/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-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:02:16,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:02:16,998 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 19:02:17,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:02:17,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:02:17,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:02:17,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:02:17,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:02:17,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:02:17,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:02:17,038 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:02:17,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:02:17,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:02:17,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:02:17,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:02:17,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:02:17,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:02:17,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:02:17,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:02:17,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:02:17,040 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:02:17,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:02:17,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:02:17,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:02:17,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:02:17,042 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:02:17,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:02:17,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:02:17,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:02:17,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:02:17,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:02:17,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:02:17,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:02:17,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:02:17,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:02:17,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:02:17,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:02:17,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:02:17,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:02:17,288 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:02:17,290 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:02:17,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-25 19:02:18,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:02:18,550 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:02:18,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-25 19:02:18,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c2e14380/160ce6e02dc14c4db72e4bde1e6d5ca9/FLAG9fb21a5d3 [2023-08-25 19:02:18,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c2e14380/160ce6e02dc14c4db72e4bde1e6d5ca9 [2023-08-25 19:02:18,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:02:18,567 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:02:18,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:02:18,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:02:18,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:02:18,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340a321f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18, skipping insertion in model container [2023-08-25 19:02:18,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,584 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:02:18,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:02:18,695 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:02:18,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:02:18,721 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:02:18,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18 WrapperNode [2023-08-25 19:02:18,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:02:18,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:02:18,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:02:18,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:02:18,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,750 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 342 [2023-08-25 19:02:18,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:02:18,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:02:18,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:02:18,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:02:18,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:02:18,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:02:18,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:02:18,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:02:18,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (1/1) ... [2023-08-25 19:02:18,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:02:18,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:02:18,823 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 19:02:18,842 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 19:02:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:02:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:02:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:02:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:02:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:02:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:02:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:02:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:02:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:02:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 19:02:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:02:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:02:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:02:18,854 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 19:02:18,959 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:02:18,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:02:19,315 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:02:19,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:02:19,326 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 19:02:19,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:02:19 BoogieIcfgContainer [2023-08-25 19:02:19,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:02:19,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:02:19,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:02:19,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:02:19,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:02:18" (1/3) ... [2023-08-25 19:02:19,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2824c680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:02:19, skipping insertion in model container [2023-08-25 19:02:19,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:02:18" (2/3) ... [2023-08-25 19:02:19,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2824c680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:02:19, skipping insertion in model container [2023-08-25 19:02:19,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:02:19" (3/3) ... [2023-08-25 19:02:19,335 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-08-25 19:02:19,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:02:19,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-08-25 19:02:19,350 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:02:19,491 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 19:02:19,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 396 places, 415 transitions, 846 flow [2023-08-25 19:02:19,653 INFO L124 PetriNetUnfolderBase]: 26/413 cut-off events. [2023-08-25 19:02:19,653 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:02:19,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 413 events. 26/413 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 675 event pairs, 0 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 237. Up to 2 conditions per place. [2023-08-25 19:02:19,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 396 places, 415 transitions, 846 flow [2023-08-25 19:02:19,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 385 places, 404 transitions, 820 flow [2023-08-25 19:02:19,673 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:02:19,686 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 385 places, 404 transitions, 820 flow [2023-08-25 19:02:19,689 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 385 places, 404 transitions, 820 flow [2023-08-25 19:02:19,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 385 places, 404 transitions, 820 flow [2023-08-25 19:02:19,734 INFO L124 PetriNetUnfolderBase]: 26/404 cut-off events. [2023-08-25 19:02:19,735 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:02:19,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 404 events. 26/404 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 676 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 237. Up to 2 conditions per place. [2023-08-25 19:02:19,746 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2023-08-25 19:02:27,586 INFO L134 LiptonReduction]: Checked pairs total: 79366 [2023-08-25 19:02:27,586 INFO L136 LiptonReduction]: Total number of compositions: 438 [2023-08-25 19:02:27,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:02:27,608 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;@39717874, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:02:27,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-08-25 19:02:27,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:02:27,612 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-25 19:02:27,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:02:27,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:27,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-25 19:02:27,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:27,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash 50636, now seen corresponding path program 1 times [2023-08-25 19:02:27,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611023480] [2023-08-25 19:02:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:27,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:27,768 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 19:02:27,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:27,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611023480] [2023-08-25 19:02:27,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611023480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:27,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:27,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 19:02:27,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885595012] [2023-08-25 19:02:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:27,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:02:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:27,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:02:27,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:02:27,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 853 [2023-08-25 19:02:27,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 99 transitions, 210 flow. Second operand has 2 states, 2 states have (on average 394.0) internal successors, (788), 2 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:27,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:27,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 853 [2023-08-25 19:02:27,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:27,939 INFO L124 PetriNetUnfolderBase]: 175/766 cut-off events. [2023-08-25 19:02:27,940 INFO L125 PetriNetUnfolderBase]: For 58/85 co-relation queries the response was YES. [2023-08-25 19:02:27,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 766 events. 175/766 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5354 event pairs, 141 based on Foata normal form. 37/667 useless extension candidates. Maximal degree in co-relation 948. Up to 305 conditions per place. [2023-08-25 19:02:27,945 INFO L140 encePairwiseOnDemand]: 830/853 looper letters, 27 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2023-08-25 19:02:27,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 218 flow [2023-08-25 19:02:27,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:02:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:02:27,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 836 transitions. [2023-08-25 19:02:27,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4900351699882767 [2023-08-25 19:02:27,962 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 836 transitions. [2023-08-25 19:02:27,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 836 transitions. [2023-08-25 19:02:27,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:27,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 836 transitions. [2023-08-25 19:02:27,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 418.0) internal successors, (836), 2 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:27,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 853.0) internal successors, (2559), 3 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:27,979 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 853.0) internal successors, (2559), 3 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:27,981 INFO L175 Difference]: Start difference. First operand has 101 places, 99 transitions, 210 flow. Second operand 2 states and 836 transitions. [2023-08-25 19:02:27,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 218 flow [2023-08-25 19:02:27,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:02:27,985 INFO L231 Difference]: Finished difference. Result has 76 places, 76 transitions, 156 flow [2023-08-25 19:02:27,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=76, PETRI_TRANSITIONS=76} [2023-08-25 19:02:27,989 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -25 predicate places. [2023-08-25 19:02:27,989 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 76 transitions, 156 flow [2023-08-25 19:02:27,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 394.0) internal successors, (788), 2 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:27,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:27,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:02:27,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:02:27,991 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:27,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:27,999 INFO L85 PathProgramCache]: Analyzing trace with hash -379715343, now seen corresponding path program 1 times [2023-08-25 19:02:28,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:28,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169137645] [2023-08-25 19:02:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:28,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:28,162 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 19:02:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169137645] [2023-08-25 19:02:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169137645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:02:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17066024] [2023-08-25 19:02:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:28,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:02:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:02:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:02:28,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 853 [2023-08-25 19:02:28,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 76 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 358.3333333333333) internal successors, (1075), 3 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:28,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 853 [2023-08-25 19:02:28,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:28,248 INFO L124 PetriNetUnfolderBase]: 175/768 cut-off events. [2023-08-25 19:02:28,248 INFO L125 PetriNetUnfolderBase]: For 9/36 co-relation queries the response was YES. [2023-08-25 19:02:28,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 768 events. 175/768 cut-off events. For 9/36 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5355 event pairs, 141 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 1081. Up to 305 conditions per place. [2023-08-25 19:02:28,251 INFO L140 encePairwiseOnDemand]: 848/853 looper letters, 25 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2023-08-25 19:02:28,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 218 flow [2023-08-25 19:02:28,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:02:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:02:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1102 transitions. [2023-08-25 19:02:28,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306369675654553 [2023-08-25 19:02:28,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1102 transitions. [2023-08-25 19:02:28,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1102 transitions. [2023-08-25 19:02:28,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:28,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1102 transitions. [2023-08-25 19:02:28,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,261 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 156 flow. Second operand 3 states and 1102 transitions. [2023-08-25 19:02:28,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 218 flow [2023-08-25 19:02:28,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 78 transitions, 218 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:02:28,263 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 178 flow [2023-08-25 19:02:28,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2023-08-25 19:02:28,263 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -22 predicate places. [2023-08-25 19:02:28,264 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 178 flow [2023-08-25 19:02:28,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.3333333333333) internal successors, (1075), 3 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:28,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:28,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:02:28,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:28,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:28,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1721687936, now seen corresponding path program 1 times [2023-08-25 19:02:28,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:28,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971540169] [2023-08-25 19:02:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:28,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 19:02:28,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:28,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971540169] [2023-08-25 19:02:28,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971540169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:28,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:28,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:02:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231471997] [2023-08-25 19:02:28,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:28,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:02:28,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:28,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:02:28,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:02:28,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 853 [2023-08-25 19:02:28,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:28,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 853 [2023-08-25 19:02:28,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:28,416 INFO L124 PetriNetUnfolderBase]: 224/799 cut-off events. [2023-08-25 19:02:28,417 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 19:02:28,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 799 events. 224/799 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5251 event pairs, 74 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 1205. Up to 372 conditions per place. [2023-08-25 19:02:28,419 INFO L140 encePairwiseOnDemand]: 849/853 looper letters, 36 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2023-08-25 19:02:28,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 265 flow [2023-08-25 19:02:28,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:02:28,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:02:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1190 transitions. [2023-08-25 19:02:28,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650254005470887 [2023-08-25 19:02:28,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1190 transitions. [2023-08-25 19:02:28,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1190 transitions. [2023-08-25 19:02:28,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:28,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1190 transitions. [2023-08-25 19:02:28,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,428 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 178 flow. Second operand 3 states and 1190 transitions. [2023-08-25 19:02:28,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 265 flow [2023-08-25 19:02:28,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:02:28,431 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 184 flow [2023-08-25 19:02:28,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2023-08-25 19:02:28,432 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -22 predicate places. [2023-08-25 19:02:28,432 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 184 flow [2023-08-25 19:02:28,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:28,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:28,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:02:28,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:28,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash -964228801, now seen corresponding path program 1 times [2023-08-25 19:02:28,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:28,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227636974] [2023-08-25 19:02:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:28,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 19:02:28,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:28,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227636974] [2023-08-25 19:02:28,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227636974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:28,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:28,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:02:28,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030690255] [2023-08-25 19:02:28,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:28,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:02:28,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:28,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:02:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:02:28,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 853 [2023-08-25 19:02:28,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:28,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 853 [2023-08-25 19:02:28,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:28,574 INFO L124 PetriNetUnfolderBase]: 204/712 cut-off events. [2023-08-25 19:02:28,574 INFO L125 PetriNetUnfolderBase]: For 10/25 co-relation queries the response was YES. [2023-08-25 19:02:28,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 712 events. 204/712 cut-off events. For 10/25 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4339 event pairs, 67 based on Foata normal form. 1/589 useless extension candidates. Maximal degree in co-relation 1104. Up to 339 conditions per place. [2023-08-25 19:02:28,577 INFO L140 encePairwiseOnDemand]: 849/853 looper letters, 34 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2023-08-25 19:02:28,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 82 transitions, 265 flow [2023-08-25 19:02:28,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:02:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:02:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1188 transitions. [2023-08-25 19:02:28,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642438452520516 [2023-08-25 19:02:28,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1188 transitions. [2023-08-25 19:02:28,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1188 transitions. [2023-08-25 19:02:28,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:28,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1188 transitions. [2023-08-25 19:02:28,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,586 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 184 flow. Second operand 3 states and 1188 transitions. [2023-08-25 19:02:28,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 82 transitions, 265 flow [2023-08-25 19:02:28,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 82 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:02:28,589 INFO L231 Difference]: Finished difference. Result has 80 places, 78 transitions, 194 flow [2023-08-25 19:02:28,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=80, PETRI_TRANSITIONS=78} [2023-08-25 19:02:28,590 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -21 predicate places. [2023-08-25 19:02:28,590 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 78 transitions, 194 flow [2023-08-25 19:02:28,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:28,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:28,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:02:28,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:28,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash -461470450, now seen corresponding path program 1 times [2023-08-25 19:02:28,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:28,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871613629] [2023-08-25 19:02:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:28,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 19:02:28,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:28,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871613629] [2023-08-25 19:02:28,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871613629] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:28,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:28,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:02:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503798074] [2023-08-25 19:02:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:28,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:02:28,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:02:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:02:28,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 853 [2023-08-25 19:02:28,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 78 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:28,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 853 [2023-08-25 19:02:28,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:28,764 INFO L124 PetriNetUnfolderBase]: 381/1365 cut-off events. [2023-08-25 19:02:28,764 INFO L125 PetriNetUnfolderBase]: For 47/78 co-relation queries the response was YES. [2023-08-25 19:02:28,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2103 conditions, 1365 events. 381/1365 cut-off events. For 47/78 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9819 event pairs, 100 based on Foata normal form. 5/1153 useless extension candidates. Maximal degree in co-relation 2097. Up to 433 conditions per place. [2023-08-25 19:02:28,769 INFO L140 encePairwiseOnDemand]: 849/853 looper letters, 50 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-25 19:02:28,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 95 transitions, 337 flow [2023-08-25 19:02:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:02:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:02:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1203 transitions. [2023-08-25 19:02:28,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47010550996483 [2023-08-25 19:02:28,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1203 transitions. [2023-08-25 19:02:28,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1203 transitions. [2023-08-25 19:02:28,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:28,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1203 transitions. [2023-08-25 19:02:28,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 401.0) internal successors, (1203), 3 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,779 INFO L175 Difference]: Start difference. First operand has 80 places, 78 transitions, 194 flow. Second operand 3 states and 1203 transitions. [2023-08-25 19:02:28,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 95 transitions, 337 flow [2023-08-25 19:02:28,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 95 transitions, 337 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:02:28,780 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 204 flow [2023-08-25 19:02:28,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2023-08-25 19:02:28,781 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -20 predicate places. [2023-08-25 19:02:28,781 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 204 flow [2023-08-25 19:02:28,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:28,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:28,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:28,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:02:28,782 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:28,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:28,782 INFO L85 PathProgramCache]: Analyzing trace with hash -294849736, now seen corresponding path program 1 times [2023-08-25 19:02:28,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:28,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293392896] [2023-08-25 19:02:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:02:28,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293392896] [2023-08-25 19:02:28,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293392896] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:02:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104064142] [2023-08-25 19:02:28,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:28,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:28,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:02:28,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:02:28,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 19:02:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:28,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 19:02:28,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:02:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:02:29,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:02:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:02:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104064142] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:02:29,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:02:29,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-25 19:02:29,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744163514] [2023-08-25 19:02:29,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:02:29,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:02:29,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:29,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:02:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:02:29,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 853 [2023-08-25 19:02:29,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 204 flow. Second operand has 8 states, 8 states have (on average 358.875) internal successors, (2871), 8 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:29,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:29,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 853 [2023-08-25 19:02:29,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:29,178 INFO L124 PetriNetUnfolderBase]: 306/1174 cut-off events. [2023-08-25 19:02:29,178 INFO L125 PetriNetUnfolderBase]: For 60/85 co-relation queries the response was YES. [2023-08-25 19:02:29,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 1174 events. 306/1174 cut-off events. For 60/85 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8132 event pairs, 208 based on Foata normal form. 0/1009 useless extension candidates. Maximal degree in co-relation 1866. Up to 522 conditions per place. [2023-08-25 19:02:29,183 INFO L140 encePairwiseOnDemand]: 848/853 looper letters, 27 selfloop transitions, 10 changer transitions 0/84 dead transitions. [2023-08-25 19:02:29,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 84 transitions, 302 flow [2023-08-25 19:02:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2183 transitions. [2023-08-25 19:02:29,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42653380226651033 [2023-08-25 19:02:29,187 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2183 transitions. [2023-08-25 19:02:29,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2183 transitions. [2023-08-25 19:02:29,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:29,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2183 transitions. [2023-08-25 19:02:29,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 363.8333333333333) internal successors, (2183), 6 states have internal predecessors, (2183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:29,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:29,198 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:29,198 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 204 flow. Second operand 6 states and 2183 transitions. [2023-08-25 19:02:29,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 84 transitions, 302 flow [2023-08-25 19:02:29,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 84 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:02:29,199 INFO L231 Difference]: Finished difference. Result has 89 places, 84 transitions, 270 flow [2023-08-25 19:02:29,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=89, PETRI_TRANSITIONS=84} [2023-08-25 19:02:29,200 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -12 predicate places. [2023-08-25 19:02:29,200 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 270 flow [2023-08-25 19:02:29,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 358.875) internal successors, (2871), 8 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:29,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:29,201 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:29,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 19:02:29,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 19:02:29,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:29,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1447834791, now seen corresponding path program 2 times [2023-08-25 19:02:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:29,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599135897] [2023-08-25 19:02:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 19:02:29,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599135897] [2023-08-25 19:02:29,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599135897] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:02:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532705828] [2023-08-25 19:02:29,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:02:29,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:29,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:02:29,554 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:02:29,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 19:02:29,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 19:02:29,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:02:29,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 19:02:29,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:02:29,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 19:02:29,714 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 19:02:29,732 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:02:29,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 19:02:29,754 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:02:29,755 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 19:02:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:02:29,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 19:02:29,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532705828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:29,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 19:02:29,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-25 19:02:29,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093150245] [2023-08-25 19:02:29,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:29,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:02:29,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:29,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:02:29,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-25 19:02:29,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 853 [2023-08-25 19:02:29,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 270 flow. Second operand has 7 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:29,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:29,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 853 [2023-08-25 19:02:29,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:30,571 INFO L124 PetriNetUnfolderBase]: 4746/7636 cut-off events. [2023-08-25 19:02:30,571 INFO L125 PetriNetUnfolderBase]: For 371/371 co-relation queries the response was YES. [2023-08-25 19:02:30,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15727 conditions, 7636 events. 4746/7636 cut-off events. For 371/371 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 47256 event pairs, 320 based on Foata normal form. 0/6670 useless extension candidates. Maximal degree in co-relation 15716. Up to 2973 conditions per place. [2023-08-25 19:02:30,598 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 210 selfloop transitions, 5 changer transitions 0/231 dead transitions. [2023-08-25 19:02:30,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 231 transitions, 1034 flow [2023-08-25 19:02:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:02:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:02:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2571 transitions. [2023-08-25 19:02:30,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4305811421872383 [2023-08-25 19:02:30,603 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2571 transitions. [2023-08-25 19:02:30,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2571 transitions. [2023-08-25 19:02:30,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:30,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2571 transitions. [2023-08-25 19:02:30,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 367.2857142857143) internal successors, (2571), 7 states have internal predecessors, (2571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:30,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 853.0) internal successors, (6824), 8 states have internal predecessors, (6824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:30,612 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 853.0) internal successors, (6824), 8 states have internal predecessors, (6824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:30,613 INFO L175 Difference]: Start difference. First operand has 89 places, 84 transitions, 270 flow. Second operand 7 states and 2571 transitions. [2023-08-25 19:02:30,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 231 transitions, 1034 flow [2023-08-25 19:02:30,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 231 transitions, 1018 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 19:02:30,616 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 262 flow [2023-08-25 19:02:30,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=262, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2023-08-25 19:02:30,616 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -8 predicate places. [2023-08-25 19:02:30,616 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 262 flow [2023-08-25 19:02:30,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:30,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:30,617 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:30,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 19:02:30,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-25 19:02:30,822 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:30,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:30,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1480080747, now seen corresponding path program 1 times [2023-08-25 19:02:30,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:30,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129715136] [2023-08-25 19:02:30,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:30,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 19:02:30,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:30,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129715136] [2023-08-25 19:02:30,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129715136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:30,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:30,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:02:30,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114117374] [2023-08-25 19:02:30,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:30,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:02:30,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:30,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:02:30,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:02:30,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 853 [2023-08-25 19:02:30,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:30,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:30,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 853 [2023-08-25 19:02:30,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:30,990 INFO L124 PetriNetUnfolderBase]: 382/1354 cut-off events. [2023-08-25 19:02:30,990 INFO L125 PetriNetUnfolderBase]: For 164/189 co-relation queries the response was YES. [2023-08-25 19:02:30,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 1354 events. 382/1354 cut-off events. For 164/189 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9531 event pairs, 89 based on Foata normal form. 0/1196 useless extension candidates. Maximal degree in co-relation 2337. Up to 446 conditions per place. [2023-08-25 19:02:30,995 INFO L140 encePairwiseOnDemand]: 849/853 looper letters, 55 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2023-08-25 19:02:30,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 99 transitions, 418 flow [2023-08-25 19:02:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:02:30,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:02:30,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1201 transitions. [2023-08-25 19:02:30,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4693239546697929 [2023-08-25 19:02:30,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1201 transitions. [2023-08-25 19:02:30,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1201 transitions. [2023-08-25 19:02:30,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:30,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1201 transitions. [2023-08-25 19:02:31,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 853.0) internal successors, (3412), 4 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,003 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 262 flow. Second operand 3 states and 1201 transitions. [2023-08-25 19:02:31,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 99 transitions, 418 flow [2023-08-25 19:02:31,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 99 transitions, 407 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:02:31,006 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 263 flow [2023-08-25 19:02:31,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2023-08-25 19:02:31,009 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -12 predicate places. [2023-08-25 19:02:31,009 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 263 flow [2023-08-25 19:02:31,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:31,009 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:31,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:02:31,009 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:31,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash -929555000, now seen corresponding path program 1 times [2023-08-25 19:02:31,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:31,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017629959] [2023-08-25 19:02:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:31,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 19:02:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017629959] [2023-08-25 19:02:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017629959] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:02:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541295863] [2023-08-25 19:02:31,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:31,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:31,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:02:31,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:02:31,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 19:02:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:31,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 19:02:31,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:02:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 19:02:31,297 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:02:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 19:02:31,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541295863] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:02:31,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:02:31,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-25 19:02:31,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782551539] [2023-08-25 19:02:31,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:02:31,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 19:02:31,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:31,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 19:02:31,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-25 19:02:31,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 853 [2023-08-25 19:02:31,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 263 flow. Second operand has 17 states, 17 states have (on average 358.47058823529414) internal successors, (6094), 17 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:31,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 853 [2023-08-25 19:02:31,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:31,532 INFO L124 PetriNetUnfolderBase]: 330/1247 cut-off events. [2023-08-25 19:02:31,532 INFO L125 PetriNetUnfolderBase]: For 81/108 co-relation queries the response was YES. [2023-08-25 19:02:31,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 1247 events. 330/1247 cut-off events. For 81/108 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8606 event pairs, 219 based on Foata normal form. 1/1125 useless extension candidates. Maximal degree in co-relation 2086. Up to 550 conditions per place. [2023-08-25 19:02:31,537 INFO L140 encePairwiseOnDemand]: 848/853 looper letters, 28 selfloop transitions, 12 changer transitions 0/85 dead transitions. [2023-08-25 19:02:31,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 85 transitions, 355 flow [2023-08-25 19:02:31,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:02:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:02:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2538 transitions. [2023-08-25 19:02:31,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4250544297437615 [2023-08-25 19:02:31,541 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2538 transitions. [2023-08-25 19:02:31,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2538 transitions. [2023-08-25 19:02:31,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:31,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2538 transitions. [2023-08-25 19:02:31,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 362.57142857142856) internal successors, (2538), 7 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 853.0) internal successors, (6824), 8 states have internal predecessors, (6824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,550 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 853.0) internal successors, (6824), 8 states have internal predecessors, (6824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,550 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 263 flow. Second operand 7 states and 2538 transitions. [2023-08-25 19:02:31,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 85 transitions, 355 flow [2023-08-25 19:02:31,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 85 transitions, 355 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:02:31,552 INFO L231 Difference]: Finished difference. Result has 96 places, 85 transitions, 309 flow [2023-08-25 19:02:31,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=309, PETRI_PLACES=96, PETRI_TRANSITIONS=85} [2023-08-25 19:02:31,552 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -5 predicate places. [2023-08-25 19:02:31,552 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 85 transitions, 309 flow [2023-08-25 19:02:31,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 358.47058823529414) internal successors, (6094), 17 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:31,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:31,554 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:31,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 19:02:31,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:31,758 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:31,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1887975191, now seen corresponding path program 2 times [2023-08-25 19:02:31,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:31,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959909262] [2023-08-25 19:02:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:31,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:32,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959909262] [2023-08-25 19:02:32,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959909262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:32,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:32,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:32,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3774996] [2023-08-25 19:02:32,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:32,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:02:32,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:32,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:02:32,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:02:32,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 853 [2023-08-25 19:02:32,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 85 transitions, 309 flow. Second operand has 6 states, 6 states have (on average 337.6666666666667) internal successors, (2026), 6 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:32,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:32,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 853 [2023-08-25 19:02:32,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:32,968 INFO L124 PetriNetUnfolderBase]: 5367/8824 cut-off events. [2023-08-25 19:02:32,969 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2023-08-25 19:02:32,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18840 conditions, 8824 events. 5367/8824 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 52729 event pairs, 2059 based on Foata normal form. 0/8056 useless extension candidates. Maximal degree in co-relation 18826. Up to 4195 conditions per place. [2023-08-25 19:02:33,008 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 170 selfloop transitions, 5 changer transitions 0/188 dead transitions. [2023-08-25 19:02:33,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 188 transitions, 893 flow [2023-08-25 19:02:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:33,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2169 transitions. [2023-08-25 19:02:33,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42379835873388044 [2023-08-25 19:02:33,012 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2169 transitions. [2023-08-25 19:02:33,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2169 transitions. [2023-08-25 19:02:33,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:33,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2169 transitions. [2023-08-25 19:02:33,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.5) internal successors, (2169), 6 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:33,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:33,021 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:33,021 INFO L175 Difference]: Start difference. First operand has 96 places, 85 transitions, 309 flow. Second operand 6 states and 2169 transitions. [2023-08-25 19:02:33,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 188 transitions, 893 flow [2023-08-25 19:02:33,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 188 transitions, 869 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-25 19:02:33,024 INFO L231 Difference]: Finished difference. Result has 96 places, 84 transitions, 293 flow [2023-08-25 19:02:33,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=293, PETRI_PLACES=96, PETRI_TRANSITIONS=84} [2023-08-25 19:02:33,024 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -5 predicate places. [2023-08-25 19:02:33,025 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 84 transitions, 293 flow [2023-08-25 19:02:33,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 337.6666666666667) internal successors, (2026), 6 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:33,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:33,025 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:02:33,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:02:33,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:33,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:33,026 INFO L85 PathProgramCache]: Analyzing trace with hash -938842548, now seen corresponding path program 1 times [2023-08-25 19:02:33,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:33,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017811354] [2023-08-25 19:02:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:33,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:33,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017811354] [2023-08-25 19:02:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017811354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:33,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979139426] [2023-08-25 19:02:33,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:33,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:02:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:02:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:02:33,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 853 [2023-08-25 19:02:33,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 293 flow. Second operand has 6 states, 6 states have (on average 337.8333333333333) internal successors, (2027), 6 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:33,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:33,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 853 [2023-08-25 19:02:33,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:34,258 INFO L124 PetriNetUnfolderBase]: 4816/7993 cut-off events. [2023-08-25 19:02:34,259 INFO L125 PetriNetUnfolderBase]: For 934/934 co-relation queries the response was YES. [2023-08-25 19:02:34,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17731 conditions, 7993 events. 4816/7993 cut-off events. For 934/934 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 47574 event pairs, 1866 based on Foata normal form. 0/7523 useless extension candidates. Maximal degree in co-relation 17716. Up to 3797 conditions per place. [2023-08-25 19:02:34,293 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 184 selfloop transitions, 5 changer transitions 0/203 dead transitions. [2023-08-25 19:02:34,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 203 transitions, 985 flow [2023-08-25 19:02:34,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2183 transitions. [2023-08-25 19:02:34,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42653380226651033 [2023-08-25 19:02:34,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2183 transitions. [2023-08-25 19:02:34,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2183 transitions. [2023-08-25 19:02:34,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:34,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2183 transitions. [2023-08-25 19:02:34,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 363.8333333333333) internal successors, (2183), 6 states have internal predecessors, (2183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:34,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:34,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:34,308 INFO L175 Difference]: Start difference. First operand has 96 places, 84 transitions, 293 flow. Second operand 6 states and 2183 transitions. [2023-08-25 19:02:34,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 203 transitions, 985 flow [2023-08-25 19:02:34,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 203 transitions, 935 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:02:34,312 INFO L231 Difference]: Finished difference. Result has 95 places, 83 transitions, 291 flow [2023-08-25 19:02:34,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2023-08-25 19:02:34,312 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -6 predicate places. [2023-08-25 19:02:34,313 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 291 flow [2023-08-25 19:02:34,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 337.8333333333333) internal successors, (2027), 6 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:34,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:34,314 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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 19:02:34,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:02:34,314 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:34,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:34,314 INFO L85 PathProgramCache]: Analyzing trace with hash -567550206, now seen corresponding path program 1 times [2023-08-25 19:02:34,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:34,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524219126] [2023-08-25 19:02:34,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:34,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:34,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:34,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524219126] [2023-08-25 19:02:34,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524219126] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:34,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:34,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:34,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103162460] [2023-08-25 19:02:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:34,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:02:34,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:02:34,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:02:34,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 853 [2023-08-25 19:02:34,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 342.8333333333333) internal successors, (2057), 6 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:34,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:34,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 853 [2023-08-25 19:02:34,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:35,354 INFO L124 PetriNetUnfolderBase]: 4581/7649 cut-off events. [2023-08-25 19:02:35,354 INFO L125 PetriNetUnfolderBase]: For 700/700 co-relation queries the response was YES. [2023-08-25 19:02:35,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16981 conditions, 7649 events. 4581/7649 cut-off events. For 700/700 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 45342 event pairs, 3638 based on Foata normal form. 0/7207 useless extension candidates. Maximal degree in co-relation 16966. Up to 6817 conditions per place. [2023-08-25 19:02:35,408 INFO L140 encePairwiseOnDemand]: 848/853 looper letters, 131 selfloop transitions, 4 changer transitions 4/154 dead transitions. [2023-08-25 19:02:35,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 154 transitions, 771 flow [2023-08-25 19:02:35,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:35,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:35,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2157 transitions. [2023-08-25 19:02:35,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42145369284876905 [2023-08-25 19:02:35,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2157 transitions. [2023-08-25 19:02:35,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2157 transitions. [2023-08-25 19:02:35,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:35,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2157 transitions. [2023-08-25 19:02:35,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 359.5) internal successors, (2157), 6 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:35,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:35,420 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:35,420 INFO L175 Difference]: Start difference. First operand has 95 places, 83 transitions, 291 flow. Second operand 6 states and 2157 transitions. [2023-08-25 19:02:35,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 154 transitions, 771 flow [2023-08-25 19:02:35,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 154 transitions, 721 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:02:35,424 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 287 flow [2023-08-25 19:02:35,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=287, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2023-08-25 19:02:35,424 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-25 19:02:35,425 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 287 flow [2023-08-25 19:02:35,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.8333333333333) internal successors, (2057), 6 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:35,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:35,425 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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 19:02:35,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:02:35,425 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:35,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1977936706, now seen corresponding path program 1 times [2023-08-25 19:02:35,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:35,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446240377] [2023-08-25 19:02:35,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:35,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:35,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:35,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446240377] [2023-08-25 19:02:35,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446240377] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:35,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:35,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:35,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814410606] [2023-08-25 19:02:35,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:35,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:02:35,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:35,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:02:35,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:02:35,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 853 [2023-08-25 19:02:35,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 287 flow. Second operand has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:35,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:35,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 853 [2023-08-25 19:02:35,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:36,554 INFO L124 PetriNetUnfolderBase]: 4860/7987 cut-off events. [2023-08-25 19:02:36,554 INFO L125 PetriNetUnfolderBase]: For 520/520 co-relation queries the response was YES. [2023-08-25 19:02:36,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17215 conditions, 7987 events. 4860/7987 cut-off events. For 520/520 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 46525 event pairs, 3291 based on Foata normal form. 0/7535 useless extension candidates. Maximal degree in co-relation 17200. Up to 6313 conditions per place. [2023-08-25 19:02:36,577 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 155 selfloop transitions, 5 changer transitions 4/177 dead transitions. [2023-08-25 19:02:36,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 177 transitions, 821 flow [2023-08-25 19:02:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2162 transitions. [2023-08-25 19:02:36,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42243063696756544 [2023-08-25 19:02:36,581 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2162 transitions. [2023-08-25 19:02:36,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2162 transitions. [2023-08-25 19:02:36,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:36,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2162 transitions. [2023-08-25 19:02:36,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 360.3333333333333) internal successors, (2162), 6 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:36,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:36,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:36,590 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 287 flow. Second operand 6 states and 2162 transitions. [2023-08-25 19:02:36,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 177 transitions, 821 flow [2023-08-25 19:02:36,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 177 transitions, 814 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:02:36,593 INFO L231 Difference]: Finished difference. Result has 94 places, 81 transitions, 288 flow [2023-08-25 19:02:36,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=94, PETRI_TRANSITIONS=81} [2023-08-25 19:02:36,594 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-25 19:02:36,594 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 81 transitions, 288 flow [2023-08-25 19:02:36,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:36,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:36,595 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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 19:02:36,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:02:36,595 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:36,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:36,595 INFO L85 PathProgramCache]: Analyzing trace with hash 965575088, now seen corresponding path program 1 times [2023-08-25 19:02:36,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:36,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066818698] [2023-08-25 19:02:36,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:36,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:36,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:36,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066818698] [2023-08-25 19:02:36,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066818698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:36,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:36,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:36,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493468022] [2023-08-25 19:02:36,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:36,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:02:36,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:36,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:02:36,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:02:36,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 853 [2023-08-25 19:02:36,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 81 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:36,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:36,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 853 [2023-08-25 19:02:36,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:37,657 INFO L124 PetriNetUnfolderBase]: 4470/7447 cut-off events. [2023-08-25 19:02:37,657 INFO L125 PetriNetUnfolderBase]: For 675/675 co-relation queries the response was YES. [2023-08-25 19:02:37,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16447 conditions, 7447 events. 4470/7447 cut-off events. For 675/675 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 43680 event pairs, 2989 based on Foata normal form. 0/7114 useless extension candidates. Maximal degree in co-relation 16432. Up to 5769 conditions per place. [2023-08-25 19:02:37,687 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 169 selfloop transitions, 5 changer transitions 0/188 dead transitions. [2023-08-25 19:02:37,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 188 transitions, 918 flow [2023-08-25 19:02:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:37,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2172 transitions. [2023-08-25 19:02:37,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4243845252051583 [2023-08-25 19:02:37,692 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2172 transitions. [2023-08-25 19:02:37,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2172 transitions. [2023-08-25 19:02:37,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:37,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2172 transitions. [2023-08-25 19:02:37,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 362.0) internal successors, (2172), 6 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:37,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:37,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:37,699 INFO L175 Difference]: Start difference. First operand has 94 places, 81 transitions, 288 flow. Second operand 6 states and 2172 transitions. [2023-08-25 19:02:37,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 188 transitions, 918 flow [2023-08-25 19:02:37,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 188 transitions, 868 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:02:37,705 INFO L231 Difference]: Finished difference. Result has 93 places, 80 transitions, 286 flow [2023-08-25 19:02:37,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2023-08-25 19:02:37,706 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -8 predicate places. [2023-08-25 19:02:37,706 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 286 flow [2023-08-25 19:02:37,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:37,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:37,707 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 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 19:02:37,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:02:37,707 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:37,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:37,707 INFO L85 PathProgramCache]: Analyzing trace with hash 996677119, now seen corresponding path program 1 times [2023-08-25 19:02:37,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:37,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899767487] [2023-08-25 19:02:37,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:37,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:38,022 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:38,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:38,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899767487] [2023-08-25 19:02:38,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899767487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:38,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:38,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:38,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676079660] [2023-08-25 19:02:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:38,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:02:38,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:38,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:02:38,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:02:38,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 853 [2023-08-25 19:02:38,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:38,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 853 [2023-08-25 19:02:38,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:38,289 INFO L124 PetriNetUnfolderBase]: 803/2006 cut-off events. [2023-08-25 19:02:38,289 INFO L125 PetriNetUnfolderBase]: For 198/218 co-relation queries the response was YES. [2023-08-25 19:02:38,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4017 conditions, 2006 events. 803/2006 cut-off events. For 198/218 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 13523 event pairs, 144 based on Foata normal form. 22/1969 useless extension candidates. Maximal degree in co-relation 4002. Up to 714 conditions per place. [2023-08-25 19:02:38,297 INFO L140 encePairwiseOnDemand]: 846/853 looper letters, 100 selfloop transitions, 7 changer transitions 2/141 dead transitions. [2023-08-25 19:02:38,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 141 transitions, 679 flow [2023-08-25 19:02:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:02:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:02:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1868 transitions. [2023-08-25 19:02:38,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4379835873388042 [2023-08-25 19:02:38,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1868 transitions. [2023-08-25 19:02:38,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1868 transitions. [2023-08-25 19:02:38,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:38,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1868 transitions. [2023-08-25 19:02:38,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 373.6) internal successors, (1868), 5 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,308 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,308 INFO L175 Difference]: Start difference. First operand has 93 places, 80 transitions, 286 flow. Second operand 5 states and 1868 transitions. [2023-08-25 19:02:38,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 141 transitions, 679 flow [2023-08-25 19:02:38,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 141 transitions, 639 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:02:38,311 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 308 flow [2023-08-25 19:02:38,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=308, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2023-08-25 19:02:38,312 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-25 19:02:38,312 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 308 flow [2023-08-25 19:02:38,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:38,313 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 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 19:02:38,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:02:38,313 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:38,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:38,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1867036103, now seen corresponding path program 2 times [2023-08-25 19:02:38,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:38,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828612112] [2023-08-25 19:02:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:38,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:38,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:38,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828612112] [2023-08-25 19:02:38,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828612112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:38,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:38,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:02:38,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612328619] [2023-08-25 19:02:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:38,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:02:38,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:38,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:02:38,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:02:38,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 853 [2023-08-25 19:02:38,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:38,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 853 [2023-08-25 19:02:38,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:38,843 INFO L124 PetriNetUnfolderBase]: 1362/3129 cut-off events. [2023-08-25 19:02:38,843 INFO L125 PetriNetUnfolderBase]: For 855/887 co-relation queries the response was YES. [2023-08-25 19:02:38,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6574 conditions, 3129 events. 1362/3129 cut-off events. For 855/887 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 21221 event pairs, 293 based on Foata normal form. 34/3010 useless extension candidates. Maximal degree in co-relation 6557. Up to 1151 conditions per place. [2023-08-25 19:02:38,856 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 92 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2023-08-25 19:02:38,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 126 transitions, 625 flow [2023-08-25 19:02:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:02:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:02:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1547 transitions. [2023-08-25 19:02:38,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4533997655334115 [2023-08-25 19:02:38,859 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1547 transitions. [2023-08-25 19:02:38,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1547 transitions. [2023-08-25 19:02:38,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:38,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1547 transitions. [2023-08-25 19:02:38,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 386.75) internal successors, (1547), 4 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,865 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,865 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 308 flow. Second operand 4 states and 1547 transitions. [2023-08-25 19:02:38,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 126 transitions, 625 flow [2023-08-25 19:02:38,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 126 transitions, 616 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:02:38,869 INFO L231 Difference]: Finished difference. Result has 97 places, 84 transitions, 329 flow [2023-08-25 19:02:38,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=329, PETRI_PLACES=97, PETRI_TRANSITIONS=84} [2023-08-25 19:02:38,869 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -4 predicate places. [2023-08-25 19:02:38,869 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 84 transitions, 329 flow [2023-08-25 19:02:38,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:38,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:38,870 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:38,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:02:38,870 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:38,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1964159056, now seen corresponding path program 1 times [2023-08-25 19:02:38,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:38,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925668438] [2023-08-25 19:02:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:38,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-25 19:02:39,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:39,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925668438] [2023-08-25 19:02:39,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925668438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:39,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:39,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:02:39,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387349370] [2023-08-25 19:02:39,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:39,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:02:39,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:39,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:02:39,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:02:39,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 853 [2023-08-25 19:02:39,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 84 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 373.0) internal successors, (1492), 4 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:39,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:39,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 853 [2023-08-25 19:02:39,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:39,515 INFO L124 PetriNetUnfolderBase]: 1797/4063 cut-off events. [2023-08-25 19:02:39,515 INFO L125 PetriNetUnfolderBase]: For 1505/1547 co-relation queries the response was YES. [2023-08-25 19:02:39,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8761 conditions, 4063 events. 1797/4063 cut-off events. For 1505/1547 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 28430 event pairs, 795 based on Foata normal form. 23/3999 useless extension candidates. Maximal degree in co-relation 8742. Up to 1540 conditions per place. [2023-08-25 19:02:39,534 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 88 selfloop transitions, 5 changer transitions 38/160 dead transitions. [2023-08-25 19:02:39,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 160 transitions, 807 flow [2023-08-25 19:02:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:02:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:02:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1947 transitions. [2023-08-25 19:02:39,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45650644783118405 [2023-08-25 19:02:39,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1947 transitions. [2023-08-25 19:02:39,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1947 transitions. [2023-08-25 19:02:39,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:39,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1947 transitions. [2023-08-25 19:02:39,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 389.4) internal successors, (1947), 5 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:39,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:39,544 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:39,544 INFO L175 Difference]: Start difference. First operand has 97 places, 84 transitions, 329 flow. Second operand 5 states and 1947 transitions. [2023-08-25 19:02:39,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 160 transitions, 807 flow [2023-08-25 19:02:39,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 160 transitions, 803 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:02:39,548 INFO L231 Difference]: Finished difference. Result has 102 places, 85 transitions, 358 flow [2023-08-25 19:02:39,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=102, PETRI_TRANSITIONS=85} [2023-08-25 19:02:39,549 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 1 predicate places. [2023-08-25 19:02:39,549 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 85 transitions, 358 flow [2023-08-25 19:02:39,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 373.0) internal successors, (1492), 4 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:39,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:39,549 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:39,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:02:39,549 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:39,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:39,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1031275774, now seen corresponding path program 2 times [2023-08-25 19:02:39,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:39,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763688748] [2023-08-25 19:02:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-25 19:02:39,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:39,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763688748] [2023-08-25 19:02:39,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763688748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:39,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:39,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:02:39,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528762059] [2023-08-25 19:02:39,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:39,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:02:39,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:39,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:02:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:02:39,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 853 [2023-08-25 19:02:39,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 85 transitions, 358 flow. Second operand has 4 states, 4 states have (on average 373.0) internal successors, (1492), 4 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:39,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:39,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 853 [2023-08-25 19:02:39,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:40,156 INFO L124 PetriNetUnfolderBase]: 1619/3733 cut-off events. [2023-08-25 19:02:40,156 INFO L125 PetriNetUnfolderBase]: For 1929/1949 co-relation queries the response was YES. [2023-08-25 19:02:40,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8396 conditions, 3733 events. 1619/3733 cut-off events. For 1929/1949 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 25813 event pairs, 785 based on Foata normal form. 28/3683 useless extension candidates. Maximal degree in co-relation 8375. Up to 1464 conditions per place. [2023-08-25 19:02:40,177 INFO L140 encePairwiseOnDemand]: 848/853 looper letters, 86 selfloop transitions, 7 changer transitions 3/125 dead transitions. [2023-08-25 19:02:40,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 125 transitions, 684 flow [2023-08-25 19:02:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:02:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:02:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1543 transitions. [2023-08-25 19:02:40,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4522274325908558 [2023-08-25 19:02:40,180 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1543 transitions. [2023-08-25 19:02:40,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1543 transitions. [2023-08-25 19:02:40,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:40,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1543 transitions. [2023-08-25 19:02:40,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 385.75) internal successors, (1543), 4 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,186 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,186 INFO L175 Difference]: Start difference. First operand has 102 places, 85 transitions, 358 flow. Second operand 4 states and 1543 transitions. [2023-08-25 19:02:40,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 125 transitions, 684 flow [2023-08-25 19:02:40,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 125 transitions, 676 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:02:40,190 INFO L231 Difference]: Finished difference. Result has 103 places, 87 transitions, 384 flow [2023-08-25 19:02:40,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=384, PETRI_PLACES=103, PETRI_TRANSITIONS=87} [2023-08-25 19:02:40,190 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2023-08-25 19:02:40,190 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 87 transitions, 384 flow [2023-08-25 19:02:40,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 373.0) internal successors, (1492), 4 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:40,191 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:40,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:02:40,191 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:40,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:40,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1710190678, now seen corresponding path program 1 times [2023-08-25 19:02:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:40,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138626146] [2023-08-25 19:02:40,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:40,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-25 19:02:40,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:40,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138626146] [2023-08-25 19:02:40,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138626146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:40,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577525595] [2023-08-25 19:02:40,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:40,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:02:40,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:40,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:02:40,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:02:40,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 853 [2023-08-25 19:02:40,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 87 transitions, 384 flow. Second operand has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:40,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 853 [2023-08-25 19:02:40,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:40,916 INFO L124 PetriNetUnfolderBase]: 1404/4457 cut-off events. [2023-08-25 19:02:40,917 INFO L125 PetriNetUnfolderBase]: For 4019/4054 co-relation queries the response was YES. [2023-08-25 19:02:40,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9753 conditions, 4457 events. 1404/4457 cut-off events. For 4019/4054 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 37415 event pairs, 384 based on Foata normal form. 18/4354 useless extension candidates. Maximal degree in co-relation 9731. Up to 796 conditions per place. [2023-08-25 19:02:40,939 INFO L140 encePairwiseOnDemand]: 844/853 looper letters, 112 selfloop transitions, 18 changer transitions 0/162 dead transitions. [2023-08-25 19:02:40,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 162 transitions, 951 flow [2023-08-25 19:02:40,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:02:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:02:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2230 transitions. [2023-08-25 19:02:40,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43571707698319656 [2023-08-25 19:02:40,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2230 transitions. [2023-08-25 19:02:40,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2230 transitions. [2023-08-25 19:02:40,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:40,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2230 transitions. [2023-08-25 19:02:40,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,950 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 853.0) internal successors, (5971), 7 states have internal predecessors, (5971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,950 INFO L175 Difference]: Start difference. First operand has 103 places, 87 transitions, 384 flow. Second operand 6 states and 2230 transitions. [2023-08-25 19:02:40,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 162 transitions, 951 flow [2023-08-25 19:02:40,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 162 transitions, 923 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 19:02:40,957 INFO L231 Difference]: Finished difference. Result has 109 places, 100 transitions, 528 flow [2023-08-25 19:02:40,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=109, PETRI_TRANSITIONS=100} [2023-08-25 19:02:40,957 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 8 predicate places. [2023-08-25 19:02:40,957 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 100 transitions, 528 flow [2023-08-25 19:02:40,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:40,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:40,958 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:40,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:02:40,958 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:40,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash 600401602, now seen corresponding path program 2 times [2023-08-25 19:02:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453883024] [2023-08-25 19:02:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:41,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:41,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453883024] [2023-08-25 19:02:41,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453883024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:41,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:41,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:41,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554012959] [2023-08-25 19:02:41,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:41,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:02:41,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:02:41,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:02:41,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 853 [2023-08-25 19:02:41,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 100 transitions, 528 flow. Second operand has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:41,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:41,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 853 [2023-08-25 19:02:41,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:41,727 INFO L124 PetriNetUnfolderBase]: 1647/5102 cut-off events. [2023-08-25 19:02:41,727 INFO L125 PetriNetUnfolderBase]: For 5905/5991 co-relation queries the response was YES. [2023-08-25 19:02:41,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11781 conditions, 5102 events. 1647/5102 cut-off events. For 5905/5991 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 44036 event pairs, 665 based on Foata normal form. 44/4993 useless extension candidates. Maximal degree in co-relation 11755. Up to 1719 conditions per place. [2023-08-25 19:02:41,754 INFO L140 encePairwiseOnDemand]: 847/853 looper letters, 98 selfloop transitions, 17 changer transitions 0/147 dead transitions. [2023-08-25 19:02:41,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 147 transitions, 994 flow [2023-08-25 19:02:41,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:02:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:02:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1850 transitions. [2023-08-25 19:02:41,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43376318874560377 [2023-08-25 19:02:41,756 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1850 transitions. [2023-08-25 19:02:41,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1850 transitions. [2023-08-25 19:02:41,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:41,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1850 transitions. [2023-08-25 19:02:41,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 370.0) internal successors, (1850), 5 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:41,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:41,761 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:41,762 INFO L175 Difference]: Start difference. First operand has 109 places, 100 transitions, 528 flow. Second operand 5 states and 1850 transitions. [2023-08-25 19:02:41,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 147 transitions, 994 flow [2023-08-25 19:02:41,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 147 transitions, 992 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 19:02:41,768 INFO L231 Difference]: Finished difference. Result has 116 places, 106 transitions, 637 flow [2023-08-25 19:02:41,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=637, PETRI_PLACES=116, PETRI_TRANSITIONS=106} [2023-08-25 19:02:41,768 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 15 predicate places. [2023-08-25 19:02:41,768 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 106 transitions, 637 flow [2023-08-25 19:02:41,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:41,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:41,769 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:41,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:02:41,769 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:41,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash 801627494, now seen corresponding path program 3 times [2023-08-25 19:02:41,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:41,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793410122] [2023-08-25 19:02:41,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:41,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-25 19:02:41,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:41,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793410122] [2023-08-25 19:02:41,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793410122] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:41,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:41,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:41,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806577660] [2023-08-25 19:02:41,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:41,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:02:41,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:41,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:02:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:02:41,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 853 [2023-08-25 19:02:41,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 106 transitions, 637 flow. Second operand has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:41,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:41,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 853 [2023-08-25 19:02:41,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:42,463 INFO L124 PetriNetUnfolderBase]: 1635/4892 cut-off events. [2023-08-25 19:02:42,463 INFO L125 PetriNetUnfolderBase]: For 6832/7002 co-relation queries the response was YES. [2023-08-25 19:02:42,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11941 conditions, 4892 events. 1635/4892 cut-off events. For 6832/7002 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 41149 event pairs, 719 based on Foata normal form. 40/4786 useless extension candidates. Maximal degree in co-relation 11911. Up to 1629 conditions per place. [2023-08-25 19:02:42,494 INFO L140 encePairwiseOnDemand]: 845/853 looper letters, 98 selfloop transitions, 14 changer transitions 2/146 dead transitions. [2023-08-25 19:02:42,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 146 transitions, 1049 flow [2023-08-25 19:02:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:02:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:02:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1849 transitions. [2023-08-25 19:02:42,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335287221570926 [2023-08-25 19:02:42,497 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1849 transitions. [2023-08-25 19:02:42,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1849 transitions. [2023-08-25 19:02:42,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:42,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1849 transitions. [2023-08-25 19:02:42,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 369.8) internal successors, (1849), 5 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:42,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:42,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:42,501 INFO L175 Difference]: Start difference. First operand has 116 places, 106 transitions, 637 flow. Second operand 5 states and 1849 transitions. [2023-08-25 19:02:42,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 146 transitions, 1049 flow [2023-08-25 19:02:42,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 146 transitions, 1032 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 19:02:42,512 INFO L231 Difference]: Finished difference. Result has 121 places, 106 transitions, 661 flow [2023-08-25 19:02:42,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=661, PETRI_PLACES=121, PETRI_TRANSITIONS=106} [2023-08-25 19:02:42,513 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 20 predicate places. [2023-08-25 19:02:42,514 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 106 transitions, 661 flow [2023-08-25 19:02:42,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:42,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:42,514 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:42,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:02:42,514 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:42,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash 122441058, now seen corresponding path program 4 times [2023-08-25 19:02:42,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:42,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415289469] [2023-08-25 19:02:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:42,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-25 19:02:42,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:42,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415289469] [2023-08-25 19:02:42,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415289469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:42,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:42,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:42,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605586882] [2023-08-25 19:02:42,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:42,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:02:42,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:42,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:02:42,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:02:42,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 853 [2023-08-25 19:02:42,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 106 transitions, 661 flow. Second operand has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:42,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:42,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 853 [2023-08-25 19:02:42,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:43,251 INFO L124 PetriNetUnfolderBase]: 1647/4880 cut-off events. [2023-08-25 19:02:43,252 INFO L125 PetriNetUnfolderBase]: For 8390/8486 co-relation queries the response was YES. [2023-08-25 19:02:43,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12312 conditions, 4880 events. 1647/4880 cut-off events. For 8390/8486 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 40246 event pairs, 749 based on Foata normal form. 40/4759 useless extension candidates. Maximal degree in co-relation 12280. Up to 1801 conditions per place. [2023-08-25 19:02:43,271 INFO L140 encePairwiseOnDemand]: 848/853 looper letters, 100 selfloop transitions, 11 changer transitions 2/145 dead transitions. [2023-08-25 19:02:43,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 145 transitions, 1094 flow [2023-08-25 19:02:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:02:43,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:02:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1844 transitions. [2023-08-25 19:02:43,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43235638921453695 [2023-08-25 19:02:43,274 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1844 transitions. [2023-08-25 19:02:43,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1844 transitions. [2023-08-25 19:02:43,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:43,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1844 transitions. [2023-08-25 19:02:43,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 368.8) internal successors, (1844), 5 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:43,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:43,278 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:43,278 INFO L175 Difference]: Start difference. First operand has 121 places, 106 transitions, 661 flow. Second operand 5 states and 1844 transitions. [2023-08-25 19:02:43,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 145 transitions, 1094 flow [2023-08-25 19:02:43,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 145 transitions, 1056 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-25 19:02:43,286 INFO L231 Difference]: Finished difference. Result has 123 places, 107 transitions, 683 flow [2023-08-25 19:02:43,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=683, PETRI_PLACES=123, PETRI_TRANSITIONS=107} [2023-08-25 19:02:43,286 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 22 predicate places. [2023-08-25 19:02:43,286 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 107 transitions, 683 flow [2023-08-25 19:02:43,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:43,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:43,287 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:43,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:02:43,287 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:43,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:43,287 INFO L85 PathProgramCache]: Analyzing trace with hash 825304974, now seen corresponding path program 5 times [2023-08-25 19:02:43,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:43,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331324939] [2023-08-25 19:02:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:43,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-25 19:02:43,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:43,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331324939] [2023-08-25 19:02:43,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331324939] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:02:43,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:02:43,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:02:43,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173243301] [2023-08-25 19:02:43,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:02:43,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:02:43,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:43,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:02:43,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:02:43,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 853 [2023-08-25 19:02:43,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 107 transitions, 683 flow. Second operand has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:43,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:43,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 853 [2023-08-25 19:02:43,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:44,152 INFO L124 PetriNetUnfolderBase]: 1994/6635 cut-off events. [2023-08-25 19:02:44,152 INFO L125 PetriNetUnfolderBase]: For 8385/8477 co-relation queries the response was YES. [2023-08-25 19:02:44,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15083 conditions, 6635 events. 1994/6635 cut-off events. For 8385/8477 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 61313 event pairs, 484 based on Foata normal form. 38/6510 useless extension candidates. Maximal degree in co-relation 15049. Up to 1319 conditions per place. [2023-08-25 19:02:44,194 INFO L140 encePairwiseOnDemand]: 846/853 looper letters, 100 selfloop transitions, 23 changer transitions 2/157 dead transitions. [2023-08-25 19:02:44,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 157 transitions, 1191 flow [2023-08-25 19:02:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:02:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:02:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1855 transitions. [2023-08-25 19:02:44,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349355216881594 [2023-08-25 19:02:44,196 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1855 transitions. [2023-08-25 19:02:44,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1855 transitions. [2023-08-25 19:02:44,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:44,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1855 transitions. [2023-08-25 19:02:44,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 371.0) internal successors, (1855), 5 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:44,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:44,200 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 853.0) internal successors, (5118), 6 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:44,200 INFO L175 Difference]: Start difference. First operand has 123 places, 107 transitions, 683 flow. Second operand 5 states and 1855 transitions. [2023-08-25 19:02:44,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 157 transitions, 1191 flow [2023-08-25 19:02:44,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 157 transitions, 1174 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:02:44,210 INFO L231 Difference]: Finished difference. Result has 127 places, 114 transitions, 833 flow [2023-08-25 19:02:44,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=833, PETRI_PLACES=127, PETRI_TRANSITIONS=114} [2023-08-25 19:02:44,210 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 26 predicate places. [2023-08-25 19:02:44,211 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 114 transitions, 833 flow [2023-08-25 19:02:44,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 359.4) internal successors, (1797), 5 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:44,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:44,211 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:44,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:02:44,211 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:44,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:44,211 INFO L85 PathProgramCache]: Analyzing trace with hash -319195657, now seen corresponding path program 1 times [2023-08-25 19:02:44,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:44,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113753561] [2023-08-25 19:02:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:44,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:45,312 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:45,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:45,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113753561] [2023-08-25 19:02:45,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113753561] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:02:45,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162607798] [2023-08-25 19:02:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:45,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:45,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:02:45,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:02:45,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 19:02:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:45,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-25 19:02:45,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:02:45,942 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:02:45,942 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2023-08-25 19:02:46,092 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:46,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:02:47,373 INFO L322 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2023-08-25 19:02:47,374 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 58 [2023-08-25 19:02:47,402 INFO L322 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-08-25 19:02:47,402 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2023-08-25 19:02:47,409 INFO L322 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2023-08-25 19:02:47,409 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 1 [2023-08-25 19:02:47,415 INFO L322 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2023-08-25 19:02:47,415 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 1 [2023-08-25 19:02:47,417 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-08-25 19:02:47,422 INFO L322 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2023-08-25 19:02:47,422 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 1 [2023-08-25 19:02:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:47,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162607798] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:02:47,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:02:47,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 30 [2023-08-25 19:02:47,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270566883] [2023-08-25 19:02:47,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:02:47,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-25 19:02:47,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:47,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-25 19:02:47,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2023-08-25 19:02:47,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:02:47,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 114 transitions, 833 flow. Second operand has 31 states, 31 states have (on average 301.48387096774195) internal successors, (9346), 31 states have internal predecessors, (9346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:47,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:47,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:02:47,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:02:51,225 INFO L124 PetriNetUnfolderBase]: 10694/19788 cut-off events. [2023-08-25 19:02:51,225 INFO L125 PetriNetUnfolderBase]: For 27170/27199 co-relation queries the response was YES. [2023-08-25 19:02:51,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51353 conditions, 19788 events. 10694/19788 cut-off events. For 27170/27199 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 147356 event pairs, 3379 based on Foata normal form. 25/19742 useless extension candidates. Maximal degree in co-relation 51317. Up to 8087 conditions per place. [2023-08-25 19:02:51,365 INFO L140 encePairwiseOnDemand]: 839/853 looper letters, 273 selfloop transitions, 42 changer transitions 2/338 dead transitions. [2023-08-25 19:02:51,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 338 transitions, 2459 flow [2023-08-25 19:02:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 19:02:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 19:02:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 5022 transitions. [2023-08-25 19:02:51,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36796600234466587 [2023-08-25 19:02:51,369 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 5022 transitions. [2023-08-25 19:02:51,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 5022 transitions. [2023-08-25 19:02:51,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:02:51,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 5022 transitions. [2023-08-25 19:02:51,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 313.875) internal successors, (5022), 16 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:51,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 853.0) internal successors, (14501), 17 states have internal predecessors, (14501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:51,380 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 853.0) internal successors, (14501), 17 states have internal predecessors, (14501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:51,380 INFO L175 Difference]: Start difference. First operand has 127 places, 114 transitions, 833 flow. Second operand 16 states and 5022 transitions. [2023-08-25 19:02:51,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 338 transitions, 2459 flow [2023-08-25 19:02:51,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 338 transitions, 2439 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 19:02:51,414 INFO L231 Difference]: Finished difference. Result has 147 places, 141 transitions, 1226 flow [2023-08-25 19:02:51,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1226, PETRI_PLACES=147, PETRI_TRANSITIONS=141} [2023-08-25 19:02:51,414 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 46 predicate places. [2023-08-25 19:02:51,414 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 141 transitions, 1226 flow [2023-08-25 19:02:51,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 301.48387096774195) internal successors, (9346), 31 states have internal predecessors, (9346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:51,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:02:51,416 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:51,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-25 19:02:51,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:51,620 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:02:51,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:02:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1366845545, now seen corresponding path program 2 times [2023-08-25 19:02:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:02:51,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731113197] [2023-08-25 19:02:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:02:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:02:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:02:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:52,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:02:52,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731113197] [2023-08-25 19:02:52,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731113197] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:02:52,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100040642] [2023-08-25 19:02:52,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:02:52,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:02:52,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:02:52,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:02:52,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 19:02:53,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:02:53,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:02:53,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 19:02:53,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:02:53,353 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:02:53,354 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2023-08-25 19:02:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:53,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:02:54,731 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:02:54,731 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 19:02:54,761 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:02:54,761 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:02:54,764 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:02:54,764 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:02:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:02:54,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100040642] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:02:54,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:02:54,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 36 [2023-08-25 19:02:54,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468715561] [2023-08-25 19:02:54,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:02:54,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-25 19:02:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:02:54,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-25 19:02:54,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2023-08-25 19:02:54,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:02:54,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 141 transitions, 1226 flow. Second operand has 37 states, 37 states have (on average 301.5945945945946) internal successors, (11159), 37 states have internal predecessors, (11159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:02:54,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:02:54,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:02:54,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:03:01,102 INFO L124 PetriNetUnfolderBase]: 15805/29246 cut-off events. [2023-08-25 19:03:01,102 INFO L125 PetriNetUnfolderBase]: For 52148/52187 co-relation queries the response was YES. [2023-08-25 19:03:01,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80496 conditions, 29246 events. 15805/29246 cut-off events. For 52148/52187 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 233845 event pairs, 4264 based on Foata normal form. 29/29195 useless extension candidates. Maximal degree in co-relation 80453. Up to 9439 conditions per place. [2023-08-25 19:03:01,347 INFO L140 encePairwiseOnDemand]: 838/853 looper letters, 345 selfloop transitions, 82 changer transitions 3/451 dead transitions. [2023-08-25 19:03:01,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 451 transitions, 3790 flow [2023-08-25 19:03:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 19:03:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 19:03:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 5685 transitions. [2023-08-25 19:03:01,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3702618210238374 [2023-08-25 19:03:01,353 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 5685 transitions. [2023-08-25 19:03:01,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 5685 transitions. [2023-08-25 19:03:01,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:03:01,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 5685 transitions. [2023-08-25 19:03:01,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 315.8333333333333) internal successors, (5685), 18 states have internal predecessors, (5685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:01,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 853.0) internal successors, (16207), 19 states have internal predecessors, (16207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:01,365 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 853.0) internal successors, (16207), 19 states have internal predecessors, (16207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:01,365 INFO L175 Difference]: Start difference. First operand has 147 places, 141 transitions, 1226 flow. Second operand 18 states and 5685 transitions. [2023-08-25 19:03:01,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 451 transitions, 3790 flow [2023-08-25 19:03:01,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 451 transitions, 3771 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-25 19:03:01,475 INFO L231 Difference]: Finished difference. Result has 173 places, 194 transitions, 2200 flow [2023-08-25 19:03:01,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2200, PETRI_PLACES=173, PETRI_TRANSITIONS=194} [2023-08-25 19:03:01,475 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 72 predicate places. [2023-08-25 19:03:01,475 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 194 transitions, 2200 flow [2023-08-25 19:03:01,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 301.5945945945946) internal successors, (11159), 37 states have internal predecessors, (11159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:01,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:03:01,477 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:01,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-25 19:03:01,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-08-25 19:03:01,681 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:03:01,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:03:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1738932843, now seen corresponding path program 3 times [2023-08-25 19:03:01,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:03:01,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623994598] [2023-08-25 19:03:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:03:01,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:03:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:03:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:02,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:03:02,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623994598] [2023-08-25 19:03:02,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623994598] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:03:02,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864940531] [2023-08-25 19:03:02,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:03:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:03:02,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:03:02,833 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:03:02,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 19:03:03,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 19:03:03,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:03:03,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 50 conjunts are in the unsatisfiable core [2023-08-25 19:03:03,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:03:03,501 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:03:03,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2023-08-25 19:03:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:03,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:03:04,626 INFO L322 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2023-08-25 19:03:04,626 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 58 [2023-08-25 19:03:04,663 INFO L322 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2023-08-25 19:03:04,663 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 1 [2023-08-25 19:03:04,667 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:03:04,667 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 4 [2023-08-25 19:03:04,669 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-08-25 19:03:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:04,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864940531] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:03:04,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:03:04,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 35 [2023-08-25 19:03:04,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85807043] [2023-08-25 19:03:04,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:03:04,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-08-25 19:03:04,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:03:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-08-25 19:03:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2023-08-25 19:03:04,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 853 [2023-08-25 19:03:04,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 194 transitions, 2200 flow. Second operand has 36 states, 36 states have (on average 298.6388888888889) internal successors, (10751), 36 states have internal predecessors, (10751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:04,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:03:04,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 853 [2023-08-25 19:03:04,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:03:13,473 INFO L124 PetriNetUnfolderBase]: 20786/38448 cut-off events. [2023-08-25 19:03:13,473 INFO L125 PetriNetUnfolderBase]: For 95883/95928 co-relation queries the response was YES. [2023-08-25 19:03:13,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114846 conditions, 38448 events. 20786/38448 cut-off events. For 95883/95928 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 322591 event pairs, 3561 based on Foata normal form. 42/38374 useless extension candidates. Maximal degree in co-relation 114792. Up to 9325 conditions per place. [2023-08-25 19:03:13,837 INFO L140 encePairwiseOnDemand]: 839/853 looper letters, 448 selfloop transitions, 155 changer transitions 20/644 dead transitions. [2023-08-25 19:03:13,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 644 transitions, 5713 flow [2023-08-25 19:03:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-25 19:03:13,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-25 19:03:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 8721 transitions. [2023-08-25 19:03:13,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3651398425724334 [2023-08-25 19:03:13,846 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 8721 transitions. [2023-08-25 19:03:13,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 8721 transitions. [2023-08-25 19:03:13,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:03:13,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 8721 transitions. [2023-08-25 19:03:13,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 311.4642857142857) internal successors, (8721), 28 states have internal predecessors, (8721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:13,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 853.0) internal successors, (24737), 29 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:13,878 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 853.0) internal successors, (24737), 29 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:13,878 INFO L175 Difference]: Start difference. First operand has 173 places, 194 transitions, 2200 flow. Second operand 28 states and 8721 transitions. [2023-08-25 19:03:13,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 644 transitions, 5713 flow [2023-08-25 19:03:14,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 644 transitions, 5603 flow, removed 49 selfloop flow, removed 4 redundant places. [2023-08-25 19:03:14,205 INFO L231 Difference]: Finished difference. Result has 214 places, 285 transitions, 3794 flow [2023-08-25 19:03:14,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3794, PETRI_PLACES=214, PETRI_TRANSITIONS=285} [2023-08-25 19:03:14,206 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 113 predicate places. [2023-08-25 19:03:14,206 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 285 transitions, 3794 flow [2023-08-25 19:03:14,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 298.6388888888889) internal successors, (10751), 36 states have internal predecessors, (10751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:14,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:03:14,207 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:14,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 19:03:14,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-08-25 19:03:14,414 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:03:14,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:03:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash -376274205, now seen corresponding path program 4 times [2023-08-25 19:03:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:03:14,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585370042] [2023-08-25 19:03:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:03:14,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:03:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:03:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:15,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:03:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585370042] [2023-08-25 19:03:15,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585370042] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:03:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696696283] [2023-08-25 19:03:15,607 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:03:15,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:03:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:03:15,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:03:15,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 19:03:16,034 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:03:16,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:03:16,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-25 19:03:16,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:03:16,423 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:03:16,423 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-08-25 19:03:16,484 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:16,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:03:17,603 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:03:17,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 50 [2023-08-25 19:03:17,627 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:03:17,628 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:03:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:17,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696696283] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:03:17,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:03:17,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 32 [2023-08-25 19:03:17,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690679011] [2023-08-25 19:03:17,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:03:17,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-25 19:03:17,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:03:17,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-25 19:03:17,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2023-08-25 19:03:17,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:03:17,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 285 transitions, 3794 flow. Second operand has 33 states, 33 states have (on average 301.3636363636364) internal successors, (9945), 33 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:17,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:03:17,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:03:17,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:03:27,557 INFO L124 PetriNetUnfolderBase]: 26299/48958 cut-off events. [2023-08-25 19:03:27,557 INFO L125 PetriNetUnfolderBase]: For 247461/247494 co-relation queries the response was YES. [2023-08-25 19:03:28,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169977 conditions, 48958 events. 26299/48958 cut-off events. For 247461/247494 co-relation queries the response was YES. Maximal size of possible extension queue 855. Compared 427437 event pairs, 7876 based on Foata normal form. 30/48845 useless extension candidates. Maximal degree in co-relation 169905. Up to 17034 conditions per place. [2023-08-25 19:03:28,297 INFO L140 encePairwiseOnDemand]: 839/853 looper letters, 441 selfloop transitions, 119 changer transitions 3/584 dead transitions. [2023-08-25 19:03:28,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 584 transitions, 7229 flow [2023-08-25 19:03:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 19:03:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 19:03:28,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 5669 transitions. [2023-08-25 19:03:28,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36921974729712126 [2023-08-25 19:03:28,301 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 5669 transitions. [2023-08-25 19:03:28,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 5669 transitions. [2023-08-25 19:03:28,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:03:28,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 5669 transitions. [2023-08-25 19:03:28,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 314.94444444444446) internal successors, (5669), 18 states have internal predecessors, (5669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:28,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 853.0) internal successors, (16207), 19 states have internal predecessors, (16207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:28,314 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 853.0) internal successors, (16207), 19 states have internal predecessors, (16207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:28,314 INFO L175 Difference]: Start difference. First operand has 214 places, 285 transitions, 3794 flow. Second operand 18 states and 5669 transitions. [2023-08-25 19:03:28,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 584 transitions, 7229 flow [2023-08-25 19:03:29,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 584 transitions, 6807 flow, removed 193 selfloop flow, removed 3 redundant places. [2023-08-25 19:03:29,245 INFO L231 Difference]: Finished difference. Result has 236 places, 315 transitions, 4266 flow [2023-08-25 19:03:29,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=3462, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4266, PETRI_PLACES=236, PETRI_TRANSITIONS=315} [2023-08-25 19:03:29,246 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 135 predicate places. [2023-08-25 19:03:29,246 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 315 transitions, 4266 flow [2023-08-25 19:03:29,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 301.3636363636364) internal successors, (9945), 33 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:03:29,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:03:29,247 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:29,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 19:03:29,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:03:29,453 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:03:29,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:03:29,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2071987491, now seen corresponding path program 5 times [2023-08-25 19:03:29,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:03:29,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137176193] [2023-08-25 19:03:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:03:29,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:03:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:03:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:03:30,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:03:30,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137176193] [2023-08-25 19:03:30,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137176193] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:03:30,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670365041] [2023-08-25 19:03:30,615 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:03:30,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:03:30,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:03:30,617 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:03:30,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 19:10:22,158 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-25 19:10:22,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:10:22,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-25 19:10:22,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:10:22,520 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:10:22,520 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2023-08-25 19:10:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:10:22,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:11:05,470 WARN L234 SmtUtils]: Spent 40.08s on a formula simplification. DAG size of input: 44 DAG size of output: 38 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 19:11:25,875 WARN L234 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 19:11:26,029 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:11:26,030 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 50 [2023-08-25 19:11:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:11:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670365041] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:11:26,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:11:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2023-08-25 19:11:26,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404210492] [2023-08-25 19:11:26,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:11:26,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-08-25 19:11:26,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:11:26,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-08-25 19:11:26,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=984, Unknown=5, NotChecked=0, Total=1122 [2023-08-25 19:11:26,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:11:26,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 315 transitions, 4266 flow. Second operand has 34 states, 34 states have (on average 301.55882352941177) internal successors, (10253), 34 states have internal predecessors, (10253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:26,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:11:26,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:11:26,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:11:37,028 INFO L124 PetriNetUnfolderBase]: 28725/54286 cut-off events. [2023-08-25 19:11:37,028 INFO L125 PetriNetUnfolderBase]: For 331816/331902 co-relation queries the response was YES. [2023-08-25 19:11:37,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192717 conditions, 54286 events. 28725/54286 cut-off events. For 331816/331902 co-relation queries the response was YES. Maximal size of possible extension queue 977. Compared 490445 event pairs, 10679 based on Foata normal form. 37/54161 useless extension candidates. Maximal degree in co-relation 192637. Up to 29182 conditions per place. [2023-08-25 19:11:38,033 INFO L140 encePairwiseOnDemand]: 840/853 looper letters, 431 selfloop transitions, 95 changer transitions 4/551 dead transitions. [2023-08-25 19:11:38,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 551 transitions, 6891 flow [2023-08-25 19:11:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 19:11:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 19:11:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 5040 transitions. [2023-08-25 19:11:38,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.369284876905041 [2023-08-25 19:11:38,036 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 5040 transitions. [2023-08-25 19:11:38,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 5040 transitions. [2023-08-25 19:11:38,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:11:38,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 5040 transitions. [2023-08-25 19:11:38,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 315.0) internal successors, (5040), 16 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:38,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 853.0) internal successors, (14501), 17 states have internal predecessors, (14501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:38,047 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 853.0) internal successors, (14501), 17 states have internal predecessors, (14501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:38,047 INFO L175 Difference]: Start difference. First operand has 236 places, 315 transitions, 4266 flow. Second operand 16 states and 5040 transitions. [2023-08-25 19:11:38,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 551 transitions, 6891 flow [2023-08-25 19:11:39,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 551 transitions, 6688 flow, removed 86 selfloop flow, removed 5 redundant places. [2023-08-25 19:11:39,504 INFO L231 Difference]: Finished difference. Result has 252 places, 341 transitions, 4791 flow [2023-08-25 19:11:39,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=4081, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4791, PETRI_PLACES=252, PETRI_TRANSITIONS=341} [2023-08-25 19:11:39,504 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 151 predicate places. [2023-08-25 19:11:39,505 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 341 transitions, 4791 flow [2023-08-25 19:11:39,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 301.55882352941177) internal successors, (10253), 34 states have internal predecessors, (10253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:39,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:11:39,506 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:11:39,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 19:11:39,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-08-25 19:11:39,707 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:11:39,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:11:39,707 INFO L85 PathProgramCache]: Analyzing trace with hash 901943439, now seen corresponding path program 6 times [2023-08-25 19:11:39,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:11:39,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228471776] [2023-08-25 19:11:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:11:39,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:11:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:11:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:11:40,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:11:40,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228471776] [2023-08-25 19:11:40,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228471776] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:11:40,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981451874] [2023-08-25 19:11:40,686 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:11:40,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:11:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:11:40,697 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:11:40,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 19:11:41,698 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 19:11:41,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:11:41,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 50 conjunts are in the unsatisfiable core [2023-08-25 19:11:41,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:11:41,974 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:11:41,974 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2023-08-25 19:11:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:11:42,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:11:43,208 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:11:43,209 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 54 [2023-08-25 19:11:43,237 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:11:43,238 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 1 [2023-08-25 19:11:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:11:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981451874] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:11:43,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:11:43,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 35 [2023-08-25 19:11:43,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465414618] [2023-08-25 19:11:43,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:11:43,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-08-25 19:11:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:11:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-08-25 19:11:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2023-08-25 19:11:43,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:11:43,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 341 transitions, 4791 flow. Second operand has 36 states, 36 states have (on average 301.6388888888889) internal successors, (10859), 36 states have internal predecessors, (10859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:43,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:11:43,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:11:43,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:11:56,748 INFO L124 PetriNetUnfolderBase]: 30995/57837 cut-off events. [2023-08-25 19:11:56,748 INFO L125 PetriNetUnfolderBase]: For 369683/369793 co-relation queries the response was YES. [2023-08-25 19:11:57,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208523 conditions, 57837 events. 30995/57837 cut-off events. For 369683/369793 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 522496 event pairs, 4569 based on Foata normal form. 49/57776 useless extension candidates. Maximal degree in co-relation 208437. Up to 17206 conditions per place. [2023-08-25 19:11:57,965 INFO L140 encePairwiseOnDemand]: 838/853 looper letters, 511 selfloop transitions, 219 changer transitions 3/754 dead transitions. [2023-08-25 19:11:57,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 754 transitions, 9043 flow [2023-08-25 19:11:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 19:11:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 19:11:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6681 transitions. [2023-08-25 19:11:57,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3729693518673589 [2023-08-25 19:11:57,971 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6681 transitions. [2023-08-25 19:11:57,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6681 transitions. [2023-08-25 19:11:57,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:11:57,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6681 transitions. [2023-08-25 19:11:57,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 318.14285714285717) internal successors, (6681), 21 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:57,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 853.0) internal successors, (18766), 22 states have internal predecessors, (18766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:57,987 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 853.0) internal successors, (18766), 22 states have internal predecessors, (18766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:11:57,987 INFO L175 Difference]: Start difference. First operand has 252 places, 341 transitions, 4791 flow. Second operand 21 states and 6681 transitions. [2023-08-25 19:11:57,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 754 transitions, 9043 flow [2023-08-25 19:12:00,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 754 transitions, 8825 flow, removed 68 selfloop flow, removed 5 redundant places. [2023-08-25 19:12:00,331 INFO L231 Difference]: Finished difference. Result has 277 places, 400 transitions, 6365 flow [2023-08-25 19:12:00,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=4607, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6365, PETRI_PLACES=277, PETRI_TRANSITIONS=400} [2023-08-25 19:12:00,332 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 176 predicate places. [2023-08-25 19:12:00,332 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 400 transitions, 6365 flow [2023-08-25 19:12:00,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 301.6388888888889) internal successors, (10859), 36 states have internal predecessors, (10859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:00,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:12:00,334 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:12:00,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 19:12:00,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-08-25 19:12:00,540 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:12:00,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:12:00,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1748876705, now seen corresponding path program 7 times [2023-08-25 19:12:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:12:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073350859] [2023-08-25 19:12:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:12:00,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:12:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:12:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:01,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:12:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073350859] [2023-08-25 19:12:01,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073350859] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:12:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396512429] [2023-08-25 19:12:01,751 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:12:01,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:12:01,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:12:01,761 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:12:01,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 19:12:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:12:02,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-25 19:12:02,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:12:02,476 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:12:02,476 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-08-25 19:12:02,583 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:02,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:12:03,875 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:12:03,875 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 50 [2023-08-25 19:12:03,911 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:12:03,912 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:12:03,916 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:12:03,916 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:12:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:03,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396512429] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:12:03,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:12:03,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 31 [2023-08-25 19:12:03,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436202541] [2023-08-25 19:12:03,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:12:03,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 19:12:03,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:12:03,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 19:12:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2023-08-25 19:12:03,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:12:03,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 400 transitions, 6365 flow. Second operand has 32 states, 32 states have (on average 301.40625) internal successors, (9645), 32 states have internal predecessors, (9645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:03,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:12:03,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:12:03,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:12:19,225 INFO L124 PetriNetUnfolderBase]: 31455/59596 cut-off events. [2023-08-25 19:12:19,226 INFO L125 PetriNetUnfolderBase]: For 487589/487690 co-relation queries the response was YES. [2023-08-25 19:12:20,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224634 conditions, 59596 events. 31455/59596 cut-off events. For 487589/487690 co-relation queries the response was YES. Maximal size of possible extension queue 1104. Compared 547294 event pairs, 12327 based on Foata normal form. 40/59470 useless extension candidates. Maximal degree in co-relation 224538. Up to 30247 conditions per place. [2023-08-25 19:12:20,624 INFO L140 encePairwiseOnDemand]: 838/853 looper letters, 531 selfloop transitions, 124 changer transitions 3/679 dead transitions. [2023-08-25 19:12:20,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 679 transitions, 9186 flow [2023-08-25 19:12:20,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 19:12:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 19:12:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 6308 transitions. [2023-08-25 19:12:20,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3697538100820633 [2023-08-25 19:12:20,637 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 6308 transitions. [2023-08-25 19:12:20,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 6308 transitions. [2023-08-25 19:12:20,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:12:20,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 6308 transitions. [2023-08-25 19:12:20,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 315.4) internal successors, (6308), 20 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:20,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 853.0) internal successors, (17913), 21 states have internal predecessors, (17913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:20,650 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 853.0) internal successors, (17913), 21 states have internal predecessors, (17913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:20,650 INFO L175 Difference]: Start difference. First operand has 277 places, 400 transitions, 6365 flow. Second operand 20 states and 6308 transitions. [2023-08-25 19:12:20,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 679 transitions, 9186 flow [2023-08-25 19:12:23,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 679 transitions, 8829 flow, removed 119 selfloop flow, removed 6 redundant places. [2023-08-25 19:12:23,454 INFO L231 Difference]: Finished difference. Result has 293 places, 409 transitions, 6470 flow [2023-08-25 19:12:23,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=6008, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6470, PETRI_PLACES=293, PETRI_TRANSITIONS=409} [2023-08-25 19:12:23,455 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 192 predicate places. [2023-08-25 19:12:23,455 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 409 transitions, 6470 flow [2023-08-25 19:12:23,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 301.40625) internal successors, (9645), 32 states have internal predecessors, (9645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:23,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:12:23,456 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:12:23,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 19:12:23,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:12:23,662 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:12:23,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:12:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1602325725, now seen corresponding path program 8 times [2023-08-25 19:12:23,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:12:23,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467240533] [2023-08-25 19:12:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:12:23,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:12:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:12:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:24,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:12:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467240533] [2023-08-25 19:12:24,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467240533] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:12:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485550566] [2023-08-25 19:12:24,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:12:24,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:12:24,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:12:24,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:12:24,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-25 19:12:24,913 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:12:24,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:12:24,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 19:12:24,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:12:25,204 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:12:25,204 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-08-25 19:12:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:25,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:12:26,324 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:12:26,325 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 48 [2023-08-25 19:12:26,338 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:12:26,338 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:12:26,342 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:12:26,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:12:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:26,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485550566] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:12:26,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:12:26,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 31 [2023-08-25 19:12:26,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142377269] [2023-08-25 19:12:26,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:12:26,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 19:12:26,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:12:26,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 19:12:26,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2023-08-25 19:12:26,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:12:26,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 409 transitions, 6470 flow. Second operand has 32 states, 32 states have (on average 301.375) internal successors, (9644), 32 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:26,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:12:26,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:12:26,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:12:40,100 INFO L124 PetriNetUnfolderBase]: 32202/60952 cut-off events. [2023-08-25 19:12:40,101 INFO L125 PetriNetUnfolderBase]: For 499505/499600 co-relation queries the response was YES. [2023-08-25 19:12:41,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229584 conditions, 60952 events. 32202/60952 cut-off events. For 499505/499600 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 561245 event pairs, 13171 based on Foata normal form. 39/60812 useless extension candidates. Maximal degree in co-relation 229486. Up to 34816 conditions per place. [2023-08-25 19:12:41,194 INFO L140 encePairwiseOnDemand]: 839/853 looper letters, 482 selfloop transitions, 107 changer transitions 3/613 dead transitions. [2023-08-25 19:12:41,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 613 transitions, 9014 flow [2023-08-25 19:12:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 19:12:41,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 19:12:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4427 transitions. [2023-08-25 19:12:41,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37070842404957294 [2023-08-25 19:12:41,228 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4427 transitions. [2023-08-25 19:12:41,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4427 transitions. [2023-08-25 19:12:41,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:12:41,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4427 transitions. [2023-08-25 19:12:41,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 316.2142857142857) internal successors, (4427), 14 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:41,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 853.0) internal successors, (12795), 15 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:41,240 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 853.0) internal successors, (12795), 15 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:41,240 INFO L175 Difference]: Start difference. First operand has 293 places, 409 transitions, 6470 flow. Second operand 14 states and 4427 transitions. [2023-08-25 19:12:41,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 613 transitions, 9014 flow [2023-08-25 19:12:43,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 613 transitions, 8801 flow, removed 32 selfloop flow, removed 13 redundant places. [2023-08-25 19:12:43,926 INFO L231 Difference]: Finished difference. Result has 297 places, 422 transitions, 6797 flow [2023-08-25 19:12:43,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=6257, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6797, PETRI_PLACES=297, PETRI_TRANSITIONS=422} [2023-08-25 19:12:43,926 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 196 predicate places. [2023-08-25 19:12:43,927 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 422 transitions, 6797 flow [2023-08-25 19:12:43,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 301.375) internal successors, (9644), 32 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:43,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:12:43,928 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:12:43,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-25 19:12:44,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-08-25 19:12:44,132 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:12:44,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:12:44,133 INFO L85 PathProgramCache]: Analyzing trace with hash 302556655, now seen corresponding path program 9 times [2023-08-25 19:12:44,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:12:44,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468373227] [2023-08-25 19:12:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:12:44,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:12:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:12:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:45,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:12:45,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468373227] [2023-08-25 19:12:45,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468373227] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:12:45,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907399176] [2023-08-25 19:12:45,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:12:45,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:12:45,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:12:45,229 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:12:45,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-25 19:12:45,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 19:12:45,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:12:45,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 19:12:45,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:12:45,943 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 19:12:45,950 INFO L322 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2023-08-25 19:12:45,950 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 23 [2023-08-25 19:12:46,069 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:46,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:12:47,154 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:12:47,155 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 48 [2023-08-25 19:12:47,166 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:12:47,166 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:12:47,169 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:12:47,169 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:12:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:12:47,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907399176] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:12:47,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:12:47,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 31 [2023-08-25 19:12:47,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835451723] [2023-08-25 19:12:47,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:12:47,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 19:12:47,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:12:47,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 19:12:47,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=875, Unknown=0, NotChecked=0, Total=992 [2023-08-25 19:12:47,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:12:47,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 422 transitions, 6797 flow. Second operand has 32 states, 32 states have (on average 301.5) internal successors, (9648), 32 states have internal predecessors, (9648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:12:47,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:12:47,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:12:47,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:13:02,631 INFO L124 PetriNetUnfolderBase]: 34181/64684 cut-off events. [2023-08-25 19:13:02,631 INFO L125 PetriNetUnfolderBase]: For 569333/569441 co-relation queries the response was YES. [2023-08-25 19:13:03,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247744 conditions, 64684 events. 34181/64684 cut-off events. For 569333/569441 co-relation queries the response was YES. Maximal size of possible extension queue 1179. Compared 601350 event pairs, 14643 based on Foata normal form. 39/64519 useless extension candidates. Maximal degree in co-relation 247642. Up to 36932 conditions per place. [2023-08-25 19:13:04,205 INFO L140 encePairwiseOnDemand]: 839/853 looper letters, 502 selfloop transitions, 112 changer transitions 3/638 dead transitions. [2023-08-25 19:13:04,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 638 transitions, 9517 flow [2023-08-25 19:13:04,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 19:13:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 19:13:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4437 transitions. [2023-08-25 19:13:04,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.371545804722827 [2023-08-25 19:13:04,224 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4437 transitions. [2023-08-25 19:13:04,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4437 transitions. [2023-08-25 19:13:04,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:13:04,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4437 transitions. [2023-08-25 19:13:04,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 316.92857142857144) internal successors, (4437), 14 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:04,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 853.0) internal successors, (12795), 15 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:04,238 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 853.0) internal successors, (12795), 15 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:04,238 INFO L175 Difference]: Start difference. First operand has 297 places, 422 transitions, 6797 flow. Second operand 14 states and 4437 transitions. [2023-08-25 19:13:04,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 638 transitions, 9517 flow [2023-08-25 19:13:07,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 638 transitions, 9256 flow, removed 73 selfloop flow, removed 6 redundant places. [2023-08-25 19:13:07,300 INFO L231 Difference]: Finished difference. Result has 308 places, 447 transitions, 7411 flow [2023-08-25 19:13:07,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=6542, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7411, PETRI_PLACES=308, PETRI_TRANSITIONS=447} [2023-08-25 19:13:07,300 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 207 predicate places. [2023-08-25 19:13:07,300 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 447 transitions, 7411 flow [2023-08-25 19:13:07,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 301.5) internal successors, (9648), 32 states have internal predecessors, (9648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:07,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:13:07,301 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:07,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-25 19:13:07,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-08-25 19:13:07,509 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:13:07,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:13:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1190306557, now seen corresponding path program 10 times [2023-08-25 19:13:07,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:13:07,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495902118] [2023-08-25 19:13:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:13:07,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:13:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:13:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:13:08,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:13:08,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495902118] [2023-08-25 19:13:08,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495902118] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:13:08,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642796709] [2023-08-25 19:13:08,529 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:13:08,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:13:08,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:13:08,530 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:13:08,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-25 19:13:09,004 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:13:09,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:13:09,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 55 conjunts are in the unsatisfiable core [2023-08-25 19:13:09,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:13:09,345 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 19:13:09,353 INFO L322 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2023-08-25 19:13:09,353 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 23 [2023-08-25 19:13:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:13:09,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:13:10,647 INFO L322 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-08-25 19:13:10,648 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-25 19:13:10,683 INFO L322 Elim1Store]: treesize reduction 28, result has 59.4 percent of original size [2023-08-25 19:13:10,683 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 50 [2023-08-25 19:13:10,714 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:13:10,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:13:10,718 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:13:10,718 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:13:10,722 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 19:13:10,722 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 1 [2023-08-25 19:13:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:13:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642796709] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:13:10,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:13:10,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 11] total 31 [2023-08-25 19:13:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681647005] [2023-08-25 19:13:10,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:13:10,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 19:13:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:13:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 19:13:10,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2023-08-25 19:13:10,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:13:10,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 447 transitions, 7411 flow. Second operand has 32 states, 32 states have (on average 301.4375) internal successors, (9646), 32 states have internal predecessors, (9646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:10,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:13:10,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:13:10,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:13:26,715 INFO L124 PetriNetUnfolderBase]: 37900/70656 cut-off events. [2023-08-25 19:13:26,716 INFO L125 PetriNetUnfolderBase]: For 690149/690223 co-relation queries the response was YES. [2023-08-25 19:13:27,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276710 conditions, 70656 events. 37900/70656 cut-off events. For 690149/690223 co-relation queries the response was YES. Maximal size of possible extension queue 1263. Compared 658074 event pairs, 10913 based on Foata normal form. 33/70525 useless extension candidates. Maximal degree in co-relation 276604. Up to 28410 conditions per place. [2023-08-25 19:13:28,178 INFO L140 encePairwiseOnDemand]: 840/853 looper letters, 560 selfloop transitions, 116 changer transitions 3/700 dead transitions. [2023-08-25 19:13:28,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 700 transitions, 11069 flow [2023-08-25 19:13:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 19:13:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 19:13:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4424 transitions. [2023-08-25 19:13:28,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704572098475967 [2023-08-25 19:13:28,181 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4424 transitions. [2023-08-25 19:13:28,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4424 transitions. [2023-08-25 19:13:28,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:13:28,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4424 transitions. [2023-08-25 19:13:28,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 316.0) internal successors, (4424), 14 states have internal predecessors, (4424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:28,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 853.0) internal successors, (12795), 15 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:28,193 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 853.0) internal successors, (12795), 15 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:28,193 INFO L175 Difference]: Start difference. First operand has 308 places, 447 transitions, 7411 flow. Second operand 14 states and 4424 transitions. [2023-08-25 19:13:28,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 700 transitions, 11069 flow [2023-08-25 19:13:32,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 700 transitions, 10769 flow, removed 92 selfloop flow, removed 6 redundant places. [2023-08-25 19:13:32,533 INFO L231 Difference]: Finished difference. Result has 323 places, 481 transitions, 8296 flow [2023-08-25 19:13:32,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=853, PETRI_DIFFERENCE_MINUEND_FLOW=7132, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8296, PETRI_PLACES=323, PETRI_TRANSITIONS=481} [2023-08-25 19:13:32,538 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, 222 predicate places. [2023-08-25 19:13:32,538 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 481 transitions, 8296 flow [2023-08-25 19:13:32,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 301.4375) internal successors, (9646), 32 states have internal predecessors, (9646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:13:32,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:13:32,539 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:32,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-25 19:13:32,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-08-25 19:13:32,745 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 19:13:32,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:13:32,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1646320031, now seen corresponding path program 11 times [2023-08-25 19:13:32,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:13:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120986174] [2023-08-25 19:13:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:13:32,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:13:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:13:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 19:13:33,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:13:33,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120986174] [2023-08-25 19:13:33,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120986174] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:13:33,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147220057] [2023-08-25 19:13:33,788 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:13:33,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:13:33,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:13:33,789 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:13:33,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process Received shutdown request... [2023-08-25 19:16:12,897 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 19:16:12,897 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 19:16:14,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-08-25 19:16:14,109 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forcibly destroying the process [2023-08-25 19:16:14,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 137 [2023-08-25 19:16:14,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 19:16:14,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-08-25 19:16:14,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-08-25 19:16:14,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479423428] [2023-08-25 19:16:14,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-08-25 19:16:14,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 19:16:14,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:16:14,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 19:16:14,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-08-25 19:16:14,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 853 [2023-08-25 19:16:14,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 481 transitions, 8296 flow. Second operand has 15 states, 15 states have (on average 301.0) internal successors, (4515), 15 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:16:14,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:16:14,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 853 [2023-08-25 19:16:14,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:16:14,153 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONASSERT (60 of 61 remaining) [2023-08-25 19:16:14,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 19:16:14,153 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2023-08-25 19:16:14,155 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2023-08-25 19:16:14,156 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2023-08-25 19:16:14,157 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2023-08-25 19:16:14,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2023-08-25 19:16:14,158 INFO L445 BasicCegarLoop]: Path program histogram: [11, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:16:14,162 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:16:14,162 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:16:14,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:16:14 BasicIcfg [2023-08-25 19:16:14,164 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:16:14,165 INFO L158 Benchmark]: Toolchain (without parser) took 835597.80ms. Allocated memory was 346.0MB in the beginning and 15.1GB in the end (delta: 14.8GB). Free memory was 321.3MB in the beginning and 11.6GB in the end (delta: -11.3GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2023-08-25 19:16:14,165 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 346.0MB. Free memory is still 323.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:16:14,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.49ms. Allocated memory is still 346.0MB. Free memory was 321.3MB in the beginning and 309.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 19:16:14,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.88ms. Allocated memory is still 346.0MB. Free memory was 309.1MB in the beginning and 306.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 19:16:14,165 INFO L158 Benchmark]: Boogie Preprocessor took 23.49ms. Allocated memory is still 346.0MB. Free memory was 306.0MB in the beginning and 302.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:16:14,165 INFO L158 Benchmark]: RCFGBuilder took 555.27ms. Allocated memory is still 346.0MB. Free memory was 302.8MB in the beginning and 271.2MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 19:16:14,165 INFO L158 Benchmark]: TraceAbstraction took 834832.94ms. Allocated memory was 346.0MB in the beginning and 15.1GB in the end (delta: 14.8GB). Free memory was 270.3MB in the beginning and 11.6GB in the end (delta: -11.3GB). Peak memory consumption was 3.4GB. Max. memory is 16.0GB. [2023-08-25 19:16:14,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 346.0MB. Free memory is still 323.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 154.49ms. Allocated memory is still 346.0MB. Free memory was 321.3MB in the beginning and 309.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.88ms. Allocated memory is still 346.0MB. Free memory was 309.1MB in the beginning and 306.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.49ms. Allocated memory is still 346.0MB. Free memory was 306.0MB in the beginning and 302.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 555.27ms. Allocated memory is still 346.0MB. Free memory was 302.8MB in the beginning and 271.2MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 834832.94ms. Allocated memory was 346.0MB in the beginning and 15.1GB in the end (delta: 14.8GB). Free memory was 270.3MB in the beginning and 11.6GB in the end (delta: -11.3GB). Peak memory consumption was 3.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 385 PlacesBefore, 101 PlacesAfterwards, 404 TransitionsBefore, 99 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 8 FixpointIterations, 196 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 36 TrivialYvCompositions, 20 ConcurrentYvCompositions, 21 ChoiceCompositions, 438 TotalNumberOfCompositions, 79366 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31057, independent: 30023, independent conditional: 0, independent unconditional: 30023, dependent: 1034, dependent conditional: 0, dependent unconditional: 1034, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12811, independent: 12673, independent conditional: 0, independent unconditional: 12673, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 31057, independent: 17350, independent conditional: 0, independent unconditional: 17350, dependent: 896, dependent conditional: 0, dependent unconditional: 896, unknown: 12811, unknown conditional: 0, unknown unconditional: 12811] , Statistics on independence cache: Total cache size (in pairs): 873, Positive cache size: 799, Positive conditional cache size: 0, Positive unconditional cache size: 799, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 572 locations, 61 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: 834.6s, OverallIterations: 34, TraceHistogramMax: 5, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 151.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6995 SdHoareTripleChecker+Valid, 22.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6995 mSDsluCounter, 265 SdHoareTripleChecker+Invalid, 19.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 558 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39952 IncrementalHoareTripleChecker+Invalid, 40511 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 558 mSolverCounterUnsat, 214 mSDtfsCounter, 39952 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2012 GetRequests, 1423 SyntacticMatches, 9 SemanticMatches, 580 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5492 ImplicationChecksByTransitivity, 75.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8296occurred in iteration=33, InterpolantAutomatonStates: 290, 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: 0.4s SsaConstructionTime, 414.0s SatisfiabilityAnalysisTime, 93.8s InterpolantComputationTime, 2231 NumberOfCodeBlocks, 2207 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 2899 ConstructedInterpolants, 175 QuantifiedInterpolants, 58218 SizeOfPredicates, 266 NumberOfNonLiveVariables, 6620 ConjunctsInSsa, 546 ConjunctsInUnsatCore, 59 InterpolantComputations, 21 PerfectInterpolantSequences, 1446/1551 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown