/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:05:48,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:05:48,831 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 19:05:48,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:05:48,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:05:48,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:05:48,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:05:48,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:05:48,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:05:48,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:05:48,873 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:05:48,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:05:48,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:05:48,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:05:48,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:05:48,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:05:48,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:05:48,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:05:48,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:05:48,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:05:48,880 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:05:48,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:05:48,881 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:05:48,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:05:48,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:05:48,882 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:05:48,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:05:48,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:05:48,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:05:48,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:05:48,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:05:48,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:05:48,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:05:48,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:05:48,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:05:48,885 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:05:49,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:05:49,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:05:49,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:05:49,185 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:05:49,186 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:05:49,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-25 19:05:50,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:05:50,553 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:05:50,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-25 19:05:50,562 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d582bca05/9e6fec07e8934b8bb5ced5deb941d14d/FLAG5f77765bd [2023-08-25 19:05:50,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d582bca05/9e6fec07e8934b8bb5ced5deb941d14d [2023-08-25 19:05:50,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:05:50,586 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:05:50,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:05:50,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:05:50,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:05:50,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7b04e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50, skipping insertion in model container [2023-08-25 19:05:50,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,616 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:05:50,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:05:50,823 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:05:50,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:05:50,877 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:05:50,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50 WrapperNode [2023-08-25 19:05:50,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:05:50,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:05:50,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:05:50,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:05:50,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,942 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 248 [2023-08-25 19:05:50,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:05:50,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:05:50,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:05:50,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:05:50,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:05:50,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:05:50,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:05:50,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:05:50,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (1/1) ... [2023-08-25 19:05:50,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:05:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:05:51,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 19:05:51,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 19:05:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:05:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:05:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:05:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:05:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:05:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:05:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:05:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:05:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:05:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:05:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:05:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:05:51,069 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 19:05:51,199 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:05:51,202 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:05:51,556 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:05:51,567 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:05:51,568 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:05:51,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:05:51 BoogieIcfgContainer [2023-08-25 19:05:51,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:05:51,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:05:51,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:05:51,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:05:51,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:05:50" (1/3) ... [2023-08-25 19:05:51,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6657caca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:05:51, skipping insertion in model container [2023-08-25 19:05:51,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:50" (2/3) ... [2023-08-25 19:05:51,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6657caca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:05:51, skipping insertion in model container [2023-08-25 19:05:51,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:05:51" (3/3) ... [2023-08-25 19:05:51,577 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-08-25 19:05:51,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:05:51,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 19:05:51,601 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:05:51,716 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 19:05:51,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 309 transitions, 634 flow [2023-08-25 19:05:51,834 INFO L124 PetriNetUnfolderBase]: 18/307 cut-off events. [2023-08-25 19:05:51,834 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:05:51,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 307 events. 18/307 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 626 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-25 19:05:51,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 309 transitions, 634 flow [2023-08-25 19:05:51,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 298 transitions, 608 flow [2023-08-25 19:05:51,862 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:05:51,875 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 298 transitions, 608 flow [2023-08-25 19:05:51,881 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 298 transitions, 608 flow [2023-08-25 19:05:51,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 298 transitions, 608 flow [2023-08-25 19:05:51,942 INFO L124 PetriNetUnfolderBase]: 18/298 cut-off events. [2023-08-25 19:05:51,943 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:05:51,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 298 events. 18/298 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-25 19:05:51,955 INFO L119 LiptonReduction]: Number of co-enabled transitions 15476 [2023-08-25 19:05:58,840 INFO L134 LiptonReduction]: Checked pairs total: 56101 [2023-08-25 19:05:58,840 INFO L136 LiptonReduction]: Total number of compositions: 329 [2023-08-25 19:05:58,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:05:58,859 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;@753e58e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:05:58,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-25 19:05:58,860 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:05:58,860 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:05:58,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:05:58,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:58,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:05:58,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:05:58,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:58,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2023-08-25 19:05:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:58,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209014775] [2023-08-25 19:05:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:58,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:05:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209014775] [2023-08-25 19:05:58,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209014775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:58,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:58,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:05:58,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254495816] [2023-08-25 19:05:58,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:58,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:05:58,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:58,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:05:58,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:05:58,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 638 [2023-08-25 19:05:58,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 84 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:58,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:58,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 638 [2023-08-25 19:05:58,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:59,154 INFO L124 PetriNetUnfolderBase]: 400/873 cut-off events. [2023-08-25 19:05:59,154 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-25 19:05:59,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 873 events. 400/873 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5315 event pairs, 240 based on Foata normal form. 33/689 useless extension candidates. Maximal degree in co-relation 1400. Up to 602 conditions per place. [2023-08-25 19:05:59,162 INFO L140 encePairwiseOnDemand]: 621/638 looper letters, 33 selfloop transitions, 0 changer transitions 0/67 dead transitions. [2023-08-25 19:05:59,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 212 flow [2023-08-25 19:05:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:05:59,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:05:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 644 transitions. [2023-08-25 19:05:59,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047021943573667 [2023-08-25 19:05:59,183 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 644 transitions. [2023-08-25 19:05:59,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 644 transitions. [2023-08-25 19:05:59,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:59,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 644 transitions. [2023-08-25 19:05:59,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 322.0) internal successors, (644), 2 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,200 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,202 INFO L175 Difference]: Start difference. First operand has 81 places, 84 transitions, 180 flow. Second operand 2 states and 644 transitions. [2023-08-25 19:05:59,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 212 flow [2023-08-25 19:05:59,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:05:59,208 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 138 flow [2023-08-25 19:05:59,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=138, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 19:05:59,212 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 19:05:59,213 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 138 flow [2023-08-25 19:05:59,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:59,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 19:05:59,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:05:59,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:05:59,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:59,222 INFO L85 PathProgramCache]: Analyzing trace with hash 36608344, now seen corresponding path program 1 times [2023-08-25 19:05:59,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:59,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058572905] [2023-08-25 19:05:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:59,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:05:59,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:59,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058572905] [2023-08-25 19:05:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058572905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:59,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:59,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:59,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401315026] [2023-08-25 19:05:59,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:59,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:59,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:59,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:59,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:59,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 19:05:59,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:59,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 19:05:59,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:59,476 INFO L124 PetriNetUnfolderBase]: 552/1197 cut-off events. [2023-08-25 19:05:59,476 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 19:05:59,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1197 events. 552/1197 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7253 event pairs, 162 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2050. Up to 830 conditions per place. [2023-08-25 19:05:59,484 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 42 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2023-08-25 19:05:59,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 239 flow [2023-08-25 19:05:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:59,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:59,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-25 19:05:59,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4717868338557994 [2023-08-25 19:05:59,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-25 19:05:59,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-25 19:05:59,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:59,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-25 19:05:59,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,496 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 138 flow. Second operand 3 states and 903 transitions. [2023-08-25 19:05:59,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 239 flow [2023-08-25 19:05:59,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:59,498 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 153 flow [2023-08-25 19:05:59,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 19:05:59,500 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 19:05:59,500 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 153 flow [2023-08-25 19:05:59,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:59,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:05:59,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:05:59,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:05:59,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:59,504 INFO L85 PathProgramCache]: Analyzing trace with hash 832276178, now seen corresponding path program 1 times [2023-08-25 19:05:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:59,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200151875] [2023-08-25 19:05:59,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:59,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:05:59,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200151875] [2023-08-25 19:05:59,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200151875] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:59,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:59,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:59,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958293720] [2023-08-25 19:05:59,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:59,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:59,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:59,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:59,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:59,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 19:05:59,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:59,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 19:05:59,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:59,701 INFO L124 PetriNetUnfolderBase]: 453/1032 cut-off events. [2023-08-25 19:05:59,701 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 19:05:59,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 1032 events. 453/1032 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6418 event pairs, 144 based on Foata normal form. 0/804 useless extension candidates. Maximal degree in co-relation 1750. Up to 677 conditions per place. [2023-08-25 19:05:59,706 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 37 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2023-08-25 19:05:59,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 70 transitions, 240 flow [2023-08-25 19:05:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-25 19:05:59,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46917450365726227 [2023-08-25 19:05:59,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-25 19:05:59,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-25 19:05:59,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:59,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-25 19:05:59,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,717 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 153 flow. Second operand 3 states and 898 transitions. [2023-08-25 19:05:59,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 70 transitions, 240 flow [2023-08-25 19:05:59,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:59,720 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 168 flow [2023-08-25 19:05:59,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 19:05:59,721 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 19:05:59,721 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 168 flow [2023-08-25 19:05:59,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:59,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:59,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:05:59,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:05:59,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:59,726 INFO L85 PathProgramCache]: Analyzing trace with hash -321588225, now seen corresponding path program 1 times [2023-08-25 19:05:59,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:59,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342860251] [2023-08-25 19:05:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:59,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:05:59,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:59,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342860251] [2023-08-25 19:05:59,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342860251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:59,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:59,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:59,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697233559] [2023-08-25 19:05:59,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:59,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:59,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:59,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:59,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:59,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 638 [2023-08-25 19:05:59,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:59,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 638 [2023-08-25 19:05:59,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:59,943 INFO L124 PetriNetUnfolderBase]: 434/914 cut-off events. [2023-08-25 19:05:59,943 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-25 19:05:59,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 914 events. 434/914 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5299 event pairs, 226 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 1651. Up to 516 conditions per place. [2023-08-25 19:05:59,948 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 44 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2023-08-25 19:05:59,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 297 flow [2023-08-25 19:05:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:59,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-25 19:05:59,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46917450365726227 [2023-08-25 19:05:59,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-25 19:05:59,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-25 19:05:59,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:59,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-25 19:05:59,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,959 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 168 flow. Second operand 3 states and 898 transitions. [2023-08-25 19:05:59,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 297 flow [2023-08-25 19:05:59,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 81 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:59,962 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 178 flow [2023-08-25 19:05:59,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-25 19:05:59,965 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2023-08-25 19:05:59,965 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 178 flow [2023-08-25 19:05:59,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:59,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:59,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:05:59,966 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:05:59,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1379357581, now seen corresponding path program 1 times [2023-08-25 19:05:59,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:59,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708926675] [2023-08-25 19:05:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:59,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:00,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:00,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:00,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708926675] [2023-08-25 19:06:00,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708926675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:00,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:00,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:06:00,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203540259] [2023-08-25 19:06:00,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:00,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:00,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:00,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:00,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:00,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 19:06:00,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:00,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 19:06:00,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:00,241 INFO L124 PetriNetUnfolderBase]: 673/1365 cut-off events. [2023-08-25 19:06:00,241 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2023-08-25 19:06:00,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2740 conditions, 1365 events. 673/1365 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8306 event pairs, 175 based on Foata normal form. 0/1111 useless extension candidates. Maximal degree in co-relation 2734. Up to 738 conditions per place. [2023-08-25 19:06:00,249 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-25 19:06:00,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 87 transitions, 359 flow [2023-08-25 19:06:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-08-25 19:06:00,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48014629049111807 [2023-08-25 19:06:00,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-08-25 19:06:00,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-08-25 19:06:00,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:00,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-08-25 19:06:00,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,261 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 178 flow. Second operand 3 states and 919 transitions. [2023-08-25 19:06:00,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 87 transitions, 359 flow [2023-08-25 19:06:00,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:00,269 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 181 flow [2023-08-25 19:06:00,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-25 19:06:00,269 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2023-08-25 19:06:00,269 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 181 flow [2023-08-25 19:06:00,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:00,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:00,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:06:00,271 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:00,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1581831165, now seen corresponding path program 1 times [2023-08-25 19:06:00,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:00,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420724251] [2023-08-25 19:06:00,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:00,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:00,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420724251] [2023-08-25 19:06:00,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420724251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:00,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:00,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:06:00,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407890011] [2023-08-25 19:06:00,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:00,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:00,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:00,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:00,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:00,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 19:06:00,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:00,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 19:06:00,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:00,491 INFO L124 PetriNetUnfolderBase]: 708/1404 cut-off events. [2023-08-25 19:06:00,492 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-25 19:06:00,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2736 conditions, 1404 events. 708/1404 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8215 event pairs, 187 based on Foata normal form. 0/1130 useless extension candidates. Maximal degree in co-relation 2730. Up to 789 conditions per place. [2023-08-25 19:06:00,500 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-25 19:06:00,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 87 transitions, 356 flow [2023-08-25 19:06:00,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:00,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-08-25 19:06:00,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48014629049111807 [2023-08-25 19:06:00,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-08-25 19:06:00,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-08-25 19:06:00,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:00,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-08-25 19:06:00,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,511 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 181 flow. Second operand 3 states and 919 transitions. [2023-08-25 19:06:00,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 87 transitions, 356 flow [2023-08-25 19:06:00,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:00,513 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 196 flow [2023-08-25 19:06:00,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-25 19:06:00,514 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2023-08-25 19:06:00,514 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 196 flow [2023-08-25 19:06:00,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:00,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:00,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:06:00,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:00,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash 341257858, now seen corresponding path program 1 times [2023-08-25 19:06:00,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898555227] [2023-08-25 19:06:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:00,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:00,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:00,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898555227] [2023-08-25 19:06:00,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898555227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:00,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:00,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:06:00,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670901944] [2023-08-25 19:06:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:00,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:00,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:00,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 638 [2023-08-25 19:06:00,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:00,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 638 [2023-08-25 19:06:00,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:00,719 INFO L124 PetriNetUnfolderBase]: 751/1399 cut-off events. [2023-08-25 19:06:00,719 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-25 19:06:00,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1399 events. 751/1399 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7756 event pairs, 331 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 2858. Up to 767 conditions per place. [2023-08-25 19:06:00,727 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 65 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-25 19:06:00,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 94 transitions, 393 flow [2023-08-25 19:06:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:00,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-08-25 19:06:00,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864158829676071 [2023-08-25 19:06:00,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-08-25 19:06:00,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-08-25 19:06:00,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:00,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-08-25 19:06:00,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,739 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 196 flow. Second operand 3 states and 931 transitions. [2023-08-25 19:06:00,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 94 transitions, 393 flow [2023-08-25 19:06:00,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:00,741 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 206 flow [2023-08-25 19:06:00,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2023-08-25 19:06:00,743 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 19:06:00,743 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 206 flow [2023-08-25 19:06:00,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:00,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:00,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:06:00,744 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:00,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:00,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1340250217, now seen corresponding path program 1 times [2023-08-25 19:06:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:00,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391071102] [2023-08-25 19:06:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:00,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:00,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:00,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391071102] [2023-08-25 19:06:00,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391071102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:00,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:00,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:06:00,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564659574] [2023-08-25 19:06:00,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:00,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:00,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:00,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:00,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 638 [2023-08-25 19:06:00,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:00,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 638 [2023-08-25 19:06:00,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:00,939 INFO L124 PetriNetUnfolderBase]: 761/1401 cut-off events. [2023-08-25 19:06:00,939 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-25 19:06:00,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 1401 events. 761/1401 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7585 event pairs, 337 based on Foata normal form. 0/1163 useless extension candidates. Maximal degree in co-relation 2980. Up to 761 conditions per place. [2023-08-25 19:06:00,948 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 66 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-25 19:06:00,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 408 flow [2023-08-25 19:06:00,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-08-25 19:06:00,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864158829676071 [2023-08-25 19:06:00,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-08-25 19:06:00,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-08-25 19:06:00,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:00,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-08-25 19:06:00,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,957 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 206 flow. Second operand 3 states and 931 transitions. [2023-08-25 19:06:00,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 408 flow [2023-08-25 19:06:00,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 94 transitions, 408 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:00,960 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 216 flow [2023-08-25 19:06:00,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-25 19:06:00,960 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2023-08-25 19:06:00,960 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 216 flow [2023-08-25 19:06:00,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:00,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:00,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:06:00,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:00,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1440892745, now seen corresponding path program 1 times [2023-08-25 19:06:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:00,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629381608] [2023-08-25 19:06:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:01,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:01,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629381608] [2023-08-25 19:06:01,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629381608] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:01,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:01,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:01,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721159253] [2023-08-25 19:06:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:01,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:01,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:01,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:01,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:01,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:01,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:01,447 INFO L124 PetriNetUnfolderBase]: 753/1587 cut-off events. [2023-08-25 19:06:01,447 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-25 19:06:01,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1587 events. 753/1587 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10224 event pairs, 155 based on Foata normal form. 2/1387 useless extension candidates. Maximal degree in co-relation 3464. Up to 845 conditions per place. [2023-08-25 19:06:01,456 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 63 selfloop transitions, 4 changer transitions 8/104 dead transitions. [2023-08-25 19:06:01,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 460 flow [2023-08-25 19:06:01,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1475 transitions. [2023-08-25 19:06:01,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46238244514106586 [2023-08-25 19:06:01,460 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1475 transitions. [2023-08-25 19:06:01,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1475 transitions. [2023-08-25 19:06:01,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:01,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1475 transitions. [2023-08-25 19:06:01,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,467 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,468 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 216 flow. Second operand 5 states and 1475 transitions. [2023-08-25 19:06:01,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 460 flow [2023-08-25 19:06:01,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 104 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:01,470 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 250 flow [2023-08-25 19:06:01,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2023-08-25 19:06:01,471 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -9 predicate places. [2023-08-25 19:06:01,471 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 250 flow [2023-08-25 19:06:01,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:01,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:01,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:06:01,472 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:01,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:01,473 INFO L85 PathProgramCache]: Analyzing trace with hash -932150495, now seen corresponding path program 2 times [2023-08-25 19:06:01,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:01,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721070191] [2023-08-25 19:06:01,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:01,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:01,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:01,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721070191] [2023-08-25 19:06:01,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721070191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:01,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:01,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:01,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101475156] [2023-08-25 19:06:01,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:01,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:01,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:01,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:01,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:01,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:01,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:01,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:01,913 INFO L124 PetriNetUnfolderBase]: 902/1900 cut-off events. [2023-08-25 19:06:01,913 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2023-08-25 19:06:01,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 1900 events. 902/1900 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 13058 event pairs, 546 based on Foata normal form. 2/1716 useless extension candidates. Maximal degree in co-relation 4482. Up to 1216 conditions per place. [2023-08-25 19:06:01,926 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 70 selfloop transitions, 2 changer transitions 8/109 dead transitions. [2023-08-25 19:06:01,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 531 flow [2023-08-25 19:06:01,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1475 transitions. [2023-08-25 19:06:01,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46238244514106586 [2023-08-25 19:06:01,931 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1475 transitions. [2023-08-25 19:06:01,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1475 transitions. [2023-08-25 19:06:01,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:01,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1475 transitions. [2023-08-25 19:06:01,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,939 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,939 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 250 flow. Second operand 5 states and 1475 transitions. [2023-08-25 19:06:01,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 531 flow [2023-08-25 19:06:01,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 109 transitions, 516 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:01,944 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 264 flow [2023-08-25 19:06:01,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2023-08-25 19:06:01,944 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-25 19:06:01,945 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 264 flow [2023-08-25 19:06:01,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:01,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:01,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:01,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:06:01,946 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:01,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:01,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1337850704, now seen corresponding path program 1 times [2023-08-25 19:06:01,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:01,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047504538] [2023-08-25 19:06:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:01,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:02,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047504538] [2023-08-25 19:06:02,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047504538] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:02,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:02,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:02,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194138001] [2023-08-25 19:06:02,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:02,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:02,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:02,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:02,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:02,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:02,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:02,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:02,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:02,690 INFO L124 PetriNetUnfolderBase]: 1010/2269 cut-off events. [2023-08-25 19:06:02,690 INFO L125 PetriNetUnfolderBase]: For 869/871 co-relation queries the response was YES. [2023-08-25 19:06:02,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5379 conditions, 2269 events. 1010/2269 cut-off events. For 869/871 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16285 event pairs, 124 based on Foata normal form. 19/2124 useless extension candidates. Maximal degree in co-relation 5363. Up to 605 conditions per place. [2023-08-25 19:06:02,705 INFO L140 encePairwiseOnDemand]: 620/638 looper letters, 109 selfloop transitions, 32 changer transitions 5/175 dead transitions. [2023-08-25 19:06:02,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 175 transitions, 904 flow [2023-08-25 19:06:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:06:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:06:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2599 transitions. [2023-08-25 19:06:02,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45262974573319403 [2023-08-25 19:06:02,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2599 transitions. [2023-08-25 19:06:02,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2599 transitions. [2023-08-25 19:06:02,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:02,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2599 transitions. [2023-08-25 19:06:02,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 288.77777777777777) internal successors, (2599), 9 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:02,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:02,726 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:02,726 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 264 flow. Second operand 9 states and 2599 transitions. [2023-08-25 19:06:02,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 175 transitions, 904 flow [2023-08-25 19:06:02,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 175 transitions, 889 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:02,733 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 524 flow [2023-08-25 19:06:02,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=524, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2023-08-25 19:06:02,734 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 7 predicate places. [2023-08-25 19:06:02,734 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 524 flow [2023-08-25 19:06:02,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:02,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:02,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:02,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:06:02,735 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:02,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash -928608975, now seen corresponding path program 3 times [2023-08-25 19:06:02,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:02,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205495948] [2023-08-25 19:06:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:02,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:02,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:02,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205495948] [2023-08-25 19:06:02,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205495948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:02,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:02,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:02,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820487019] [2023-08-25 19:06:02,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:02,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:02,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:02,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:02,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:02,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:02,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:02,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:02,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:02,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:03,178 INFO L124 PetriNetUnfolderBase]: 1007/2238 cut-off events. [2023-08-25 19:06:03,178 INFO L125 PetriNetUnfolderBase]: For 2549/2563 co-relation queries the response was YES. [2023-08-25 19:06:03,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6247 conditions, 2238 events. 1007/2238 cut-off events. For 2549/2563 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16068 event pairs, 327 based on Foata normal form. 7/2089 useless extension candidates. Maximal degree in co-relation 6226. Up to 1355 conditions per place. [2023-08-25 19:06:03,196 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 87 selfloop transitions, 6 changer transitions 10/132 dead transitions. [2023-08-25 19:06:03,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 132 transitions, 888 flow [2023-08-25 19:06:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:03,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:03,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1469 transitions. [2023-08-25 19:06:03,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46050156739811915 [2023-08-25 19:06:03,201 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1469 transitions. [2023-08-25 19:06:03,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1469 transitions. [2023-08-25 19:06:03,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:03,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1469 transitions. [2023-08-25 19:06:03,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.8) internal successors, (1469), 5 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,208 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,208 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 524 flow. Second operand 5 states and 1469 transitions. [2023-08-25 19:06:03,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 132 transitions, 888 flow [2023-08-25 19:06:03,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 132 transitions, 860 flow, removed 14 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:03,223 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 535 flow [2023-08-25 19:06:03,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=535, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2023-08-25 19:06:03,224 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-25 19:06:03,224 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 535 flow [2023-08-25 19:06:03,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:03,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:03,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:06:03,225 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:03,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1917284318, now seen corresponding path program 2 times [2023-08-25 19:06:03,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:03,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670782235] [2023-08-25 19:06:03,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:03,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:03,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:03,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670782235] [2023-08-25 19:06:03,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670782235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:03,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:03,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:03,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208169168] [2023-08-25 19:06:03,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:03,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:03,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:03,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:03,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:03,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:03,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:03,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:03,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:03,752 INFO L124 PetriNetUnfolderBase]: 976/2137 cut-off events. [2023-08-25 19:06:03,752 INFO L125 PetriNetUnfolderBase]: For 2938/2957 co-relation queries the response was YES. [2023-08-25 19:06:03,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6055 conditions, 2137 events. 976/2137 cut-off events. For 2938/2957 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 15049 event pairs, 297 based on Foata normal form. 13/2006 useless extension candidates. Maximal degree in co-relation 6030. Up to 1371 conditions per place. [2023-08-25 19:06:03,768 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 82 selfloop transitions, 22 changer transitions 9/142 dead transitions. [2023-08-25 19:06:03,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 142 transitions, 959 flow [2023-08-25 19:06:03,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:06:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:06:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2003 transitions. [2023-08-25 19:06:03,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44849977608598296 [2023-08-25 19:06:03,774 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2003 transitions. [2023-08-25 19:06:03,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2003 transitions. [2023-08-25 19:06:03,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:03,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2003 transitions. [2023-08-25 19:06:03,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 286.14285714285717) internal successors, (2003), 7 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,783 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,784 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 535 flow. Second operand 7 states and 2003 transitions. [2023-08-25 19:06:03,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 142 transitions, 959 flow [2023-08-25 19:06:03,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 142 transitions, 948 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:03,794 INFO L231 Difference]: Finished difference. Result has 101 places, 98 transitions, 630 flow [2023-08-25 19:06:03,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=630, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2023-08-25 19:06:03,795 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 20 predicate places. [2023-08-25 19:06:03,795 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 630 flow [2023-08-25 19:06:03,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:03,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:03,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:06:03,796 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:03,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1166658950, now seen corresponding path program 3 times [2023-08-25 19:06:03,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:03,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668785789] [2023-08-25 19:06:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:03,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:03,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668785789] [2023-08-25 19:06:03,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668785789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:03,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:03,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:03,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493191850] [2023-08-25 19:06:03,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:03,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:03,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:03,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:03,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:03,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:03,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 98 transitions, 630 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:03,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:03,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:04,283 INFO L124 PetriNetUnfolderBase]: 835/1848 cut-off events. [2023-08-25 19:06:04,284 INFO L125 PetriNetUnfolderBase]: For 2987/3000 co-relation queries the response was YES. [2023-08-25 19:06:04,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5607 conditions, 1848 events. 835/1848 cut-off events. For 2987/3000 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 12401 event pairs, 212 based on Foata normal form. 29/1759 useless extension candidates. Maximal degree in co-relation 5580. Up to 889 conditions per place. [2023-08-25 19:06:04,299 INFO L140 encePairwiseOnDemand]: 622/638 looper letters, 88 selfloop transitions, 26 changer transitions 14/157 dead transitions. [2023-08-25 19:06:04,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 157 transitions, 1109 flow [2023-08-25 19:06:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:06:04,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:06:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2299 transitions. [2023-08-25 19:06:04,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4504310344827586 [2023-08-25 19:06:04,305 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2299 transitions. [2023-08-25 19:06:04,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2299 transitions. [2023-08-25 19:06:04,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:04,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2299 transitions. [2023-08-25 19:06:04,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 287.375) internal successors, (2299), 8 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,316 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,316 INFO L175 Difference]: Start difference. First operand has 101 places, 98 transitions, 630 flow. Second operand 8 states and 2299 transitions. [2023-08-25 19:06:04,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 157 transitions, 1109 flow [2023-08-25 19:06:04,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 157 transitions, 1061 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-25 19:06:04,328 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 654 flow [2023-08-25 19:06:04,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=654, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2023-08-25 19:06:04,329 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2023-08-25 19:06:04,329 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 654 flow [2023-08-25 19:06:04,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:04,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:04,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:06:04,330 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:04,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:04,330 INFO L85 PathProgramCache]: Analyzing trace with hash -218850480, now seen corresponding path program 4 times [2023-08-25 19:06:04,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:04,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544716765] [2023-08-25 19:06:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:04,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:04,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:04,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544716765] [2023-08-25 19:06:04,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544716765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:04,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:04,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:04,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609746084] [2023-08-25 19:06:04,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:04,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:04,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:04,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:04,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:04,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:04,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:04,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:04,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:04,847 INFO L124 PetriNetUnfolderBase]: 800/1759 cut-off events. [2023-08-25 19:06:04,847 INFO L125 PetriNetUnfolderBase]: For 3292/3311 co-relation queries the response was YES. [2023-08-25 19:06:04,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5419 conditions, 1759 events. 800/1759 cut-off events. For 3292/3311 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 11648 event pairs, 190 based on Foata normal form. 15/1656 useless extension candidates. Maximal degree in co-relation 5392. Up to 889 conditions per place. [2023-08-25 19:06:04,861 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 82 selfloop transitions, 23 changer transitions 18/152 dead transitions. [2023-08-25 19:06:04,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 152 transitions, 1066 flow [2023-08-25 19:06:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:06:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:06:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2019 transitions. [2023-08-25 19:06:04,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4520824003582624 [2023-08-25 19:06:04,867 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2019 transitions. [2023-08-25 19:06:04,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2019 transitions. [2023-08-25 19:06:04,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:04,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2019 transitions. [2023-08-25 19:06:04,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 288.42857142857144) internal successors, (2019), 7 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,878 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,878 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 654 flow. Second operand 7 states and 2019 transitions. [2023-08-25 19:06:04,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 152 transitions, 1066 flow [2023-08-25 19:06:04,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 152 transitions, 1024 flow, removed 13 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:04,892 INFO L231 Difference]: Finished difference. Result has 108 places, 93 transitions, 618 flow [2023-08-25 19:06:04,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=618, PETRI_PLACES=108, PETRI_TRANSITIONS=93} [2023-08-25 19:06:04,892 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 27 predicate places. [2023-08-25 19:06:04,893 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 93 transitions, 618 flow [2023-08-25 19:06:04,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:04,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:04,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:06:04,894 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:04,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash 536260888, now seen corresponding path program 1 times [2023-08-25 19:06:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:04,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122572109] [2023-08-25 19:06:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:04,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:04,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:04,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122572109] [2023-08-25 19:06:04,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122572109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:04,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:04,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:04,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706899148] [2023-08-25 19:06:04,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:04,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:04,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:04,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:04,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:04,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:04,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 93 transitions, 618 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:04,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:04,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:04,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:05,213 INFO L124 PetriNetUnfolderBase]: 628/1457 cut-off events. [2023-08-25 19:06:05,213 INFO L125 PetriNetUnfolderBase]: For 2630/2630 co-relation queries the response was YES. [2023-08-25 19:06:05,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 1457 events. 628/1457 cut-off events. For 2630/2630 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 9307 event pairs, 212 based on Foata normal form. 43/1396 useless extension candidates. Maximal degree in co-relation 4256. Up to 1082 conditions per place. [2023-08-25 19:06:05,223 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 58 selfloop transitions, 5 changer transitions 8/100 dead transitions. [2023-08-25 19:06:05,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 100 transitions, 672 flow [2023-08-25 19:06:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2023-08-25 19:06:05,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567398119122257 [2023-08-25 19:06:05,228 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1457 transitions. [2023-08-25 19:06:05,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1457 transitions. [2023-08-25 19:06:05,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:05,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1457 transitions. [2023-08-25 19:06:05,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,235 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,235 INFO L175 Difference]: Start difference. First operand has 108 places, 93 transitions, 618 flow. Second operand 5 states and 1457 transitions. [2023-08-25 19:06:05,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 100 transitions, 672 flow [2023-08-25 19:06:05,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 100 transitions, 579 flow, removed 10 selfloop flow, removed 13 redundant places. [2023-08-25 19:06:05,242 INFO L231 Difference]: Finished difference. Result has 93 places, 80 transitions, 407 flow [2023-08-25 19:06:05,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=407, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2023-08-25 19:06:05,243 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2023-08-25 19:06:05,243 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 407 flow [2023-08-25 19:06:05,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:05,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:05,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:06:05,244 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:05,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2141422464, now seen corresponding path program 2 times [2023-08-25 19:06:05,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:05,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119790373] [2023-08-25 19:06:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:05,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:05,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119790373] [2023-08-25 19:06:05,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119790373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:05,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:05,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:05,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717784723] [2023-08-25 19:06:05,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:05,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:05,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:05,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:05,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:05,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:05,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:05,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:05,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:05,558 INFO L124 PetriNetUnfolderBase]: 613/1408 cut-off events. [2023-08-25 19:06:05,558 INFO L125 PetriNetUnfolderBase]: For 1095/1095 co-relation queries the response was YES. [2023-08-25 19:06:05,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 1408 events. 613/1408 cut-off events. For 1095/1095 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8997 event pairs, 422 based on Foata normal form. 1/1279 useless extension candidates. Maximal degree in co-relation 3735. Up to 1062 conditions per place. [2023-08-25 19:06:05,568 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 54 selfloop transitions, 3 changer transitions 10/96 dead transitions. [2023-08-25 19:06:05,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 96 transitions, 589 flow [2023-08-25 19:06:05,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1449 transitions. [2023-08-25 19:06:05,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542319749216301 [2023-08-25 19:06:05,573 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1449 transitions. [2023-08-25 19:06:05,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1449 transitions. [2023-08-25 19:06:05,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:05,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1449 transitions. [2023-08-25 19:06:05,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 289.8) internal successors, (1449), 5 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,580 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,580 INFO L175 Difference]: Start difference. First operand has 93 places, 80 transitions, 407 flow. Second operand 5 states and 1449 transitions. [2023-08-25 19:06:05,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 96 transitions, 589 flow [2023-08-25 19:06:05,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 96 transitions, 576 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:05,586 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 406 flow [2023-08-25 19:06:05,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2023-08-25 19:06:05,587 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-25 19:06:05,587 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 406 flow [2023-08-25 19:06:05,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:05,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:05,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:06:05,588 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:05,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:05,588 INFO L85 PathProgramCache]: Analyzing trace with hash 967761938, now seen corresponding path program 3 times [2023-08-25 19:06:05,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:05,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154674655] [2023-08-25 19:06:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:05,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:05,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:05,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154674655] [2023-08-25 19:06:05,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154674655] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:05,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:05,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781311938] [2023-08-25 19:06:05,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:05,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:05,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:05,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:05,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:05,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:05,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:05,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:05,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:05,941 INFO L124 PetriNetUnfolderBase]: 684/1597 cut-off events. [2023-08-25 19:06:05,941 INFO L125 PetriNetUnfolderBase]: For 1140/1146 co-relation queries the response was YES. [2023-08-25 19:06:05,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4177 conditions, 1597 events. 684/1597 cut-off events. For 1140/1146 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 10666 event pairs, 236 based on Foata normal form. 7/1487 useless extension candidates. Maximal degree in co-relation 4154. Up to 970 conditions per place. [2023-08-25 19:06:05,953 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 59 selfloop transitions, 6 changer transitions 15/107 dead transitions. [2023-08-25 19:06:05,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 107 transitions, 650 flow [2023-08-25 19:06:05,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1465 transitions. [2023-08-25 19:06:05,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592476489028213 [2023-08-25 19:06:05,957 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1465 transitions. [2023-08-25 19:06:05,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1465 transitions. [2023-08-25 19:06:05,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:05,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1465 transitions. [2023-08-25 19:06:05,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,966 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,966 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 406 flow. Second operand 5 states and 1465 transitions. [2023-08-25 19:06:05,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 107 transitions, 650 flow [2023-08-25 19:06:05,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 107 transitions, 639 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:05,972 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 343 flow [2023-08-25 19:06:05,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=343, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2023-08-25 19:06:05,972 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-25 19:06:05,973 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 343 flow [2023-08-25 19:06:05,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:05,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:05,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:05,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:06:05,974 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:05,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1767042383, now seen corresponding path program 1 times [2023-08-25 19:06:05,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:05,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708489974] [2023-08-25 19:06:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:06,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:06,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708489974] [2023-08-25 19:06:06,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708489974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:06,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:06,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:06,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689822108] [2023-08-25 19:06:06,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:06,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:06,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:06,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:06,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:06,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:06,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 343 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:06,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:06,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:06,378 INFO L124 PetriNetUnfolderBase]: 631/1558 cut-off events. [2023-08-25 19:06:06,378 INFO L125 PetriNetUnfolderBase]: For 1126/1132 co-relation queries the response was YES. [2023-08-25 19:06:06,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3987 conditions, 1558 events. 631/1558 cut-off events. For 1126/1132 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10687 event pairs, 225 based on Foata normal form. 23/1489 useless extension candidates. Maximal degree in co-relation 3965. Up to 490 conditions per place. [2023-08-25 19:06:06,388 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 75 selfloop transitions, 4 changer transitions 8/114 dead transitions. [2023-08-25 19:06:06,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 114 transitions, 666 flow [2023-08-25 19:06:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1474 transitions. [2023-08-25 19:06:06,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2023-08-25 19:06:06,392 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1474 transitions. [2023-08-25 19:06:06,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1474 transitions. [2023-08-25 19:06:06,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:06,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1474 transitions. [2023-08-25 19:06:06,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,398 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,399 INFO L175 Difference]: Start difference. First operand has 95 places, 70 transitions, 343 flow. Second operand 5 states and 1474 transitions. [2023-08-25 19:06:06,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 114 transitions, 666 flow [2023-08-25 19:06:06,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 114 transitions, 642 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-25 19:06:06,404 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 362 flow [2023-08-25 19:06:06,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2023-08-25 19:06:06,405 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 8 predicate places. [2023-08-25 19:06:06,405 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 362 flow [2023-08-25 19:06:06,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:06,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:06,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:06:06,405 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:06,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:06,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1947371577, now seen corresponding path program 1 times [2023-08-25 19:06:06,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:06,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148858283] [2023-08-25 19:06:06,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:06,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:06,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:06,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148858283] [2023-08-25 19:06:06,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148858283] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:06,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:06,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:06,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933500049] [2023-08-25 19:06:06,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:06,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:06,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:06,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:06,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:06,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:06,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:06,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:06,751 INFO L124 PetriNetUnfolderBase]: 612/1581 cut-off events. [2023-08-25 19:06:06,751 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES. [2023-08-25 19:06:06,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4228 conditions, 1581 events. 612/1581 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 11092 event pairs, 245 based on Foata normal form. 21/1556 useless extension candidates. Maximal degree in co-relation 4208. Up to 611 conditions per place. [2023-08-25 19:06:06,762 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 72 selfloop transitions, 4 changer transitions 7/110 dead transitions. [2023-08-25 19:06:06,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 110 transitions, 678 flow [2023-08-25 19:06:06,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1467 transitions. [2023-08-25 19:06:06,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4598746081504702 [2023-08-25 19:06:06,766 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1467 transitions. [2023-08-25 19:06:06,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1467 transitions. [2023-08-25 19:06:06,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:06,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1467 transitions. [2023-08-25 19:06:06,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,773 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,773 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 362 flow. Second operand 5 states and 1467 transitions. [2023-08-25 19:06:06,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 110 transitions, 678 flow [2023-08-25 19:06:06,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 666 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:06,780 INFO L231 Difference]: Finished difference. Result has 94 places, 76 transitions, 406 flow [2023-08-25 19:06:06,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=94, PETRI_TRANSITIONS=76} [2023-08-25 19:06:06,781 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 13 predicate places. [2023-08-25 19:06:06,781 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 76 transitions, 406 flow [2023-08-25 19:06:06,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:06,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:06,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:06:06,782 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:06,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:06,782 INFO L85 PathProgramCache]: Analyzing trace with hash -471974612, now seen corresponding path program 1 times [2023-08-25 19:06:06,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:06,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553182725] [2023-08-25 19:06:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:06,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:06,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553182725] [2023-08-25 19:06:06,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553182725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:06,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:06,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:06,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49303506] [2023-08-25 19:06:06,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:06,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:06,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:06,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:06,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:06,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:06,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 76 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:06,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:06,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:06,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:07,258 INFO L124 PetriNetUnfolderBase]: 524/1343 cut-off events. [2023-08-25 19:06:07,258 INFO L125 PetriNetUnfolderBase]: For 1550/1584 co-relation queries the response was YES. [2023-08-25 19:06:07,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3781 conditions, 1343 events. 524/1343 cut-off events. For 1550/1584 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 8928 event pairs, 149 based on Foata normal form. 33/1352 useless extension candidates. Maximal degree in co-relation 3758. Up to 481 conditions per place. [2023-08-25 19:06:07,266 INFO L140 encePairwiseOnDemand]: 622/638 looper letters, 85 selfloop transitions, 17 changer transitions 14/143 dead transitions. [2023-08-25 19:06:07,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 143 transitions, 902 flow [2023-08-25 19:06:07,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 19:06:07,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 19:06:07,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2836 transitions. [2023-08-25 19:06:07,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4445141065830721 [2023-08-25 19:06:07,272 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2836 transitions. [2023-08-25 19:06:07,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2836 transitions. [2023-08-25 19:06:07,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:07,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2836 transitions. [2023-08-25 19:06:07,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 283.6) internal successors, (2836), 10 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 638.0) internal successors, (7018), 11 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,284 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 638.0) internal successors, (7018), 11 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,284 INFO L175 Difference]: Start difference. First operand has 94 places, 76 transitions, 406 flow. Second operand 10 states and 2836 transitions. [2023-08-25 19:06:07,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 143 transitions, 902 flow [2023-08-25 19:06:07,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 143 transitions, 894 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:07,292 INFO L231 Difference]: Finished difference. Result has 106 places, 80 transitions, 485 flow [2023-08-25 19:06:07,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=485, PETRI_PLACES=106, PETRI_TRANSITIONS=80} [2023-08-25 19:06:07,292 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2023-08-25 19:06:07,292 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 80 transitions, 485 flow [2023-08-25 19:06:07,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:07,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:07,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:06:07,293 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:07,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:07,293 INFO L85 PathProgramCache]: Analyzing trace with hash -28812459, now seen corresponding path program 2 times [2023-08-25 19:06:07,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:07,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020088919] [2023-08-25 19:06:07,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:07,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:07,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:07,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020088919] [2023-08-25 19:06:07,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020088919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:07,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:07,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:07,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448452005] [2023-08-25 19:06:07,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:07,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:07,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:07,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:07,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:07,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:07,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 80 transitions, 485 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:07,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:07,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:07,653 INFO L124 PetriNetUnfolderBase]: 499/1305 cut-off events. [2023-08-25 19:06:07,653 INFO L125 PetriNetUnfolderBase]: For 2314/2328 co-relation queries the response was YES. [2023-08-25 19:06:07,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3907 conditions, 1305 events. 499/1305 cut-off events. For 2314/2328 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8629 event pairs, 238 based on Foata normal form. 12/1297 useless extension candidates. Maximal degree in co-relation 3879. Up to 490 conditions per place. [2023-08-25 19:06:07,662 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 70 selfloop transitions, 4 changer transitions 10/111 dead transitions. [2023-08-25 19:06:07,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 766 flow [2023-08-25 19:06:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1465 transitions. [2023-08-25 19:06:07,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592476489028213 [2023-08-25 19:06:07,665 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1465 transitions. [2023-08-25 19:06:07,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1465 transitions. [2023-08-25 19:06:07,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:07,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1465 transitions. [2023-08-25 19:06:07,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,671 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,671 INFO L175 Difference]: Start difference. First operand has 106 places, 80 transitions, 485 flow. Second operand 5 states and 1465 transitions. [2023-08-25 19:06:07,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 766 flow [2023-08-25 19:06:07,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 111 transitions, 746 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:07,680 INFO L231 Difference]: Finished difference. Result has 108 places, 77 transitions, 454 flow [2023-08-25 19:06:07,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=108, PETRI_TRANSITIONS=77} [2023-08-25 19:06:07,680 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 27 predicate places. [2023-08-25 19:06:07,680 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 77 transitions, 454 flow [2023-08-25 19:06:07,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:07,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:07,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:06:07,681 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:07,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:07,682 INFO L85 PathProgramCache]: Analyzing trace with hash 72549352, now seen corresponding path program 2 times [2023-08-25 19:06:07,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:07,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52223180] [2023-08-25 19:06:07,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:07,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:07,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52223180] [2023-08-25 19:06:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52223180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:07,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:07,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:07,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744815873] [2023-08-25 19:06:07,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:07,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:07,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:07,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:07,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:07,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 77 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:07,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:07,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:08,189 INFO L124 PetriNetUnfolderBase]: 433/1128 cut-off events. [2023-08-25 19:06:08,190 INFO L125 PetriNetUnfolderBase]: For 2280/2310 co-relation queries the response was YES. [2023-08-25 19:06:08,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3467 conditions, 1128 events. 433/1128 cut-off events. For 2280/2310 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7212 event pairs, 124 based on Foata normal form. 23/1121 useless extension candidates. Maximal degree in co-relation 3439. Up to 447 conditions per place. [2023-08-25 19:06:08,197 INFO L140 encePairwiseOnDemand]: 625/638 looper letters, 68 selfloop transitions, 12 changer transitions 15/122 dead transitions. [2023-08-25 19:06:08,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 122 transitions, 796 flow [2023-08-25 19:06:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:06:08,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:06:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2541 transitions. [2023-08-25 19:06:08,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4425287356321839 [2023-08-25 19:06:08,201 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2541 transitions. [2023-08-25 19:06:08,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2541 transitions. [2023-08-25 19:06:08,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:08,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2541 transitions. [2023-08-25 19:06:08,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 282.3333333333333) internal successors, (2541), 9 states have internal predecessors, (2541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,210 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,210 INFO L175 Difference]: Start difference. First operand has 108 places, 77 transitions, 454 flow. Second operand 9 states and 2541 transitions. [2023-08-25 19:06:08,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 122 transitions, 796 flow [2023-08-25 19:06:08,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 122 transitions, 782 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:08,218 INFO L231 Difference]: Finished difference. Result has 114 places, 74 transitions, 452 flow [2023-08-25 19:06:08,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=452, PETRI_PLACES=114, PETRI_TRANSITIONS=74} [2023-08-25 19:06:08,218 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 33 predicate places. [2023-08-25 19:06:08,218 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 74 transitions, 452 flow [2023-08-25 19:06:08,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:08,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:08,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:06:08,219 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:08,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2041876265, now seen corresponding path program 2 times [2023-08-25 19:06:08,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:08,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108815462] [2023-08-25 19:06:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:08,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:08,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108815462] [2023-08-25 19:06:08,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108815462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:08,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:08,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:08,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022597421] [2023-08-25 19:06:08,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:08,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:08,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:08,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:08,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:08,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 74 transitions, 452 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:08,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:08,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:08,559 INFO L124 PetriNetUnfolderBase]: 433/1142 cut-off events. [2023-08-25 19:06:08,559 INFO L125 PetriNetUnfolderBase]: For 2479/2503 co-relation queries the response was YES. [2023-08-25 19:06:08,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3571 conditions, 1142 events. 433/1142 cut-off events. For 2479/2503 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7278 event pairs, 198 based on Foata normal form. 7/1126 useless extension candidates. Maximal degree in co-relation 3542. Up to 451 conditions per place. [2023-08-25 19:06:08,567 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 60 selfloop transitions, 2 changer transitions 11/100 dead transitions. [2023-08-25 19:06:08,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 100 transitions, 706 flow [2023-08-25 19:06:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2023-08-25 19:06:08,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567398119122257 [2023-08-25 19:06:08,569 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1457 transitions. [2023-08-25 19:06:08,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1457 transitions. [2023-08-25 19:06:08,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:08,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1457 transitions. [2023-08-25 19:06:08,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,575 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,575 INFO L175 Difference]: Start difference. First operand has 114 places, 74 transitions, 452 flow. Second operand 5 states and 1457 transitions. [2023-08-25 19:06:08,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 100 transitions, 706 flow [2023-08-25 19:06:08,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 100 transitions, 664 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-25 19:06:08,583 INFO L231 Difference]: Finished difference. Result has 109 places, 74 transitions, 429 flow [2023-08-25 19:06:08,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=109, PETRI_TRANSITIONS=74} [2023-08-25 19:06:08,583 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 19:06:08,583 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 74 transitions, 429 flow [2023-08-25 19:06:08,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:08,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:08,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 19:06:08,584 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:08,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1050976877, now seen corresponding path program 3 times [2023-08-25 19:06:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:08,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505367562] [2023-08-25 19:06:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:08,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:08,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505367562] [2023-08-25 19:06:08,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505367562] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:08,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:08,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:08,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71991794] [2023-08-25 19:06:08,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:08,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:08,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:08,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:08,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:08,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:08,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 74 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:08,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:08,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:08,920 INFO L124 PetriNetUnfolderBase]: 423/1110 cut-off events. [2023-08-25 19:06:08,920 INFO L125 PetriNetUnfolderBase]: For 2175/2207 co-relation queries the response was YES. [2023-08-25 19:06:08,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 1110 events. 423/1110 cut-off events. For 2175/2207 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6989 event pairs, 232 based on Foata normal form. 5/1093 useless extension candidates. Maximal degree in co-relation 3344. Up to 504 conditions per place. [2023-08-25 19:06:08,926 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 58 selfloop transitions, 3 changer transitions 12/100 dead transitions. [2023-08-25 19:06:08,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 669 flow [2023-08-25 19:06:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1459 transitions. [2023-08-25 19:06:08,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573667711598746 [2023-08-25 19:06:08,930 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1459 transitions. [2023-08-25 19:06:08,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1459 transitions. [2023-08-25 19:06:08,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:08,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1459 transitions. [2023-08-25 19:06:08,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,935 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,936 INFO L175 Difference]: Start difference. First operand has 109 places, 74 transitions, 429 flow. Second operand 5 states and 1459 transitions. [2023-08-25 19:06:08,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 669 flow [2023-08-25 19:06:08,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 100 transitions, 657 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-25 19:06:08,943 INFO L231 Difference]: Finished difference. Result has 109 places, 73 transitions, 424 flow [2023-08-25 19:06:08,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=424, PETRI_PLACES=109, PETRI_TRANSITIONS=73} [2023-08-25 19:06:08,944 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 19:06:08,944 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 73 transitions, 424 flow [2023-08-25 19:06:08,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:08,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:08,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 19:06:08,945 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:08,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2027872018, now seen corresponding path program 3 times [2023-08-25 19:06:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:08,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068888643] [2023-08-25 19:06:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068888643] [2023-08-25 19:06:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068888643] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:09,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:06:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517563754] [2023-08-25 19:06:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:09,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:06:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:06:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:06:09,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 19:06:09,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 73 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:09,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 19:06:09,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:09,414 INFO L124 PetriNetUnfolderBase]: 393/1031 cut-off events. [2023-08-25 19:06:09,414 INFO L125 PetriNetUnfolderBase]: For 2156/2192 co-relation queries the response was YES. [2023-08-25 19:06:09,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3217 conditions, 1031 events. 393/1031 cut-off events. For 2156/2192 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6413 event pairs, 116 based on Foata normal form. 10/1017 useless extension candidates. Maximal degree in co-relation 3190. Up to 381 conditions per place. [2023-08-25 19:06:09,421 INFO L140 encePairwiseOnDemand]: 626/638 looper letters, 65 selfloop transitions, 10 changer transitions 12/113 dead transitions. [2023-08-25 19:06:09,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 113 transitions, 734 flow [2023-08-25 19:06:09,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:06:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:06:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2260 transitions. [2023-08-25 19:06:09,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427899686520376 [2023-08-25 19:06:09,425 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2260 transitions. [2023-08-25 19:06:09,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2260 transitions. [2023-08-25 19:06:09,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:09,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2260 transitions. [2023-08-25 19:06:09,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 282.5) internal successors, (2260), 8 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,432 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,432 INFO L175 Difference]: Start difference. First operand has 109 places, 73 transitions, 424 flow. Second operand 8 states and 2260 transitions. [2023-08-25 19:06:09,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 113 transitions, 734 flow [2023-08-25 19:06:09,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 723 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:09,440 INFO L231 Difference]: Finished difference. Result has 112 places, 70 transitions, 421 flow [2023-08-25 19:06:09,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=421, PETRI_PLACES=112, PETRI_TRANSITIONS=70} [2023-08-25 19:06:09,441 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 31 predicate places. [2023-08-25 19:06:09,441 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 70 transitions, 421 flow [2023-08-25 19:06:09,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:09,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:09,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 19:06:09,441 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:09,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1489945679, now seen corresponding path program 3 times [2023-08-25 19:06:09,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:09,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783656239] [2023-08-25 19:06:09,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:09,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:09,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:09,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783656239] [2023-08-25 19:06:09,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783656239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:09,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:09,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:09,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664061670] [2023-08-25 19:06:09,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:09,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:09,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:09,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:09,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 19:06:09,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 70 transitions, 421 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:09,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 19:06:09,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:09,807 INFO L124 PetriNetUnfolderBase]: 370/978 cut-off events. [2023-08-25 19:06:09,807 INFO L125 PetriNetUnfolderBase]: For 2247/2275 co-relation queries the response was YES. [2023-08-25 19:06:09,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3133 conditions, 978 events. 370/978 cut-off events. For 2247/2275 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5977 event pairs, 200 based on Foata normal form. 8/960 useless extension candidates. Maximal degree in co-relation 3107. Up to 510 conditions per place. [2023-08-25 19:06:09,812 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 48 selfloop transitions, 3 changer transitions 15/91 dead transitions. [2023-08-25 19:06:09,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 91 transitions, 623 flow [2023-08-25 19:06:09,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1452 transitions. [2023-08-25 19:06:09,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45517241379310347 [2023-08-25 19:06:09,815 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1452 transitions. [2023-08-25 19:06:09,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1452 transitions. [2023-08-25 19:06:09,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:09,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1452 transitions. [2023-08-25 19:06:09,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 290.4) internal successors, (1452), 5 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,822 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,822 INFO L175 Difference]: Start difference. First operand has 112 places, 70 transitions, 421 flow. Second operand 5 states and 1452 transitions. [2023-08-25 19:06:09,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 91 transitions, 623 flow [2023-08-25 19:06:09,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 91 transitions, 601 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-25 19:06:09,830 INFO L231 Difference]: Finished difference. Result has 109 places, 68 transitions, 399 flow [2023-08-25 19:06:09,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=109, PETRI_TRANSITIONS=68} [2023-08-25 19:06:09,830 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 19:06:09,830 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 68 transitions, 399 flow [2023-08-25 19:06:09,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:09,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:09,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:09,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 19:06:09,831 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:09,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash 601087770, now seen corresponding path program 1 times [2023-08-25 19:06:09,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:09,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355102949] [2023-08-25 19:06:09,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:09,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:10,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:10,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355102949] [2023-08-25 19:06:10,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355102949] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:10,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:10,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:10,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875886958] [2023-08-25 19:06:10,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:10,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:10,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:10,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 638 [2023-08-25 19:06:10,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 68 transitions, 399 flow. Second operand has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:10,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 638 [2023-08-25 19:06:10,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:10,355 INFO L124 PetriNetUnfolderBase]: 337/894 cut-off events. [2023-08-25 19:06:10,356 INFO L125 PetriNetUnfolderBase]: For 2071/2109 co-relation queries the response was YES. [2023-08-25 19:06:10,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 894 events. 337/894 cut-off events. For 2071/2109 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5392 event pairs, 97 based on Foata normal form. 9/877 useless extension candidates. Maximal degree in co-relation 2846. Up to 335 conditions per place. [2023-08-25 19:06:10,362 INFO L140 encePairwiseOnDemand]: 628/638 looper letters, 49 selfloop transitions, 10 changer transitions 9/93 dead transitions. [2023-08-25 19:06:10,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 93 transitions, 608 flow [2023-08-25 19:06:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1463 transitions. [2023-08-25 19:06:10,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4586206896551724 [2023-08-25 19:06:10,365 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1463 transitions. [2023-08-25 19:06:10,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1463 transitions. [2023-08-25 19:06:10,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:10,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1463 transitions. [2023-08-25 19:06:10,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 292.6) internal successors, (1463), 5 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,370 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,370 INFO L175 Difference]: Start difference. First operand has 109 places, 68 transitions, 399 flow. Second operand 5 states and 1463 transitions. [2023-08-25 19:06:10,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 93 transitions, 608 flow [2023-08-25 19:06:10,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 93 transitions, 600 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:10,376 INFO L231 Difference]: Finished difference. Result has 109 places, 67 transitions, 408 flow [2023-08-25 19:06:10,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=109, PETRI_TRANSITIONS=67} [2023-08-25 19:06:10,377 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 19:06:10,377 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 67 transitions, 408 flow [2023-08-25 19:06:10,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:10,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:10,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 19:06:10,378 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 19:06:10,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1087778904, now seen corresponding path program 2 times [2023-08-25 19:06:10,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:10,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775295194] [2023-08-25 19:06:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:10,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:06:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775295194] [2023-08-25 19:06:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775295194] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:10,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:10,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:10,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256040288] [2023-08-25 19:06:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:10,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:10,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:10,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:10,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:10,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 638 [2023-08-25 19:06:10,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 67 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:10,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 638 [2023-08-25 19:06:10,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:10,752 INFO L124 PetriNetUnfolderBase]: 325/867 cut-off events. [2023-08-25 19:06:10,753 INFO L125 PetriNetUnfolderBase]: For 2143/2181 co-relation queries the response was YES. [2023-08-25 19:06:10,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 867 events. 325/867 cut-off events. For 2143/2181 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5279 event pairs, 97 based on Foata normal form. 8/849 useless extension candidates. Maximal degree in co-relation 2859. Up to 331 conditions per place. [2023-08-25 19:06:10,757 INFO L140 encePairwiseOnDemand]: 628/638 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-25 19:06:10,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 85 transitions, 587 flow [2023-08-25 19:06:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1455 transitions. [2023-08-25 19:06:10,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4561128526645768 [2023-08-25 19:06:10,760 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1455 transitions. [2023-08-25 19:06:10,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1455 transitions. [2023-08-25 19:06:10,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:10,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1455 transitions. [2023-08-25 19:06:10,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,764 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,764 INFO L175 Difference]: Start difference. First operand has 109 places, 67 transitions, 408 flow. Second operand 5 states and 1455 transitions. [2023-08-25 19:06:10,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 85 transitions, 587 flow [2023-08-25 19:06:10,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 85 transitions, 566 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:10,769 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2023-08-25 19:06:10,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2023-08-25 19:06:10,770 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 19:06:10,770 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2023-08-25 19:06:10,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:10,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2023-08-25 19:06:10,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-25 19:06:10,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-25 19:06:10,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-25 19:06:10,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-25 19:06:10,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-08-25 19:06:10,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-25 19:06:10,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONASSERT (20 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-25 19:06:10,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-25 19:06:10,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-25 19:06:10,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-25 19:06:10,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-25 19:06:10,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-25 19:06:10,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 19:06:10,778 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:10,782 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:06:10,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:06:10,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:06:10 BasicIcfg [2023-08-25 19:06:10,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:06:10,785 INFO L158 Benchmark]: Toolchain (without parser) took 20199.73ms. Allocated memory was 394.3MB in the beginning and 889.2MB in the end (delta: 494.9MB). Free memory was 370.7MB in the beginning and 449.0MB in the end (delta: -78.4MB). Peak memory consumption was 417.6MB. Max. memory is 16.0GB. [2023-08-25 19:06:10,785 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 394.3MB. Free memory is still 371.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:06:10,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.68ms. Allocated memory is still 394.3MB. Free memory was 370.7MB in the beginning and 359.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 19:06:10,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.71ms. Allocated memory is still 394.3MB. Free memory was 359.1MB in the beginning and 356.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 19:06:10,786 INFO L158 Benchmark]: Boogie Preprocessor took 45.75ms. Allocated memory is still 394.3MB. Free memory was 356.5MB in the beginning and 355.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:06:10,786 INFO L158 Benchmark]: RCFGBuilder took 580.29ms. Allocated memory is still 394.3MB. Free memory was 355.0MB in the beginning and 331.3MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 19:06:10,786 INFO L158 Benchmark]: TraceAbstraction took 19213.14ms. Allocated memory was 394.3MB in the beginning and 889.2MB in the end (delta: 494.9MB). Free memory was 330.8MB in the beginning and 449.0MB in the end (delta: -118.2MB). Peak memory consumption was 377.7MB. Max. memory is 16.0GB. [2023-08-25 19:06:10,788 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 394.3MB. Free memory is still 371.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 290.68ms. Allocated memory is still 394.3MB. Free memory was 370.7MB in the beginning and 359.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.71ms. Allocated memory is still 394.3MB. Free memory was 359.1MB in the beginning and 356.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.75ms. Allocated memory is still 394.3MB. Free memory was 356.5MB in the beginning and 355.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 580.29ms. Allocated memory is still 394.3MB. Free memory was 355.0MB in the beginning and 331.3MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 19213.14ms. Allocated memory was 394.3MB in the beginning and 889.2MB in the end (delta: 494.9MB). Free memory was 330.8MB in the beginning and 449.0MB in the end (delta: -118.2MB). Peak memory consumption was 377.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 287 PlacesBefore, 81 PlacesAfterwards, 298 TransitionsBefore, 84 TransitionsAfterwards, 15476 CoEnabledTransitionPairs, 8 FixpointIterations, 152 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 40 ConcurrentYvCompositions, 8 ChoiceCompositions, 329 TotalNumberOfCompositions, 56101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30418, independent: 29481, independent conditional: 0, independent unconditional: 29481, dependent: 937, dependent conditional: 0, dependent unconditional: 937, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9409, independent: 9317, independent conditional: 0, independent unconditional: 9317, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30418, independent: 20164, independent conditional: 0, independent unconditional: 20164, dependent: 845, dependent conditional: 0, dependent unconditional: 845, unknown: 9409, unknown conditional: 0, unknown unconditional: 9409] , Statistics on independence cache: Total cache size (in pairs): 986, Positive cache size: 933, Positive conditional cache size: 0, Positive unconditional cache size: 933, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 430 locations, 53 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.0s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1074 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1074 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4251 IncrementalHoareTripleChecker+Invalid, 4349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 24 mSDtfsCounter, 4251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=654occurred in iteration=14, InterpolantAutomatonStates: 151, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 2824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:06:10,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...