference]: Finished difference. Result has 160 places, 166 transitions, 348 flow [2023-08-26 08:48:21,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=160, PETRI_TRANSITIONS=166} [2023-08-26 08:48:21,315 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -114 predicate places. [2023-08-26 08:48:21,315 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 166 transitions, 348 flow [2023-08-26 08:48:21,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:21,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:21,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:48:21,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:48:21,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:21,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1235481024, now seen corresponding path program 1 times [2023-08-26 08:48:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:21,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442137733] [2023-08-26 08:48:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:48:21,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:21,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442137733] [2023-08-26 08:48:21,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442137733] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:21,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:21,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:48:21,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291311754] [2023-08-26 08:48:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:21,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:48:21,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:21,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:48:21,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:48:21,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 2393 [2023-08-26 08:48:21,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 166 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 1036.0) internal successors, (3108), 3 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:21,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:21,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 2393 [2023-08-26 08:48:21,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:27,874 INFO L124 PetriNetUnfolderBase]: 60710/95649 cut-off events. [2023-08-26 08:48:27,874 INFO L125 PetriNetUnfolderBase]: For 438/438 co-relation queries the response was YES. [2023-08-26 08:48:28,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178045 conditions, 95649 events. 60710/95649 cut-off events. For 438/438 co-relation queries the response was YES. Maximal size of possible extension queue 1727. Compared 747886 event pairs, 36567 based on Foata normal form. 0/82839 useless extension candidates. Maximal degree in co-relation 178040. Up to 81764 conditions per place. [2023-08-26 08:48:28,535 INFO L140 encePairwiseOnDemand]: 2381/2393 looper letters, 117 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2023-08-26 08:48:28,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 186 transitions, 628 flow [2023-08-26 08:48:28,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:48:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:48:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3230 transitions. [2023-08-26 08:48:28,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44992338765844825 [2023-08-26 08:48:28,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3230 transitions. [2023-08-26 08:48:28,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3230 transitions. [2023-08-26 08:48:28,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:28,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3230 transitions. [2023-08-26 08:48:29,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1076.6666666666667) internal successors, (3230), 3 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:29,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:29,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:29,218 INFO L175 Difference]: Start difference. First operand has 160 places, 166 transitions, 348 flow. Second operand 3 states and 3230 transitions. [2023-08-26 08:48:29,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 186 transitions, 628 flow [2023-08-26 08:48:29,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 186 transitions, 624 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 08:48:29,233 INFO L231 Difference]: Finished difference. Result has 152 places, 158 transitions, 338 flow [2023-08-26 08:48:29,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=152, PETRI_TRANSITIONS=158} [2023-08-26 08:48:29,234 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -122 predicate places. [2023-08-26 08:48:29,235 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 158 transitions, 338 flow [2023-08-26 08:48:29,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.0) internal successors, (3108), 3 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:29,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:29,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:48:29,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:48:29,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:29,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:29,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1886369346, now seen corresponding path program 1 times [2023-08-26 08:48:29,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:29,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436986229] [2023-08-26 08:48:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:29,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:48:29,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:29,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436986229] [2023-08-26 08:48:29,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436986229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:29,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:29,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:48:29,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082724071] [2023-08-26 08:48:29,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:29,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:48:29,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:29,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:48:29,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:48:29,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 2393 [2023-08-26 08:48:29,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 158 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:29,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:29,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 2393 [2023-08-26 08:48:29,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:35,431 INFO L124 PetriNetUnfolderBase]: 60626/92936 cut-off events. [2023-08-26 08:48:35,432 INFO L125 PetriNetUnfolderBase]: For 2413/2413 co-relation queries the response was YES. [2023-08-26 08:48:35,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177422 conditions, 92936 events. 60626/92936 cut-off events. For 2413/2413 co-relation queries the response was YES. Maximal size of possible extension queue 1686. Compared 696776 event pairs, 35447 based on Foata normal form. 0/80399 useless extension candidates. Maximal degree in co-relation 177417. Up to 81646 conditions per place. [2023-08-26 08:48:35,970 INFO L140 encePairwiseOnDemand]: 2381/2393 looper letters, 121 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2023-08-26 08:48:35,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 180 transitions, 640 flow [2023-08-26 08:48:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:48:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:48:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3230 transitions. [2023-08-26 08:48:35,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44992338765844825 [2023-08-26 08:48:35,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3230 transitions. [2023-08-26 08:48:35,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3230 transitions. [2023-08-26 08:48:35,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:35,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3230 transitions. [2023-08-26 08:48:35,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1076.6666666666667) internal successors, (3230), 3 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:35,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:35,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:35,996 INFO L175 Difference]: Start difference. First operand has 152 places, 158 transitions, 338 flow. Second operand 3 states and 3230 transitions. [2023-08-26 08:48:35,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 180 transitions, 640 flow [2023-08-26 08:48:35,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 180 transitions, 640 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:48:36,000 INFO L231 Difference]: Finished difference. Result has 145 places, 150 transitions, 332 flow [2023-08-26 08:48:36,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=145, PETRI_TRANSITIONS=150} [2023-08-26 08:48:36,001 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -129 predicate places. [2023-08-26 08:48:36,001 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 150 transitions, 332 flow [2023-08-26 08:48:36,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:36,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:36,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:48:36,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:48:36,003 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:36,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash -983220896, now seen corresponding path program 1 times [2023-08-26 08:48:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782994678] [2023-08-26 08:48:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:36,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:48:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:36,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782994678] [2023-08-26 08:48:36,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782994678] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:36,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:36,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:48:36,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748752673] [2023-08-26 08:48:36,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:36,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:48:36,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:36,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:48:36,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:48:36,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 2393 [2023-08-26 08:48:36,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 150 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 1037.0) internal successors, (3111), 3 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:36,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:36,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 2393 [2023-08-26 08:48:36,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:42,099 INFO L124 PetriNetUnfolderBase]: 62439/92325 cut-off events. [2023-08-26 08:48:42,099 INFO L125 PetriNetUnfolderBase]: For 3498/3595 co-relation queries the response was YES. [2023-08-26 08:48:42,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180689 conditions, 92325 events. 62439/92325 cut-off events. For 3498/3595 co-relation queries the response was YES. Maximal size of possible extension queue 1604. Compared 656259 event pairs, 17217 based on Foata normal form. 1/79866 useless extension candidates. Maximal degree in co-relation 180683. Up to 83930 conditions per place. [2023-08-26 08:48:42,667 INFO L140 encePairwiseOnDemand]: 2381/2393 looper letters, 124 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2023-08-26 08:48:42,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 174 transitions, 649 flow [2023-08-26 08:48:42,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:48:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:48:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2023-08-26 08:48:42,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45006268282490597 [2023-08-26 08:48:42,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2023-08-26 08:48:42,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2023-08-26 08:48:42,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:42,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2023-08-26 08:48:42,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:42,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:42,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:42,692 INFO L175 Difference]: Start difference. First operand has 145 places, 150 transitions, 332 flow. Second operand 3 states and 3231 transitions. [2023-08-26 08:48:42,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 174 transitions, 649 flow [2023-08-26 08:48:42,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 174 transitions, 649 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:48:42,695 INFO L231 Difference]: Finished difference. Result has 138 places, 142 transitions, 326 flow [2023-08-26 08:48:42,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=138, PETRI_TRANSITIONS=142} [2023-08-26 08:48:42,696 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -136 predicate places. [2023-08-26 08:48:42,696 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 142 transitions, 326 flow [2023-08-26 08:48:42,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1037.0) internal successors, (3111), 3 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:42,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:42,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:48:42,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:48:42,698 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:42,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1376674699, now seen corresponding path program 1 times [2023-08-26 08:48:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:42,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934876340] [2023-08-26 08:48:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:48:42,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:42,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934876340] [2023-08-26 08:48:42,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934876340] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:48:42,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169252961] [2023-08-26 08:48:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:42,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:48:42,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:48:42,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:48:43,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 08:48:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:43,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 08:48:43,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:48:43,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:48:43,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:48:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:48:43,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169252961] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:48:43,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:48:43,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-26 08:48:43,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589504751] [2023-08-26 08:48:43,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:48:43,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 08:48:43,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:43,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 08:48:43,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-26 08:48:43,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 2393 [2023-08-26 08:48:43,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 142 transitions, 326 flow. Second operand has 8 states, 8 states have (on average 1050.875) internal successors, (8407), 8 states have internal predecessors, (8407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:43,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:43,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 2393 [2023-08-26 08:48:43,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:48,824 INFO L124 PetriNetUnfolderBase]: 49122/72449 cut-off events. [2023-08-26 08:48:48,824 INFO L125 PetriNetUnfolderBase]: For 2890/3036 co-relation queries the response was YES. [2023-08-26 08:48:49,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142317 conditions, 72449 events. 49122/72449 cut-off events. For 2890/3036 co-relation queries the response was YES. Maximal size of possible extension queue 1281. Compared 488454 event pairs, 38130 based on Foata normal form. 0/61086 useless extension candidates. Maximal degree in co-relation 142310. Up to 66624 conditions per place. [2023-08-26 08:48:49,330 INFO L140 encePairwiseOnDemand]: 2390/2393 looper letters, 84 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-08-26 08:48:49,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 144 transitions, 510 flow [2023-08-26 08:48:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:48:49,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:48:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5332 transitions. [2023-08-26 08:48:49,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44563309653155037 [2023-08-26 08:48:49,341 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 5332 transitions. [2023-08-26 08:48:49,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5332 transitions. [2023-08-26 08:48:49,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:49,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 5332 transitions. [2023-08-26 08:48:49,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1066.4) internal successors, (5332), 5 states have internal predecessors, (5332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:49,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2393.0) internal successors, (14358), 6 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:49,366 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2393.0) internal successors, (14358), 6 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:49,367 INFO L175 Difference]: Start difference. First operand has 138 places, 142 transitions, 326 flow. Second operand 5 states and 5332 transitions. [2023-08-26 08:48:49,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 144 transitions, 510 flow [2023-08-26 08:48:49,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 144 transitions, 510 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:48:49,370 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 352 flow [2023-08-26 08:48:49,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2023-08-26 08:48:49,371 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -130 predicate places. [2023-08-26 08:48:49,371 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 352 flow [2023-08-26 08:48:49,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1050.875) internal successors, (8407), 8 states have internal predecessors, (8407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:49,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:49,373 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:48:49,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 08:48:49,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-26 08:48:49,580 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:48:49,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1463821707, now seen corresponding path program 2 times [2023-08-26 08:48:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:49,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607662837] [2023-08-26 08:48:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:49,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:48:49,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:49,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607662837] [2023-08-26 08:48:49,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607662837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:49,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:49,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:48:49,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573707186] [2023-08-26 08:48:49,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:49,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:48:49,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:49,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:48:49,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:48:49,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2393 [2023-08-26 08:48:49,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 1021.1666666666666) internal successors, (6127), 6 states have internal predecessors, (6127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:49,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:49,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2393 [2023-08-26 08:48:49,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:49:17,221 INFO L124 PetriNetUnfolderBase]: 303639/403787 cut-off events. [2023-08-26 08:49:17,222 INFO L125 PetriNetUnfolderBase]: For 11511/11513 co-relation queries the response was YES. [2023-08-26 08:49:18,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819300 conditions, 403787 events. 303639/403787 cut-off events. For 11511/11513 co-relation queries the response was YES. Maximal size of possible extension queue 4816. Compared 2745541 event pairs, 29882 based on Foata normal form. 0/344213 useless extension candidates. Maximal degree in co-relation 819290. Up to 147560 conditions per place. [2023-08-26 08:49:19,596 INFO L140 encePairwiseOnDemand]: 2388/2393 looper letters, 453 selfloop transitions, 4 changer transitions 0/483 dead transitions. [2023-08-26 08:49:19,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 483 transitions, 2004 flow [2023-08-26 08:49:19,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:49:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:49:19,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6554 transitions. [2023-08-26 08:49:19,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45647026048196127 [2023-08-26 08:49:19,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6554 transitions. [2023-08-26 08:49:19,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6554 transitions. [2023-08-26 08:49:19,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:49:19,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6554 transitions. [2023-08-26 08:49:19,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1092.3333333333333) internal successors, (6554), 6 states have internal predecessors, (6554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:19,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:19,633 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:19,633 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 352 flow. Second operand 6 states and 6554 transitions. [2023-08-26 08:49:19,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 483 transitions, 2004 flow [2023-08-26 08:49:19,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 483 transitions, 1994 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 08:49:19,640 INFO L231 Difference]: Finished difference. Result has 147 places, 143 transitions, 348 flow [2023-08-26 08:49:19,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=147, PETRI_TRANSITIONS=143} [2023-08-26 08:49:19,641 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -127 predicate places. [2023-08-26 08:49:19,641 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 143 transitions, 348 flow [2023-08-26 08:49:19,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1021.1666666666666) internal successors, (6127), 6 states have internal predecessors, (6127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:19,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:49:19,643 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:49:19,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:49:19,643 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:49:19,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:49:19,643 INFO L85 PathProgramCache]: Analyzing trace with hash 11674846, now seen corresponding path program 1 times [2023-08-26 08:49:19,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:49:19,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042048841] [2023-08-26 08:49:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:49:19,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:49:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:49:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:49:19,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:49:19,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042048841] [2023-08-26 08:49:19,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042048841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:49:19,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:49:19,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:49:19,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193656794] [2023-08-26 08:49:19,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:49:19,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:49:19,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:49:19,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:49:19,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:49:19,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 2393 [2023-08-26 08:49:19,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 143 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 1058.3333333333333) internal successors, (3175), 3 states have internal predecessors, (3175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:19,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:49:19,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 2393 [2023-08-26 08:49:19,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:49:25,299 INFO L124 PetriNetUnfolderBase]: 52644/79657 cut-off events. [2023-08-26 08:49:25,299 INFO L125 PetriNetUnfolderBase]: For 11758/11904 co-relation queries the response was YES. [2023-08-26 08:49:25,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163363 conditions, 79657 events. 52644/79657 cut-off events. For 11758/11904 co-relation queries the response was YES. Maximal size of possible extension queue 1519. Compared 572172 event pairs, 14951 based on Foata normal form. 3/67506 useless extension candidates. Maximal degree in co-relation 163352. Up to 66437 conditions per place. [2023-08-26 08:49:25,856 INFO L140 encePairwiseOnDemand]: 2387/2393 looper letters, 126 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2023-08-26 08:49:25,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 704 flow [2023-08-26 08:49:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:49:25,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:49:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-08-26 08:49:25,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45800250731299624 [2023-08-26 08:49:25,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-08-26 08:49:25,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-08-26 08:49:25,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:49:25,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-08-26 08:49:25,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:25,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:25,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:25,875 INFO L175 Difference]: Start difference. First operand has 147 places, 143 transitions, 348 flow. Second operand 3 states and 3288 transitions. [2023-08-26 08:49:25,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 704 flow [2023-08-26 08:49:25,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 695 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:49:25,923 INFO L231 Difference]: Finished difference. Result has 143 places, 143 transitions, 356 flow [2023-08-26 08:49:25,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=143, PETRI_TRANSITIONS=143} [2023-08-26 08:49:25,924 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -131 predicate places. [2023-08-26 08:49:25,924 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 143 transitions, 356 flow [2023-08-26 08:49:25,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1058.3333333333333) internal successors, (3175), 3 states have internal predecessors, (3175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:25,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:49:25,925 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:49:25,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:49:25,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err42ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:49:25,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:49:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1457773068, now seen corresponding path program 1 times [2023-08-26 08:49:25,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:49:25,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963416906] [2023-08-26 08:49:25,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:49:25,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:49:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:49:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:49:25,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:49:25,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963416906] [2023-08-26 08:49:25,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963416906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:49:25,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:49:25,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:49:25,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188838949] [2023-08-26 08:49:25,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:49:25,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:49:25,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:49:25,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:49:25,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:49:25,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 2393 [2023-08-26 08:49:25,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 143 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 1039.0) internal successors, (3117), 3 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:25,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:49:25,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 2393 [2023-08-26 08:49:25,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:49:31,978 INFO L124 PetriNetUnfolderBase]: 52644/79008 cut-off events. [2023-08-26 08:49:31,979 INFO L125 PetriNetUnfolderBase]: For 5807/5953 co-relation queries the response was YES. [2023-08-26 08:49:32,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157811 conditions, 79008 events. 52644/79008 cut-off events. For 5807/5953 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 560321 event pairs, 37536 based on Foata normal form. 0/69640 useless extension candidates. Maximal degree in co-relation 157800. Up to 66749 conditions per place. [2023-08-26 08:49:32,513 INFO L140 encePairwiseOnDemand]: 2389/2393 looper letters, 141 selfloop transitions, 3 changer transitions 0/195 dead transitions. [2023-08-26 08:49:32,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 195 transitions, 770 flow [2023-08-26 08:49:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:49:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:49:32,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2023-08-26 08:49:32,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45089845382365235 [2023-08-26 08:49:32,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2023-08-26 08:49:32,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2023-08-26 08:49:32,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:49:32,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2023-08-26 08:49:32,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:32,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:32,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:32,531 INFO L175 Difference]: Start difference. First operand has 143 places, 143 transitions, 356 flow. Second operand 3 states and 3237 transitions. [2023-08-26 08:49:32,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 195 transitions, 770 flow [2023-08-26 08:49:32,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 195 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:49:32,535 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 360 flow [2023-08-26 08:49:32,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2023-08-26 08:49:32,536 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -130 predicate places. [2023-08-26 08:49:32,536 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 360 flow [2023-08-26 08:49:32,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1039.0) internal successors, (3117), 3 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:32,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:49:32,537 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:49:32,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:49:32,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:49:32,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:49:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash -808969647, now seen corresponding path program 1 times [2023-08-26 08:49:32,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:49:32,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065166568] [2023-08-26 08:49:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:49:32,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:49:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:49:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:49:32,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:49:32,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065166568] [2023-08-26 08:49:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065166568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:49:32,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:49:32,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:49:32,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410713991] [2023-08-26 08:49:32,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:49:32,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:49:32,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:49:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:49:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:49:32,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 2393 [2023-08-26 08:49:32,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 1015.6666666666666) internal successors, (6094), 6 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:32,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:49:32,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 2393 [2023-08-26 08:49:32,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:50:04,425 INFO L124 PetriNetUnfolderBase]: 314956/422995 cut-off events. [2023-08-26 08:50:04,425 INFO L125 PetriNetUnfolderBase]: For 37078/37080 co-relation queries the response was YES. [2023-08-26 08:50:05,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898670 conditions, 422995 events. 314956/422995 cut-off events. For 37078/37080 co-relation queries the response was YES. Maximal size of possible extension queue 5125. Compared 2838292 event pairs, 124190 based on Foata normal form. 0/380893 useless extension candidates. Maximal degree in co-relation 898658. Up to 212113 conditions per place. [2023-08-26 08:50:07,402 INFO L140 encePairwiseOnDemand]: 2387/2393 looper letters, 371 selfloop transitions, 5 changer transitions 0/397 dead transitions. [2023-08-26 08:50:07,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 397 transitions, 1690 flow [2023-08-26 08:50:07,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:50:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:50:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6446 transitions. [2023-08-26 08:50:07,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4489483214932442 [2023-08-26 08:50:07,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6446 transitions. [2023-08-26 08:50:07,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6446 transitions. [2023-08-26 08:50:07,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:50:07,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6446 transitions. [2023-08-26 08:50:07,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1074.3333333333333) internal successors, (6446), 6 states have internal predecessors, (6446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:07,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:07,426 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:07,426 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 360 flow. Second operand 6 states and 6446 transitions. [2023-08-26 08:50:07,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 397 transitions, 1690 flow [2023-08-26 08:50:09,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 397 transitions, 1660 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:50:09,009 INFO L231 Difference]: Finished difference. Result has 146 places, 141 transitions, 362 flow [2023-08-26 08:50:09,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=146, PETRI_TRANSITIONS=141} [2023-08-26 08:50:09,010 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -128 predicate places. [2023-08-26 08:50:09,010 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 141 transitions, 362 flow [2023-08-26 08:50:09,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1015.6666666666666) internal successors, (6094), 6 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:09,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:50:09,011 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:50:09,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:50:09,011 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:50:09,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:50:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1840010995, now seen corresponding path program 1 times [2023-08-26 08:50:09,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:50:09,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85288303] [2023-08-26 08:50:09,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:50:09,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:50:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:50:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:50:09,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:50:09,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85288303] [2023-08-26 08:50:09,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85288303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:50:09,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:50:09,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:50:09,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448654745] [2023-08-26 08:50:09,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:50:09,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:50:09,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:50:09,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:50:09,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:50:09,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 2393 [2023-08-26 08:50:09,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 141 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 1016.0) internal successors, (6096), 6 states have internal predecessors, (6096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:09,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:50:09,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 2393 [2023-08-26 08:50:09,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:50:38,373 INFO L124 PetriNetUnfolderBase]: 303557/408046 cut-off events. [2023-08-26 08:50:38,374 INFO L125 PetriNetUnfolderBase]: For 40602/40604 co-relation queries the response was YES. [2023-08-26 08:50:39,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872477 conditions, 408046 events. 303557/408046 cut-off events. For 40602/40604 co-relation queries the response was YES. Maximal size of possible extension queue 4950. Compared 2718793 event pairs, 118772 based on Foata normal form. 0/366466 useless extension candidates. Maximal degree in co-relation 872465. Up to 197127 conditions per place. [2023-08-26 08:50:41,132 INFO L140 encePairwiseOnDemand]: 2387/2393 looper letters, 394 selfloop transitions, 5 changer transitions 0/420 dead transitions. [2023-08-26 08:50:41,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 420 transitions, 1826 flow [2023-08-26 08:50:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:50:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:50:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6461 transitions. [2023-08-26 08:50:41,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4499930352416771 [2023-08-26 08:50:41,141 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6461 transitions. [2023-08-26 08:50:41,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6461 transitions. [2023-08-26 08:50:41,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:50:41,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6461 transitions. [2023-08-26 08:50:41,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1076.8333333333333) internal successors, (6461), 6 states have internal predecessors, (6461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:41,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:41,161 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:41,161 INFO L175 Difference]: Start difference. First operand has 146 places, 141 transitions, 362 flow. Second operand 6 states and 6461 transitions. [2023-08-26 08:50:41,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 420 transitions, 1826 flow [2023-08-26 08:50:41,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 420 transitions, 1776 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:50:41,311 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 360 flow [2023-08-26 08:50:41,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2023-08-26 08:50:41,312 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -129 predicate places. [2023-08-26 08:50:41,312 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 360 flow [2023-08-26 08:50:41,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1016.0) internal successors, (6096), 6 states have internal predecessors, (6096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:41,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:50:41,313 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:50:41,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:50:41,313 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:50:41,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:50:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1058675164, now seen corresponding path program 1 times [2023-08-26 08:50:41,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:50:41,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901280955] [2023-08-26 08:50:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:50:41,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:50:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:50:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:50:41,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:50:41,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901280955] [2023-08-26 08:50:41,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901280955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:50:41,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:50:41,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:50:41,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652457872] [2023-08-26 08:50:41,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:50:41,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:50:41,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:50:41,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:50:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:50:41,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 2393 [2023-08-26 08:50:41,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 1016.1666666666666) internal successors, (6097), 6 states have internal predecessors, (6097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:41,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:50:41,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 2393 [2023-08-26 08:50:41,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:11,838 INFO L124 PetriNetUnfolderBase]: 291966/392403 cut-off events. [2023-08-26 08:51:11,838 INFO L125 PetriNetUnfolderBase]: For 36400/36402 co-relation queries the response was YES. [2023-08-26 08:51:13,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840182 conditions, 392403 events. 291966/392403 cut-off events. For 36400/36402 co-relation queries the response was YES. Maximal size of possible extension queue 4786. Compared 2581774 event pairs, 107483 based on Foata normal form. 0/355580 useless extension candidates. Maximal degree in co-relation 840170. Up to 177494 conditions per place. [2023-08-26 08:51:14,550 INFO L140 encePairwiseOnDemand]: 2387/2393 looper letters, 409 selfloop transitions, 5 changer transitions 0/435 dead transitions. [2023-08-26 08:51:14,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 435 transitions, 1874 flow [2023-08-26 08:51:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:51:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:51:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6480 transitions. [2023-08-26 08:51:14,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4513163393230255 [2023-08-26 08:51:14,560 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6480 transitions. [2023-08-26 08:51:14,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6480 transitions. [2023-08-26 08:51:14,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:14,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6480 transitions. [2023-08-26 08:51:14,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1080.0) internal successors, (6480), 6 states have internal predecessors, (6480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:14,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:14,578 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:14,578 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 360 flow. Second operand 6 states and 6480 transitions. [2023-08-26 08:51:14,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 435 transitions, 1874 flow [2023-08-26 08:51:15,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 435 transitions, 1824 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:51:15,175 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 358 flow [2023-08-26 08:51:15,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=358, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2023-08-26 08:51:15,177 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -130 predicate places. [2023-08-26 08:51:15,177 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 358 flow [2023-08-26 08:51:15,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1016.1666666666666) internal successors, (6097), 6 states have internal predecessors, (6097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:15,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:15,179 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:15,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:51:15,179 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:51:15,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash 519854405, now seen corresponding path program 1 times [2023-08-26 08:51:15,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:15,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118563452] [2023-08-26 08:51:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:51:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:15,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118563452] [2023-08-26 08:51:15,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118563452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:15,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:15,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:51:15,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561203693] [2023-08-26 08:51:15,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:15,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:51:15,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:15,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:51:15,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:51:15,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2393 [2023-08-26 08:51:15,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 1023.1666666666666) internal successors, (6139), 6 states have internal predecessors, (6139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:15,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:15,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2393 [2023-08-26 08:51:15,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:43,626 INFO L124 PetriNetUnfolderBase]: 279955/376351 cut-off events. [2023-08-26 08:51:43,626 INFO L125 PetriNetUnfolderBase]: For 26353/26355 co-relation queries the response was YES. [2023-08-26 08:51:45,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807121 conditions, 376351 events. 279955/376351 cut-off events. For 26353/26355 co-relation queries the response was YES. Maximal size of possible extension queue 4699. Compared 2467517 event pairs, 220791 based on Foata normal form. 0/341317 useless extension candidates. Maximal degree in co-relation 807109. Up to 360134 conditions per place. [2023-08-26 08:51:46,402 INFO L140 encePairwiseOnDemand]: 2388/2393 looper letters, 332 selfloop transitions, 4 changer transitions 0/358 dead transitions. [2023-08-26 08:51:46,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 358 transitions, 1564 flow [2023-08-26 08:51:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:51:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:51:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6434 transitions. [2023-08-26 08:51:46,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44811255049449783 [2023-08-26 08:51:46,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6434 transitions. [2023-08-26 08:51:46,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6434 transitions. [2023-08-26 08:51:46,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:46,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6434 transitions. [2023-08-26 08:51:46,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1072.3333333333333) internal successors, (6434), 6 states have internal predecessors, (6434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:46,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:46,429 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:46,429 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 358 flow. Second operand 6 states and 6434 transitions. [2023-08-26 08:51:46,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 358 transitions, 1564 flow [2023-08-26 08:51:48,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 358 transitions, 1514 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:51:48,347 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 354 flow [2023-08-26 08:51:48,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2023-08-26 08:51:48,348 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -131 predicate places. [2023-08-26 08:51:48,348 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 354 flow [2023-08-26 08:51:48,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1023.1666666666666) internal successors, (6139), 6 states have internal predecessors, (6139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:48,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:48,349 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:48,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:51:48,349 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:51:48,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1062062082, now seen corresponding path program 1 times [2023-08-26 08:51:48,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:48,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644589592] [2023-08-26 08:51:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:48,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:51:48,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:48,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644589592] [2023-08-26 08:51:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644589592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:48,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:48,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:51:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145180893] [2023-08-26 08:51:48,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:48,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:51:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:51:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:51:48,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2393 [2023-08-26 08:51:48,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 1025.1666666666667) internal successors, (6151), 6 states have internal predecessors, (6151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:48,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:48,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2393 [2023-08-26 08:51:48,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:19,122 INFO L124 PetriNetUnfolderBase]: 279920/376375 cut-off events. [2023-08-26 08:52:19,122 INFO L125 PetriNetUnfolderBase]: For 24088/24090 co-relation queries the response was YES. [2023-08-26 08:52:20,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790891 conditions, 376375 events. 279920/376375 cut-off events. For 24088/24090 co-relation queries the response was YES. Maximal size of possible extension queue 4699. Compared 2467811 event pairs, 226725 based on Foata normal form. 0/341375 useless extension candidates. Maximal degree in co-relation 790879. Up to 370525 conditions per place. [2023-08-26 08:52:21,672 INFO L140 encePairwiseOnDemand]: 2388/2393 looper letters, 219 selfloop transitions, 4 changer transitions 0/245 dead transitions. [2023-08-26 08:52:21,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 245 transitions, 1042 flow [2023-08-26 08:52:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:52:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:52:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6325 transitions. [2023-08-26 08:52:21,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4405209639225519 [2023-08-26 08:52:21,679 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6325 transitions. [2023-08-26 08:52:21,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6325 transitions. [2023-08-26 08:52:21,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:21,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6325 transitions. [2023-08-26 08:52:21,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1054.1666666666667) internal successors, (6325), 6 states have internal predecessors, (6325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:21,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:21,697 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:21,697 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 354 flow. Second operand 6 states and 6325 transitions. [2023-08-26 08:52:21,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 245 transitions, 1042 flow [2023-08-26 08:52:21,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 245 transitions, 1035 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:52:21,737 INFO L231 Difference]: Finished difference. Result has 143 places, 137 transitions, 353 flow [2023-08-26 08:52:21,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=143, PETRI_TRANSITIONS=137} [2023-08-26 08:52:21,738 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -131 predicate places. [2023-08-26 08:52:21,738 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 137 transitions, 353 flow [2023-08-26 08:52:21,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1025.1666666666667) internal successors, (6151), 6 states have internal predecessors, (6151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:21,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:21,739 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:21,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:52:21,740 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:52:21,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2051410933, now seen corresponding path program 1 times [2023-08-26 08:52:21,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:21,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146156476] [2023-08-26 08:52:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:52:21,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:21,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146156476] [2023-08-26 08:52:21,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146156476] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:21,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:21,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:52:21,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530604390] [2023-08-26 08:52:21,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:21,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:52:21,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:21,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:52:21,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:52:21,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 2393 [2023-08-26 08:52:21,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 137 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 1013.5) internal successors, (6081), 6 states have internal predecessors, (6081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:21,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:21,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 2393 [2023-08-26 08:52:21,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:32,074 INFO L124 PetriNetUnfolderBase]: 84235/134482 cut-off events. [2023-08-26 08:52:32,074 INFO L125 PetriNetUnfolderBase]: For 7700/7700 co-relation queries the response was YES. [2023-08-26 08:52:32,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262216 conditions, 134482 events. 84235/134482 cut-off events. For 7700/7700 co-relation queries the response was YES. Maximal size of possible extension queue 2313. Compared 1128108 event pairs, 19158 based on Foata normal form. 2/120562 useless extension candidates. Maximal degree in co-relation 262204. Up to 41996 conditions per place. [2023-08-26 08:52:32,993 INFO L140 encePairwiseOnDemand]: 2378/2393 looper letters, 280 selfloop transitions, 17 changer transitions 26/369 dead transitions. [2023-08-26 08:52:32,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 369 transitions, 1542 flow [2023-08-26 08:52:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:52:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:52:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6355 transitions. [2023-08-26 08:52:32,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44261039141941777 [2023-08-26 08:52:32,998 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6355 transitions. [2023-08-26 08:52:32,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6355 transitions. [2023-08-26 08:52:32,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:32,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6355 transitions. [2023-08-26 08:52:33,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1059.1666666666667) internal successors, (6355), 6 states have internal predecessors, (6355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:33,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:33,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:33,012 INFO L175 Difference]: Start difference. First operand has 143 places, 137 transitions, 353 flow. Second operand 6 states and 6355 transitions. [2023-08-26 08:52:33,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 369 transitions, 1542 flow [2023-08-26 08:52:33,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 369 transitions, 1531 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:52:33,019 INFO L231 Difference]: Finished difference. Result has 149 places, 144 transitions, 444 flow [2023-08-26 08:52:33,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=149, PETRI_TRANSITIONS=144} [2023-08-26 08:52:33,020 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -125 predicate places. [2023-08-26 08:52:33,020 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 144 transitions, 444 flow [2023-08-26 08:52:33,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1013.5) internal successors, (6081), 6 states have internal predecessors, (6081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:33,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:33,021 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:33,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:52:33,021 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:52:33,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:33,022 INFO L85 PathProgramCache]: Analyzing trace with hash -801085199, now seen corresponding path program 1 times [2023-08-26 08:52:33,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:33,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113300990] [2023-08-26 08:52:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:33,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:52:33,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:33,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113300990] [2023-08-26 08:52:33,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113300990] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:33,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:33,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:52:33,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604070331] [2023-08-26 08:52:33,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:33,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:33,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:33,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:33,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:33,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1053 out of 2393 [2023-08-26 08:52:33,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 144 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 1064.3333333333333) internal successors, (3193), 3 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:33,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:33,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1053 of 2393 [2023-08-26 08:52:33,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:48,089 INFO L124 PetriNetUnfolderBase]: 124637/181162 cut-off events. [2023-08-26 08:52:48,090 INFO L125 PetriNetUnfolderBase]: For 55052/55128 co-relation queries the response was YES. [2023-08-26 08:52:49,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405377 conditions, 181162 events. 124637/181162 cut-off events. For 55052/55128 co-relation queries the response was YES. Maximal size of possible extension queue 2324. Compared 1292184 event pairs, 85322 based on Foata normal form. 948/165213 useless extension candidates. Maximal degree in co-relation 405361. Up to 86093 conditions per place. [2023-08-26 08:52:49,754 INFO L140 encePairwiseOnDemand]: 2390/2393 looper letters, 172 selfloop transitions, 4 changer transitions 3/220 dead transitions. [2023-08-26 08:52:49,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 220 transitions, 996 flow [2023-08-26 08:52:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3323 transitions. [2023-08-26 08:52:49,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46287783813901656 [2023-08-26 08:52:49,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3323 transitions. [2023-08-26 08:52:49,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3323 transitions. [2023-08-26 08:52:49,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:49,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3323 transitions. [2023-08-26 08:52:49,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1107.6666666666667) internal successors, (3323), 3 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:49,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:49,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:49,767 INFO L175 Difference]: Start difference. First operand has 149 places, 144 transitions, 444 flow. Second operand 3 states and 3323 transitions. [2023-08-26 08:52:49,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 220 transitions, 996 flow [2023-08-26 08:52:49,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 220 transitions, 996 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:52:49,897 INFO L231 Difference]: Finished difference. Result has 152 places, 144 transitions, 460 flow [2023-08-26 08:52:49,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=152, PETRI_TRANSITIONS=144} [2023-08-26 08:52:49,898 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -122 predicate places. [2023-08-26 08:52:49,898 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 144 transitions, 460 flow [2023-08-26 08:52:49,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1064.3333333333333) internal successors, (3193), 3 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:49,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:49,899 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:49,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:52:49,899 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:52:49,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash -875946214, now seen corresponding path program 1 times [2023-08-26 08:52:49,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:49,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101286437] [2023-08-26 08:52:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:49,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:52:50,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:50,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101286437] [2023-08-26 08:52:50,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101286437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:50,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:50,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:52:50,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165320519] [2023-08-26 08:52:50,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:50,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:52:50,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:50,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:52:50,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:52:50,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1012 out of 2393 [2023-08-26 08:52:50,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 144 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 1019.0) internal successors, (6114), 6 states have internal predecessors, (6114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:50,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:50,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1012 of 2393 [2023-08-26 08:52:50,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:53:13,676 INFO L124 PetriNetUnfolderBase]: 158884/243232 cut-off events. [2023-08-26 08:53:13,676 INFO L125 PetriNetUnfolderBase]: For 109539/109762 co-relation queries the response was YES. [2023-08-26 08:53:14,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551585 conditions, 243232 events. 158884/243232 cut-off events. For 109539/109762 co-relation queries the response was YES. Maximal size of possible extension queue 3589. Compared 2033136 event pairs, 39300 based on Foata normal form. 34/223093 useless extension candidates. Maximal degree in co-relation 551567. Up to 88070 conditions per place. [2023-08-26 08:53:15,571 INFO L140 encePairwiseOnDemand]: 2378/2393 looper letters, 275 selfloop transitions, 16 changer transitions 67/404 dead transitions. [2023-08-26 08:53:15,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 404 transitions, 2184 flow [2023-08-26 08:53:15,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:53:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:53:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6372 transitions. [2023-08-26 08:53:15,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4437944003343084 [2023-08-26 08:53:15,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6372 transitions. [2023-08-26 08:53:15,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6372 transitions. [2023-08-26 08:53:15,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:53:15,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6372 transitions. [2023-08-26 08:53:15,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1062.0) internal successors, (6372), 6 states have internal predecessors, (6372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:15,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:15,589 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2393.0) internal successors, (16751), 7 states have internal predecessors, (16751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:15,589 INFO L175 Difference]: Start difference. First operand has 152 places, 144 transitions, 460 flow. Second operand 6 states and 6372 transitions. [2023-08-26 08:53:15,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 404 transitions, 2184 flow [2023-08-26 08:53:15,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 404 transitions, 2164 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:53:15,819 INFO L231 Difference]: Finished difference. Result has 161 places, 150 transitions, 548 flow [2023-08-26 08:53:15,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=548, PETRI_PLACES=161, PETRI_TRANSITIONS=150} [2023-08-26 08:53:15,819 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -113 predicate places. [2023-08-26 08:53:15,820 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 150 transitions, 548 flow [2023-08-26 08:53:15,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1019.0) internal successors, (6114), 6 states have internal predecessors, (6114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:15,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:53:15,820 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:53:15,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 08:53:15,821 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:53:15,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:53:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1212838989, now seen corresponding path program 1 times [2023-08-26 08:53:15,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:53:15,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404828226] [2023-08-26 08:53:15,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:15,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:53:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-26 08:53:16,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:53:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404828226] [2023-08-26 08:53:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404828226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:53:16,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:53:16,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:53:16,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982932340] [2023-08-26 08:53:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:53:16,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:53:16,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:53:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:53:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:53:16,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1053 out of 2393 [2023-08-26 08:53:16,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 150 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 1067.3333333333333) internal successors, (3202), 3 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:16,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:53:16,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1053 of 2393 [2023-08-26 08:53:16,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:53:47,371 INFO L124 PetriNetUnfolderBase]: 222262/321749 cut-off events. [2023-08-26 08:53:47,371 INFO L125 PetriNetUnfolderBase]: For 208999/209420 co-relation queries the response was YES. [2023-08-26 08:53:49,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820447 conditions, 321749 events. 222262/321749 cut-off events. For 208999/209420 co-relation queries the response was YES. Maximal size of possible extension queue 4118. Compared 2456940 event pairs, 159548 based on Foata normal form. 1738/302066 useless extension candidates. Maximal degree in co-relation 820425. Up to 160243 conditions per place. [2023-08-26 08:53:50,616 INFO L140 encePairwiseOnDemand]: 2390/2393 looper letters, 181 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2023-08-26 08:53:50,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 227 transitions, 1208 flow [2023-08-26 08:53:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:53:50,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:53:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3314 transitions. [2023-08-26 08:53:50,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616241816408971 [2023-08-26 08:53:50,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3314 transitions. [2023-08-26 08:53:50,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3314 transitions. [2023-08-26 08:53:50,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:53:50,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3314 transitions. [2023-08-26 08:53:50,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1104.6666666666667) internal successors, (3314), 3 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:50,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:50,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2393.0) internal successors, (9572), 4 states have internal predecessors, (9572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:50,633 INFO L175 Difference]: Start difference. First operand has 161 places, 150 transitions, 548 flow. Second operand 3 states and 3314 transitions. [2023-08-26 08:53:50,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 227 transitions, 1208 flow [2023-08-26 08:53:51,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 227 transitions, 1206 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 08:53:51,813 INFO L231 Difference]: Finished difference. Result has 162 places, 150 transitions, 562 flow [2023-08-26 08:53:51,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2393, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=162, PETRI_TRANSITIONS=150} [2023-08-26 08:53:51,813 INFO L281 CegarLoopForPetriNet]: 274 programPoint places, -112 predicate places. [2023-08-26 08:53:51,814 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 150 transitions, 562 flow [2023-08-26 08:53:51,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1067.3333333333333) internal successors, (3202), 3 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:51,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:53:51,814 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:53:51,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 08:53:51,814 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 281 more)] === [2023-08-26 08:53:51,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:53:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1738114006, now seen corresponding path program 1 times [2023-08-26 08:53:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:53:51,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832111710] [2023-08-26 08:53:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:53:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:53:52,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:53:52,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832111710] [2023-08-26 08:53:52,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832111710] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:53:52,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711277358] [2023-08-26 08:53:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:52,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:53:52,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:53:52,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:53:52,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 08:53:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:53,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 31 conjunts are in the unsatisfiable core [2023-08-26 08:53:53,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:53:53,657 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-08-26 08:53:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:53:53,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:53:54,033 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-26 08:53:54,034 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-08-26 08:53:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:53:54,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711277358] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:53:54,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:53:54,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 14] total 34 [2023-08-26 08:53:54,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068239998] [2023-08-26 08:53:54,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:53:54,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-08-26 08:53:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:53:54,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-08-26 08:53:54,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2023-08-26 08:53:54,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 927 out of 2393 [2023-08-26 08:53:54,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 150 transitions, 562 flow. Second operand has 34 states, 34 states have (on average 931.0294117647059) internal successors, (31655), 34 states have internal predecessors, (31655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:54,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:53:54,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 927 of 2393 [2023-08-26 08:53:54,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand