/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:52:51,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:52:51,660 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 04:52:51,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:52:51,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:52:51,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:52:51,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:52:51,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:52:51,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:52:51,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:52:51,703 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:52:51,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:52:51,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:52:51,705 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:52:51,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:52:51,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:52:51,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:52:51,706 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:52:51,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:52:51,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:52:51,706 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:52:51,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:52:51,707 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:52:51,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:52:51,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:52:51,708 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:52:51,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:52:51,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:52:51,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:52:51,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:52:51,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:52:51,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:52:51,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:52:51,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:52:51,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:52:51,710 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:52:52,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:52:52,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:52:52,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:52:52,070 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:52:52,070 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:52:52,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-25 04:52:53,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:52:53,456 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:52:53,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-25 04:52:53,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e197ea9f/6df3f4a5edce4f89ad8b27310403a80b/FLAGbd61e43b2 [2023-08-25 04:52:53,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e197ea9f/6df3f4a5edce4f89ad8b27310403a80b [2023-08-25 04:52:53,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:52:53,477 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:52:53,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:52:53,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:52:53,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:52:53,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ce63e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53, skipping insertion in model container [2023-08-25 04:52:53,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,504 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:52:53,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:52:53,701 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:52:53,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:52:53,761 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:52:53,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53 WrapperNode [2023-08-25 04:52:53,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:52:53,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:52:53,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:52:53,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:52:53,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,834 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 256 [2023-08-25 04:52:53,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:52:53,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:52:53,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:52:53,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:52:53,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:52:53,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:52:53,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:52:53,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:52:53,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (1/1) ... [2023-08-25 04:52:53,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:52:53,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:52:53,915 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 04:52:53,938 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 04:52:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:52:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 04:52:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 04:52:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 04:52:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 04:52:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:52:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:52:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:52:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:52:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:52:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:52:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:52:53,958 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 04:52:54,080 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:52:54,087 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:52:54,546 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:52:54,557 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:52:54,557 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 04:52:54,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:52:54 BoogieIcfgContainer [2023-08-25 04:52:54,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:52:54,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:52:54,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:52:54,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:52:54,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:52:53" (1/3) ... [2023-08-25 04:52:54,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275941db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:52:54, skipping insertion in model container [2023-08-25 04:52:54,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:52:53" (2/3) ... [2023-08-25 04:52:54,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275941db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:52:54, skipping insertion in model container [2023-08-25 04:52:54,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:52:54" (3/3) ... [2023-08-25 04:52:54,568 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-08-25 04:52:54,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:52:54,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-08-25 04:52:54,584 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:52:54,735 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:52:54,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 323 transitions, 662 flow [2023-08-25 04:52:54,878 INFO L124 PetriNetUnfolderBase]: 22/321 cut-off events. [2023-08-25 04:52:54,879 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:52:54,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 321 events. 22/321 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 805 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 197. Up to 2 conditions per place. [2023-08-25 04:52:54,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 323 transitions, 662 flow [2023-08-25 04:52:54,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 312 transitions, 636 flow [2023-08-25 04:52:54,900 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:52:54,908 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 297 places, 312 transitions, 636 flow [2023-08-25 04:52:54,911 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 297 places, 312 transitions, 636 flow [2023-08-25 04:52:54,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 312 transitions, 636 flow [2023-08-25 04:52:55,006 INFO L124 PetriNetUnfolderBase]: 22/312 cut-off events. [2023-08-25 04:52:55,006 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:52:55,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 312 events. 22/312 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 804 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 197. Up to 2 conditions per place. [2023-08-25 04:52:55,022 INFO L119 LiptonReduction]: Number of co-enabled transitions 21716 [2023-08-25 04:53:02,678 INFO L134 LiptonReduction]: Checked pairs total: 82119 [2023-08-25 04:53:02,678 INFO L136 LiptonReduction]: Total number of compositions: 313 [2023-08-25 04:53:02,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:53:02,698 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;@6650ce64, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:53:02,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2023-08-25 04:53:02,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:53:02,699 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:53:02,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:53:02,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:02,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:53:02,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:02,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:02,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1230, now seen corresponding path program 1 times [2023-08-25 04:53:02,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:02,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552279123] [2023-08-25 04:53:02,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:02,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:02,795 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 04:53:02,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:02,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552279123] [2023-08-25 04:53:02,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552279123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:02,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:02,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:53:02,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468071171] [2023-08-25 04:53:02,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:02,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:53:02,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:02,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:53:02,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:53:02,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 636 [2023-08-25 04:53:02,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 208 flow. Second operand has 2 states, 2 states have (on average 311.5) internal successors, (623), 2 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:02,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:02,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 636 [2023-08-25 04:53:02,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:03,040 INFO L124 PetriNetUnfolderBase]: 738/1658 cut-off events. [2023-08-25 04:53:03,040 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-25 04:53:03,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2777 conditions, 1658 events. 738/1658 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11652 event pairs, 426 based on Foata normal form. 20/1261 useless extension candidates. Maximal degree in co-relation 2638. Up to 1076 conditions per place. [2023-08-25 04:53:03,080 INFO L140 encePairwiseOnDemand]: 622/636 looper letters, 43 selfloop transitions, 0 changer transitions 0/84 dead transitions. [2023-08-25 04:53:03,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 84 transitions, 266 flow [2023-08-25 04:53:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:53:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:53:03,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 679 transitions. [2023-08-25 04:53:03,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5338050314465409 [2023-08-25 04:53:03,097 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 679 transitions. [2023-08-25 04:53:03,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 679 transitions. [2023-08-25 04:53:03,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:03,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 679 transitions. [2023-08-25 04:53:03,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 339.5) internal successors, (679), 2 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,112 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 636.0) internal successors, (1908), 3 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,114 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 208 flow. Second operand 2 states and 679 transitions. [2023-08-25 04:53:03,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 84 transitions, 266 flow [2023-08-25 04:53:03,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:03,120 INFO L231 Difference]: Finished difference. Result has 76 places, 84 transitions, 172 flow [2023-08-25 04:53:03,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=172, PETRI_PLACES=76, PETRI_TRANSITIONS=84} [2023-08-25 04:53:03,125 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2023-08-25 04:53:03,125 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 84 transitions, 172 flow [2023-08-25 04:53:03,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 311.5) internal successors, (623), 2 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:03,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 04:53:03,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:53:03,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:03,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 38500039, now seen corresponding path program 1 times [2023-08-25 04:53:03,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:03,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850834686] [2023-08-25 04:53:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:03,188 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 04:53:03,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:03,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850834686] [2023-08-25 04:53:03,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850834686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:03,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:03,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:03,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830914795] [2023-08-25 04:53:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:03,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:03,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:03,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:03,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:03,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 04:53:03,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 84 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:03,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 04:53:03,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:03,381 INFO L124 PetriNetUnfolderBase]: 1053/2176 cut-off events. [2023-08-25 04:53:03,382 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 04:53:03,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3760 conditions, 2176 events. 1053/2176 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 14447 event pairs, 390 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 3757. Up to 1559 conditions per place. [2023-08-25 04:53:03,393 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 52 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2023-08-25 04:53:03,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 83 transitions, 279 flow [2023-08-25 04:53:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2023-08-25 04:53:03,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742138364779874 [2023-08-25 04:53:03,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 930 transitions. [2023-08-25 04:53:03,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 930 transitions. [2023-08-25 04:53:03,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:03,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 930 transitions. [2023-08-25 04:53:03,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,404 INFO L175 Difference]: Start difference. First operand has 76 places, 84 transitions, 172 flow. Second operand 3 states and 930 transitions. [2023-08-25 04:53:03,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 83 transitions, 279 flow [2023-08-25 04:53:03,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 83 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:03,406 INFO L231 Difference]: Finished difference. Result has 73 places, 80 transitions, 174 flow [2023-08-25 04:53:03,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=73, PETRI_TRANSITIONS=80} [2023-08-25 04:53:03,407 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2023-08-25 04:53:03,407 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 80 transitions, 174 flow [2023-08-25 04:53:03,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:03,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:53:03,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:53:03,409 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:03,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:03,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1644084149, now seen corresponding path program 1 times [2023-08-25 04:53:03,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:03,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481275549] [2023-08-25 04:53:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:03,451 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 04:53:03,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481275549] [2023-08-25 04:53:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481275549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:03,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:03,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:03,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164710408] [2023-08-25 04:53:03,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:03,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:03,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:03,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:03,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:03,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 04:53:03,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 80 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:03,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 04:53:03,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:03,627 INFO L124 PetriNetUnfolderBase]: 970/1964 cut-off events. [2023-08-25 04:53:03,628 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-25 04:53:03,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3434 conditions, 1964 events. 970/1964 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12557 event pairs, 336 based on Foata normal form. 0/1526 useless extension candidates. Maximal degree in co-relation 3430. Up to 1436 conditions per place. [2023-08-25 04:53:03,639 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 50 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-08-25 04:53:03,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 79 transitions, 277 flow [2023-08-25 04:53:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2023-08-25 04:53:03,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4863731656184486 [2023-08-25 04:53:03,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 928 transitions. [2023-08-25 04:53:03,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 928 transitions. [2023-08-25 04:53:03,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:03,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 928 transitions. [2023-08-25 04:53:03,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,649 INFO L175 Difference]: Start difference. First operand has 73 places, 80 transitions, 174 flow. Second operand 3 states and 928 transitions. [2023-08-25 04:53:03,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 79 transitions, 277 flow [2023-08-25 04:53:03,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 79 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:03,651 INFO L231 Difference]: Finished difference. Result has 70 places, 76 transitions, 176 flow [2023-08-25 04:53:03,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=70, PETRI_TRANSITIONS=76} [2023-08-25 04:53:03,652 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -22 predicate places. [2023-08-25 04:53:03,653 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 76 transitions, 176 flow [2023-08-25 04:53:03,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:03,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:03,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:53:03,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:03,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1879258368, now seen corresponding path program 1 times [2023-08-25 04:53:03,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:03,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859209692] [2023-08-25 04:53:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:03,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:03,702 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 04:53:03,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:03,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859209692] [2023-08-25 04:53:03,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859209692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:03,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:03,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:03,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530862130] [2023-08-25 04:53:03,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:03,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:03,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:03,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:03,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:03,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 04:53:03,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 76 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:03,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 04:53:03,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:03,943 INFO L124 PetriNetUnfolderBase]: 880/1825 cut-off events. [2023-08-25 04:53:03,944 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 04:53:03,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 1825 events. 880/1825 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 12121 event pairs, 346 based on Foata normal form. 0/1443 useless extension candidates. Maximal degree in co-relation 3166. Up to 874 conditions per place. [2023-08-25 04:53:03,955 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 61 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2023-08-25 04:53:03,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 97 transitions, 347 flow [2023-08-25 04:53:03,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 977 transitions. [2023-08-25 04:53:03,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5120545073375262 [2023-08-25 04:53:03,959 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 977 transitions. [2023-08-25 04:53:03,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 977 transitions. [2023-08-25 04:53:03,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:03,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 977 transitions. [2023-08-25 04:53:03,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,967 INFO L175 Difference]: Start difference. First operand has 70 places, 76 transitions, 176 flow. Second operand 3 states and 977 transitions. [2023-08-25 04:53:03,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 97 transitions, 347 flow [2023-08-25 04:53:03,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:03,971 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 198 flow [2023-08-25 04:53:03,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2023-08-25 04:53:03,973 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-08-25 04:53:03,973 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 198 flow [2023-08-25 04:53:03,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:03,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:03,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:03,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:53:03,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:03,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:03,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1872633678, now seen corresponding path program 1 times [2023-08-25 04:53:03,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:03,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66455143] [2023-08-25 04:53:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:04,058 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 04:53:04,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66455143] [2023-08-25 04:53:04,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66455143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:04,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:04,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:04,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613579315] [2023-08-25 04:53:04,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:04,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:04,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:04,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:04,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:04,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 636 [2023-08-25 04:53:04,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:04,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 636 [2023-08-25 04:53:04,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:04,294 INFO L124 PetriNetUnfolderBase]: 880/1807 cut-off events. [2023-08-25 04:53:04,295 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-08-25 04:53:04,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3389 conditions, 1807 events. 880/1807 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11993 event pairs, 448 based on Foata normal form. 52/1512 useless extension candidates. Maximal degree in co-relation 3382. Up to 1116 conditions per place. [2023-08-25 04:53:04,308 INFO L140 encePairwiseOnDemand]: 630/636 looper letters, 58 selfloop transitions, 6 changer transitions 0/96 dead transitions. [2023-08-25 04:53:04,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 363 flow [2023-08-25 04:53:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:04,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2023-08-25 04:53:04,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-25 04:53:04,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2023-08-25 04:53:04,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2023-08-25 04:53:04,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:04,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2023-08-25 04:53:04,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,320 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 198 flow. Second operand 3 states and 954 transitions. [2023-08-25 04:53:04,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 363 flow [2023-08-25 04:53:04,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 96 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:04,325 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 202 flow [2023-08-25 04:53:04,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2023-08-25 04:53:04,326 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2023-08-25 04:53:04,326 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 202 flow [2023-08-25 04:53:04,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:04,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:04,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:53:04,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:04,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:04,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1921078214, now seen corresponding path program 1 times [2023-08-25 04:53:04,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:04,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662759716] [2023-08-25 04:53:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:04,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:04,359 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 04:53:04,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:04,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662759716] [2023-08-25 04:53:04,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662759716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:04,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:04,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820511726] [2023-08-25 04:53:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:04,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:04,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:04,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:04,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:04,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 636 [2023-08-25 04:53:04,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:04,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 636 [2023-08-25 04:53:04,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:04,609 INFO L124 PetriNetUnfolderBase]: 1280/2573 cut-off events. [2023-08-25 04:53:04,610 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2023-08-25 04:53:04,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5082 conditions, 2573 events. 1280/2573 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 17522 event pairs, 516 based on Foata normal form. 0/2158 useless extension candidates. Maximal degree in co-relation 5075. Up to 1312 conditions per place. [2023-08-25 04:53:04,627 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 70 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2023-08-25 04:53:04,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 106 transitions, 429 flow [2023-08-25 04:53:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:04,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2023-08-25 04:53:04,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172955974842768 [2023-08-25 04:53:04,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2023-08-25 04:53:04,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2023-08-25 04:53:04,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:04,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2023-08-25 04:53:04,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,638 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 202 flow. Second operand 3 states and 987 transitions. [2023-08-25 04:53:04,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 106 transitions, 429 flow [2023-08-25 04:53:04,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 106 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:04,653 INFO L231 Difference]: Finished difference. Result has 75 places, 80 transitions, 224 flow [2023-08-25 04:53:04,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=75, PETRI_TRANSITIONS=80} [2023-08-25 04:53:04,654 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -17 predicate places. [2023-08-25 04:53:04,654 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 80 transitions, 224 flow [2023-08-25 04:53:04,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:04,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:04,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:53:04,656 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:04,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:04,656 INFO L85 PathProgramCache]: Analyzing trace with hash -400409200, now seen corresponding path program 1 times [2023-08-25 04:53:04,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:04,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994768885] [2023-08-25 04:53:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:04,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:04,685 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 04:53:04,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:04,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994768885] [2023-08-25 04:53:04,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994768885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:04,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:04,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:04,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625374132] [2023-08-25 04:53:04,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:04,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:04,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:04,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:04,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:04,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 636 [2023-08-25 04:53:04,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 80 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:04,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:04,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 636 [2023-08-25 04:53:04,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:05,040 INFO L124 PetriNetUnfolderBase]: 1934/3941 cut-off events. [2023-08-25 04:53:05,040 INFO L125 PetriNetUnfolderBase]: For 749/749 co-relation queries the response was YES. [2023-08-25 04:53:05,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7657 conditions, 3941 events. 1934/3941 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 28917 event pairs, 754 based on Foata normal form. 0/3237 useless extension candidates. Maximal degree in co-relation 7649. Up to 1846 conditions per place. [2023-08-25 04:53:05,068 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 80 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2023-08-25 04:53:05,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 115 transitions, 501 flow [2023-08-25 04:53:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2023-08-25 04:53:05,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5183438155136268 [2023-08-25 04:53:05,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2023-08-25 04:53:05,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2023-08-25 04:53:05,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:05,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2023-08-25 04:53:05,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,078 INFO L175 Difference]: Start difference. First operand has 75 places, 80 transitions, 224 flow. Second operand 3 states and 989 transitions. [2023-08-25 04:53:05,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 115 transitions, 501 flow [2023-08-25 04:53:05,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 115 transitions, 485 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:05,083 INFO L231 Difference]: Finished difference. Result has 77 places, 82 transitions, 238 flow [2023-08-25 04:53:05,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=77, PETRI_TRANSITIONS=82} [2023-08-25 04:53:05,084 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -15 predicate places. [2023-08-25 04:53:05,084 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 82 transitions, 238 flow [2023-08-25 04:53:05,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:05,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:05,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:53:05,085 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:05,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:05,086 INFO L85 PathProgramCache]: Analyzing trace with hash -774873499, now seen corresponding path program 1 times [2023-08-25 04:53:05,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901942852] [2023-08-25 04:53:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:05,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:05,110 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 04:53:05,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:05,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901942852] [2023-08-25 04:53:05,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901942852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:05,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:05,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:05,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405033050] [2023-08-25 04:53:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:05,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:05,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:05,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:05,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:05,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 636 [2023-08-25 04:53:05,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 82 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:05,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 636 [2023-08-25 04:53:05,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:05,631 INFO L124 PetriNetUnfolderBase]: 3512/6091 cut-off events. [2023-08-25 04:53:05,632 INFO L125 PetriNetUnfolderBase]: For 1344/1344 co-relation queries the response was YES. [2023-08-25 04:53:05,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13203 conditions, 6091 events. 3512/6091 cut-off events. For 1344/1344 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 40341 event pairs, 1030 based on Foata normal form. 0/5253 useless extension candidates. Maximal degree in co-relation 13194. Up to 3006 conditions per place. [2023-08-25 04:53:05,665 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 97 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-08-25 04:53:05,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 124 transitions, 573 flow [2023-08-25 04:53:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2023-08-25 04:53:05,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5136268343815513 [2023-08-25 04:53:05,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2023-08-25 04:53:05,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2023-08-25 04:53:05,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:05,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2023-08-25 04:53:05,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,674 INFO L175 Difference]: Start difference. First operand has 77 places, 82 transitions, 238 flow. Second operand 3 states and 980 transitions. [2023-08-25 04:53:05,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 124 transitions, 573 flow [2023-08-25 04:53:05,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 124 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:05,682 INFO L231 Difference]: Finished difference. Result has 74 places, 82 transitions, 254 flow [2023-08-25 04:53:05,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=74, PETRI_TRANSITIONS=82} [2023-08-25 04:53:05,683 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-08-25 04:53:05,683 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 82 transitions, 254 flow [2023-08-25 04:53:05,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:05,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:05,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:53:05,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:05,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:05,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1701665846, now seen corresponding path program 1 times [2023-08-25 04:53:05,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:05,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688854551] [2023-08-25 04:53:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:05,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:05,710 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 04:53:05,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:05,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688854551] [2023-08-25 04:53:05,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688854551] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:05,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:05,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:05,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434663553] [2023-08-25 04:53:05,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:05,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:05,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:05,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:05,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:05,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 636 [2023-08-25 04:53:05,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 82 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:05,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:05,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 636 [2023-08-25 04:53:05,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:06,226 INFO L124 PetriNetUnfolderBase]: 3837/6316 cut-off events. [2023-08-25 04:53:06,227 INFO L125 PetriNetUnfolderBase]: For 1170/1170 co-relation queries the response was YES. [2023-08-25 04:53:06,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14369 conditions, 6316 events. 3837/6316 cut-off events. For 1170/1170 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 38516 event pairs, 1063 based on Foata normal form. 0/5578 useless extension candidates. Maximal degree in co-relation 14360. Up to 3474 conditions per place. [2023-08-25 04:53:06,262 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 98 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-08-25 04:53:06,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 124 transitions, 588 flow [2023-08-25 04:53:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:06,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2023-08-25 04:53:06,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5136268343815513 [2023-08-25 04:53:06,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2023-08-25 04:53:06,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2023-08-25 04:53:06,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:06,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2023-08-25 04:53:06,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,272 INFO L175 Difference]: Start difference. First operand has 74 places, 82 transitions, 254 flow. Second operand 3 states and 980 transitions. [2023-08-25 04:53:06,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 124 transitions, 588 flow [2023-08-25 04:53:06,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 124 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:06,277 INFO L231 Difference]: Finished difference. Result has 73 places, 82 transitions, 276 flow [2023-08-25 04:53:06,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=73, PETRI_TRANSITIONS=82} [2023-08-25 04:53:06,278 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2023-08-25 04:53:06,278 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 82 transitions, 276 flow [2023-08-25 04:53:06,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:06,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:06,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 04:53:06,280 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:06,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash -980085749, now seen corresponding path program 1 times [2023-08-25 04:53:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:06,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081251870] [2023-08-25 04:53:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:06,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:53:06,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:06,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081251870] [2023-08-25 04:53:06,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081251870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:06,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:06,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:06,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824417891] [2023-08-25 04:53:06,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:06,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:06,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:06,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:06,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 04:53:06,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 82 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:06,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 04:53:06,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:06,857 INFO L124 PetriNetUnfolderBase]: 3197/5658 cut-off events. [2023-08-25 04:53:06,857 INFO L125 PetriNetUnfolderBase]: For 1327/1327 co-relation queries the response was YES. [2023-08-25 04:53:06,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13039 conditions, 5658 events. 3197/5658 cut-off events. For 1327/1327 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 37878 event pairs, 961 based on Foata normal form. 0/5085 useless extension candidates. Maximal degree in co-relation 13029. Up to 2347 conditions per place. [2023-08-25 04:53:06,894 INFO L140 encePairwiseOnDemand]: 632/636 looper letters, 78 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2023-08-25 04:53:06,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 112 transitions, 544 flow [2023-08-25 04:53:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2023-08-25 04:53:06,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131027253668763 [2023-08-25 04:53:06,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2023-08-25 04:53:06,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2023-08-25 04:53:06,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:06,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2023-08-25 04:53:06,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,904 INFO L175 Difference]: Start difference. First operand has 73 places, 82 transitions, 276 flow. Second operand 3 states and 979 transitions. [2023-08-25 04:53:06,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 112 transitions, 544 flow [2023-08-25 04:53:06,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 112 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:06,910 INFO L231 Difference]: Finished difference. Result has 77 places, 85 transitions, 310 flow [2023-08-25 04:53:06,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=77, PETRI_TRANSITIONS=85} [2023-08-25 04:53:06,910 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -15 predicate places. [2023-08-25 04:53:06,911 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 85 transitions, 310 flow [2023-08-25 04:53:06,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:06,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:06,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:06,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 04:53:06,912 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:06,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:06,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1861577740, now seen corresponding path program 1 times [2023-08-25 04:53:06,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:06,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19143443] [2023-08-25 04:53:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:06,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:07,035 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 04:53:07,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:07,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19143443] [2023-08-25 04:53:07,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19143443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:07,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:07,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:07,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165847001] [2023-08-25 04:53:07,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:07,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:07,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:07,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:07,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:07,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 04:53:07,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 85 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 297.25) internal successors, (1189), 4 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:07,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:07,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 04:53:07,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:07,729 INFO L124 PetriNetUnfolderBase]: 4182/7475 cut-off events. [2023-08-25 04:53:07,729 INFO L125 PetriNetUnfolderBase]: For 3984/3984 co-relation queries the response was YES. [2023-08-25 04:53:07,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19305 conditions, 7475 events. 4182/7475 cut-off events. For 3984/3984 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 53165 event pairs, 693 based on Foata normal form. 82/7104 useless extension candidates. Maximal degree in co-relation 19293. Up to 2914 conditions per place. [2023-08-25 04:53:07,782 INFO L140 encePairwiseOnDemand]: 624/636 looper letters, 128 selfloop transitions, 10 changer transitions 0/168 dead transitions. [2023-08-25 04:53:07,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 168 transitions, 899 flow [2023-08-25 04:53:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:07,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1284 transitions. [2023-08-25 04:53:07,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047169811320755 [2023-08-25 04:53:07,786 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1284 transitions. [2023-08-25 04:53:07,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1284 transitions. [2023-08-25 04:53:07,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:07,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1284 transitions. [2023-08-25 04:53:07,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:07,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:07,793 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:07,794 INFO L175 Difference]: Start difference. First operand has 77 places, 85 transitions, 310 flow. Second operand 4 states and 1284 transitions. [2023-08-25 04:53:07,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 168 transitions, 899 flow [2023-08-25 04:53:07,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 168 transitions, 877 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:07,814 INFO L231 Difference]: Finished difference. Result has 81 places, 95 transitions, 392 flow [2023-08-25 04:53:07,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=81, PETRI_TRANSITIONS=95} [2023-08-25 04:53:07,815 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -11 predicate places. [2023-08-25 04:53:07,815 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 95 transitions, 392 flow [2023-08-25 04:53:07,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 297.25) internal successors, (1189), 4 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:07,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:07,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:07,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:53:07,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:07,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash -899886026, now seen corresponding path program 2 times [2023-08-25 04:53:07,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:07,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798406332] [2023-08-25 04:53:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:07,952 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 04:53:07,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:07,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798406332] [2023-08-25 04:53:07,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798406332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:07,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:07,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:07,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626278851] [2023-08-25 04:53:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:07,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:07,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:07,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:07,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:07,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 04:53:07,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 95 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 296.4) internal successors, (1482), 5 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:07,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:07,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 04:53:07,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:08,744 INFO L124 PetriNetUnfolderBase]: 4788/8861 cut-off events. [2023-08-25 04:53:08,744 INFO L125 PetriNetUnfolderBase]: For 6252/6264 co-relation queries the response was YES. [2023-08-25 04:53:08,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24491 conditions, 8861 events. 4788/8861 cut-off events. For 6252/6264 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 68043 event pairs, 699 based on Foata normal form. 438/8730 useless extension candidates. Maximal degree in co-relation 24477. Up to 3660 conditions per place. [2023-08-25 04:53:08,822 INFO L140 encePairwiseOnDemand]: 622/636 looper letters, 164 selfloop transitions, 17 changer transitions 2/213 dead transitions. [2023-08-25 04:53:08,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 213 transitions, 1227 flow [2023-08-25 04:53:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1613 transitions. [2023-08-25 04:53:08,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072327044025158 [2023-08-25 04:53:08,826 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1613 transitions. [2023-08-25 04:53:08,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1613 transitions. [2023-08-25 04:53:08,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:08,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1613 transitions. [2023-08-25 04:53:08,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 322.6) internal successors, (1613), 5 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:08,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:08,835 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:08,835 INFO L175 Difference]: Start difference. First operand has 81 places, 95 transitions, 392 flow. Second operand 5 states and 1613 transitions. [2023-08-25 04:53:08,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 213 transitions, 1227 flow [2023-08-25 04:53:08,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 213 transitions, 1227 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:08,849 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 549 flow [2023-08-25 04:53:08,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=549, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2023-08-25 04:53:08,850 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -4 predicate places. [2023-08-25 04:53:08,850 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 549 flow [2023-08-25 04:53:08,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.4) internal successors, (1482), 5 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:08,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:08,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:08,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:53:08,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:08,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:08,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1839918108, now seen corresponding path program 1 times [2023-08-25 04:53:08,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:08,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784837222] [2023-08-25 04:53:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:08,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:08,931 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 04:53:08,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784837222] [2023-08-25 04:53:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784837222] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439378935] [2023-08-25 04:53:08,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:08,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:08,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:08,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:08,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 04:53:08,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:08,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:08,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 04:53:08,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:09,740 INFO L124 PetriNetUnfolderBase]: 4610/8737 cut-off events. [2023-08-25 04:53:09,740 INFO L125 PetriNetUnfolderBase]: For 10699/10711 co-relation queries the response was YES. [2023-08-25 04:53:09,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26507 conditions, 8737 events. 4610/8737 cut-off events. For 10699/10711 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 67686 event pairs, 1343 based on Foata normal form. 61/8299 useless extension candidates. Maximal degree in co-relation 26489. Up to 5149 conditions per place. [2023-08-25 04:53:09,811 INFO L140 encePairwiseOnDemand]: 634/636 looper letters, 114 selfloop transitions, 3 changer transitions 0/147 dead transitions. [2023-08-25 04:53:09,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 147 transitions, 987 flow [2023-08-25 04:53:09,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:09,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2023-08-25 04:53:09,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4989517819706499 [2023-08-25 04:53:09,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2023-08-25 04:53:09,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2023-08-25 04:53:09,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:09,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2023-08-25 04:53:09,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:09,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:09,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:09,821 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 549 flow. Second operand 3 states and 952 transitions. [2023-08-25 04:53:09,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 147 transitions, 987 flow [2023-08-25 04:53:09,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 147 transitions, 979 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:09,843 INFO L231 Difference]: Finished difference. Result has 90 places, 105 transitions, 547 flow [2023-08-25 04:53:09,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=90, PETRI_TRANSITIONS=105} [2023-08-25 04:53:09,844 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2023-08-25 04:53:09,844 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 105 transitions, 547 flow [2023-08-25 04:53:09,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:09,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:09,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:09,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 04:53:09,846 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:09,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:09,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2089313455, now seen corresponding path program 1 times [2023-08-25 04:53:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633278288] [2023-08-25 04:53:09,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:09,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:53:09,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:09,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633278288] [2023-08-25 04:53:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633278288] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:09,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:09,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:09,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634591663] [2023-08-25 04:53:09,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:09,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:09,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:09,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:09,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:09,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 04:53:09,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 105 transitions, 547 flow. Second operand has 4 states, 4 states have (on average 291.75) internal successors, (1167), 4 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:09,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:09,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 04:53:09,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:10,785 INFO L124 PetriNetUnfolderBase]: 4590/8785 cut-off events. [2023-08-25 04:53:10,786 INFO L125 PetriNetUnfolderBase]: For 10723/10752 co-relation queries the response was YES. [2023-08-25 04:53:10,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26505 conditions, 8785 events. 4590/8785 cut-off events. For 10723/10752 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 69194 event pairs, 1270 based on Foata normal form. 69/8355 useless extension candidates. Maximal degree in co-relation 26486. Up to 6785 conditions per place. [2023-08-25 04:53:10,842 INFO L140 encePairwiseOnDemand]: 630/636 looper letters, 114 selfloop transitions, 11 changer transitions 2/157 dead transitions. [2023-08-25 04:53:10,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 157 transitions, 1105 flow [2023-08-25 04:53:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:10,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:10,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1228 transitions. [2023-08-25 04:53:10,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827044025157233 [2023-08-25 04:53:10,846 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1228 transitions. [2023-08-25 04:53:10,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1228 transitions. [2023-08-25 04:53:10,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:10,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1228 transitions. [2023-08-25 04:53:10,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:10,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:10,852 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:10,852 INFO L175 Difference]: Start difference. First operand has 90 places, 105 transitions, 547 flow. Second operand 4 states and 1228 transitions. [2023-08-25 04:53:10,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 157 transitions, 1105 flow [2023-08-25 04:53:10,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 157 transitions, 1098 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:10,875 INFO L231 Difference]: Finished difference. Result has 95 places, 111 transitions, 638 flow [2023-08-25 04:53:10,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=638, PETRI_PLACES=95, PETRI_TRANSITIONS=111} [2023-08-25 04:53:10,876 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places. [2023-08-25 04:53:10,876 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 111 transitions, 638 flow [2023-08-25 04:53:10,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 291.75) internal successors, (1167), 4 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:10,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:10,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:10,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 04:53:10,877 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:10,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1618121708, now seen corresponding path program 1 times [2023-08-25 04:53:10,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:10,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73739836] [2023-08-25 04:53:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:10,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:11,000 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 04:53:11,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:11,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73739836] [2023-08-25 04:53:11,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73739836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:11,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:11,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:11,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760865790] [2023-08-25 04:53:11,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:11,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:11,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:11,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:11,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:11,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 04:53:11,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 111 transitions, 638 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:11,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:11,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 04:53:11,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:11,823 INFO L124 PetriNetUnfolderBase]: 4779/9332 cut-off events. [2023-08-25 04:53:11,823 INFO L125 PetriNetUnfolderBase]: For 12303/12357 co-relation queries the response was YES. [2023-08-25 04:53:11,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28796 conditions, 9332 events. 4779/9332 cut-off events. For 12303/12357 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 74897 event pairs, 2945 based on Foata normal form. 9/8809 useless extension candidates. Maximal degree in co-relation 28775. Up to 6825 conditions per place. [2023-08-25 04:53:11,891 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 113 selfloop transitions, 1 changer transitions 10/154 dead transitions. [2023-08-25 04:53:11,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 154 transitions, 1120 flow [2023-08-25 04:53:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:11,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1277 transitions. [2023-08-25 04:53:11,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5019654088050315 [2023-08-25 04:53:11,896 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1277 transitions. [2023-08-25 04:53:11,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1277 transitions. [2023-08-25 04:53:11,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:11,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1277 transitions. [2023-08-25 04:53:11,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.25) internal successors, (1277), 4 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:11,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:11,903 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:11,903 INFO L175 Difference]: Start difference. First operand has 95 places, 111 transitions, 638 flow. Second operand 4 states and 1277 transitions. [2023-08-25 04:53:11,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 154 transitions, 1120 flow [2023-08-25 04:53:11,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 154 transitions, 1108 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:11,929 INFO L231 Difference]: Finished difference. Result has 100 places, 111 transitions, 637 flow [2023-08-25 04:53:11,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=637, PETRI_PLACES=100, PETRI_TRANSITIONS=111} [2023-08-25 04:53:11,930 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 8 predicate places. [2023-08-25 04:53:11,930 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 111 transitions, 637 flow [2023-08-25 04:53:11,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:11,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:11,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:11,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 04:53:11,931 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:11,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:11,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1122824556, now seen corresponding path program 2 times [2023-08-25 04:53:11,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:11,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012783963] [2023-08-25 04:53:11,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:11,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:12,052 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 04:53:12,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012783963] [2023-08-25 04:53:12,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012783963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:12,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:12,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:12,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662737469] [2023-08-25 04:53:12,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:12,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:12,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:12,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:12,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 04:53:12,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 111 transitions, 637 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:12,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:12,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 04:53:12,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:12,831 INFO L124 PetriNetUnfolderBase]: 4785/9414 cut-off events. [2023-08-25 04:53:12,831 INFO L125 PetriNetUnfolderBase]: For 12330/12367 co-relation queries the response was YES. [2023-08-25 04:53:12,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29030 conditions, 9414 events. 4785/9414 cut-off events. For 12330/12367 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 76452 event pairs, 3045 based on Foata normal form. 9/8889 useless extension candidates. Maximal degree in co-relation 29006. Up to 7311 conditions per place. [2023-08-25 04:53:12,986 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 112 selfloop transitions, 2 changer transitions 10/154 dead transitions. [2023-08-25 04:53:12,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 154 transitions, 1103 flow [2023-08-25 04:53:12,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1278 transitions. [2023-08-25 04:53:12,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5023584905660378 [2023-08-25 04:53:12,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1278 transitions. [2023-08-25 04:53:12,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1278 transitions. [2023-08-25 04:53:12,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:12,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1278 transitions. [2023-08-25 04:53:12,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.5) internal successors, (1278), 4 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:12,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:12,999 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:12,999 INFO L175 Difference]: Start difference. First operand has 100 places, 111 transitions, 637 flow. Second operand 4 states and 1278 transitions. [2023-08-25 04:53:12,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 154 transitions, 1103 flow [2023-08-25 04:53:13,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 154 transitions, 1090 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 04:53:13,024 INFO L231 Difference]: Finished difference. Result has 101 places, 111 transitions, 637 flow [2023-08-25 04:53:13,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=637, PETRI_PLACES=101, PETRI_TRANSITIONS=111} [2023-08-25 04:53:13,024 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2023-08-25 04:53:13,025 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 111 transitions, 637 flow [2023-08-25 04:53:13,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:13,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:13,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:13,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 04:53:13,026 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:13,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash -925718991, now seen corresponding path program 1 times [2023-08-25 04:53:13,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:13,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198831439] [2023-08-25 04:53:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:13,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:13,230 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 04:53:13,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:13,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198831439] [2023-08-25 04:53:13,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198831439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:13,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:13,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:13,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279310304] [2023-08-25 04:53:13,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:13,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:13,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:13,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:13,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:13,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 04:53:13,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 111 transitions, 637 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:13,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:13,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 04:53:13,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:14,171 INFO L124 PetriNetUnfolderBase]: 5024/10026 cut-off events. [2023-08-25 04:53:14,172 INFO L125 PetriNetUnfolderBase]: For 13597/13638 co-relation queries the response was YES. [2023-08-25 04:53:14,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30963 conditions, 10026 events. 5024/10026 cut-off events. For 13597/13638 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 83291 event pairs, 3175 based on Foata normal form. 13/9465 useless extension candidates. Maximal degree in co-relation 30939. Up to 7126 conditions per place. [2023-08-25 04:53:14,228 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 108 selfloop transitions, 3 changer transitions 13/154 dead transitions. [2023-08-25 04:53:14,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 154 transitions, 1115 flow [2023-08-25 04:53:14,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1278 transitions. [2023-08-25 04:53:14,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5023584905660378 [2023-08-25 04:53:14,232 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1278 transitions. [2023-08-25 04:53:14,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1278 transitions. [2023-08-25 04:53:14,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:14,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1278 transitions. [2023-08-25 04:53:14,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 319.5) internal successors, (1278), 4 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:14,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:14,240 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:14,240 INFO L175 Difference]: Start difference. First operand has 101 places, 111 transitions, 637 flow. Second operand 4 states and 1278 transitions. [2023-08-25 04:53:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 154 transitions, 1115 flow [2023-08-25 04:53:14,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 154 transitions, 1108 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:14,370 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 648 flow [2023-08-25 04:53:14,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=648, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2023-08-25 04:53:14,371 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 11 predicate places. [2023-08-25 04:53:14,371 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 648 flow [2023-08-25 04:53:14,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:14,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:14,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:14,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 04:53:14,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:14,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:14,376 INFO L85 PathProgramCache]: Analyzing trace with hash 411792881, now seen corresponding path program 2 times [2023-08-25 04:53:14,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:14,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12459853] [2023-08-25 04:53:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:14,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:14,477 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 04:53:14,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:14,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12459853] [2023-08-25 04:53:14,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12459853] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:14,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:14,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:14,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368773] [2023-08-25 04:53:14,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:14,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:14,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:14,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:14,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:14,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 04:53:14,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 111 transitions, 648 flow. Second operand has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:14,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:14,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 04:53:14,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:15,424 INFO L124 PetriNetUnfolderBase]: 4937/9886 cut-off events. [2023-08-25 04:53:15,424 INFO L125 PetriNetUnfolderBase]: For 14620/14657 co-relation queries the response was YES. [2023-08-25 04:53:15,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30782 conditions, 9886 events. 4937/9886 cut-off events. For 14620/14657 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 82448 event pairs, 3349 based on Foata normal form. 9/9309 useless extension candidates. Maximal degree in co-relation 30757. Up to 7736 conditions per place. [2023-08-25 04:53:15,485 INFO L140 encePairwiseOnDemand]: 633/636 looper letters, 101 selfloop transitions, 2 changer transitions 14/147 dead transitions. [2023-08-25 04:53:15,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 147 transitions, 1058 flow [2023-08-25 04:53:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1274 transitions. [2023-08-25 04:53:15,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5007861635220126 [2023-08-25 04:53:15,488 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1274 transitions. [2023-08-25 04:53:15,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1274 transitions. [2023-08-25 04:53:15,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:15,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1274 transitions. [2023-08-25 04:53:15,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 318.5) internal successors, (1274), 4 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:15,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:15,496 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:15,496 INFO L175 Difference]: Start difference. First operand has 103 places, 111 transitions, 648 flow. Second operand 4 states and 1274 transitions. [2023-08-25 04:53:15,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 147 transitions, 1058 flow [2023-08-25 04:53:15,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 147 transitions, 1050 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:15,538 INFO L231 Difference]: Finished difference. Result has 105 places, 110 transitions, 639 flow [2023-08-25 04:53:15,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=105, PETRI_TRANSITIONS=110} [2023-08-25 04:53:15,538 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 13 predicate places. [2023-08-25 04:53:15,539 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 110 transitions, 639 flow [2023-08-25 04:53:15,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 305.5) internal successors, (1222), 4 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:15,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:15,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:15,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 04:53:15,539 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:15,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:15,540 INFO L85 PathProgramCache]: Analyzing trace with hash 382058214, now seen corresponding path program 1 times [2023-08-25 04:53:15,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:15,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497114090] [2023-08-25 04:53:15,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:15,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:15,614 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 04:53:15,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:15,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497114090] [2023-08-25 04:53:15,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497114090] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:15,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:15,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:15,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560715412] [2023-08-25 04:53:15,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:15,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:15,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:15,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:15,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:15,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 04:53:15,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 110 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:15,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:15,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 04:53:15,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:16,508 INFO L124 PetriNetUnfolderBase]: 4618/9363 cut-off events. [2023-08-25 04:53:16,508 INFO L125 PetriNetUnfolderBase]: For 14787/14824 co-relation queries the response was YES. [2023-08-25 04:53:16,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29100 conditions, 9363 events. 4618/9363 cut-off events. For 14787/14824 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 76914 event pairs, 2154 based on Foata normal form. 49/8851 useless extension candidates. Maximal degree in co-relation 29074. Up to 4194 conditions per place. [2023-08-25 04:53:16,571 INFO L140 encePairwiseOnDemand]: 629/636 looper letters, 146 selfloop transitions, 10 changer transitions 7/193 dead transitions. [2023-08-25 04:53:16,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 193 transitions, 1445 flow [2023-08-25 04:53:16,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1546 transitions. [2023-08-25 04:53:16,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861635220125786 [2023-08-25 04:53:16,576 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1546 transitions. [2023-08-25 04:53:16,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1546 transitions. [2023-08-25 04:53:16,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:16,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1546 transitions. [2023-08-25 04:53:16,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 309.2) internal successors, (1546), 5 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:16,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:16,585 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:16,585 INFO L175 Difference]: Start difference. First operand has 105 places, 110 transitions, 639 flow. Second operand 5 states and 1546 transitions. [2023-08-25 04:53:16,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 193 transitions, 1445 flow [2023-08-25 04:53:16,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 193 transitions, 1433 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:16,637 INFO L231 Difference]: Finished difference. Result has 108 places, 110 transitions, 652 flow [2023-08-25 04:53:16,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=652, PETRI_PLACES=108, PETRI_TRANSITIONS=110} [2023-08-25 04:53:16,637 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 16 predicate places. [2023-08-25 04:53:16,637 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 110 transitions, 652 flow [2023-08-25 04:53:16,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:16,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:16,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:16,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 04:53:16,638 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:16,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1309489339, now seen corresponding path program 1 times [2023-08-25 04:53:16,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:16,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47392157] [2023-08-25 04:53:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:16,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:16,740 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 04:53:16,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:16,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47392157] [2023-08-25 04:53:16,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47392157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:16,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:16,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813429722] [2023-08-25 04:53:16,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:16,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:16,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:16,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:16,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 04:53:16,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 110 transitions, 652 flow. Second operand has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:16,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:16,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 04:53:16,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:17,588 INFO L124 PetriNetUnfolderBase]: 4621/9342 cut-off events. [2023-08-25 04:53:17,589 INFO L125 PetriNetUnfolderBase]: For 16461/16489 co-relation queries the response was YES. [2023-08-25 04:53:17,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30045 conditions, 9342 events. 4621/9342 cut-off events. For 16461/16489 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 76215 event pairs, 1992 based on Foata normal form. 12/9003 useless extension candidates. Maximal degree in co-relation 30018. Up to 3507 conditions per place. [2023-08-25 04:53:17,656 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 129 selfloop transitions, 13 changer transitions 1/173 dead transitions. [2023-08-25 04:53:17,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 173 transitions, 1277 flow [2023-08-25 04:53:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1293 transitions. [2023-08-25 04:53:17,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5082547169811321 [2023-08-25 04:53:17,661 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1293 transitions. [2023-08-25 04:53:17,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1293 transitions. [2023-08-25 04:53:17,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:17,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1293 transitions. [2023-08-25 04:53:17,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.25) internal successors, (1293), 4 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:17,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:17,667 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:17,668 INFO L175 Difference]: Start difference. First operand has 108 places, 110 transitions, 652 flow. Second operand 4 states and 1293 transitions. [2023-08-25 04:53:17,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 173 transitions, 1277 flow [2023-08-25 04:53:17,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 173 transitions, 1275 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:17,718 INFO L231 Difference]: Finished difference. Result has 112 places, 114 transitions, 721 flow [2023-08-25 04:53:17,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=721, PETRI_PLACES=112, PETRI_TRANSITIONS=114} [2023-08-25 04:53:17,719 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 20 predicate places. [2023-08-25 04:53:17,719 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 114 transitions, 721 flow [2023-08-25 04:53:17,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:17,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:17,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:17,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 04:53:17,720 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:17,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash -850784588, now seen corresponding path program 2 times [2023-08-25 04:53:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:17,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36882973] [2023-08-25 04:53:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:17,795 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 04:53:17,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:17,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36882973] [2023-08-25 04:53:17,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36882973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:17,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:17,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:17,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227585879] [2023-08-25 04:53:17,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:17,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:17,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:17,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:17,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 04:53:17,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 114 transitions, 721 flow. Second operand has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:17,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:17,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 04:53:17,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:18,756 INFO L124 PetriNetUnfolderBase]: 4762/9869 cut-off events. [2023-08-25 04:53:18,756 INFO L125 PetriNetUnfolderBase]: For 17015/17048 co-relation queries the response was YES. [2023-08-25 04:53:18,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31990 conditions, 9869 events. 4762/9869 cut-off events. For 17015/17048 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 83025 event pairs, 993 based on Foata normal form. 27/9488 useless extension candidates. Maximal degree in co-relation 31961. Up to 3177 conditions per place. [2023-08-25 04:53:18,824 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 134 selfloop transitions, 16 changer transitions 3/183 dead transitions. [2023-08-25 04:53:18,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 183 transitions, 1466 flow [2023-08-25 04:53:18,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1240 transitions. [2023-08-25 04:53:18,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742138364779874 [2023-08-25 04:53:18,828 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1240 transitions. [2023-08-25 04:53:18,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1240 transitions. [2023-08-25 04:53:18,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:18,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1240 transitions. [2023-08-25 04:53:18,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:18,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:18,835 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:18,835 INFO L175 Difference]: Start difference. First operand has 112 places, 114 transitions, 721 flow. Second operand 4 states and 1240 transitions. [2023-08-25 04:53:18,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 183 transitions, 1466 flow [2023-08-25 04:53:18,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 183 transitions, 1432 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:18,890 INFO L231 Difference]: Finished difference. Result has 116 places, 115 transitions, 773 flow [2023-08-25 04:53:18,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=773, PETRI_PLACES=116, PETRI_TRANSITIONS=115} [2023-08-25 04:53:18,891 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2023-08-25 04:53:18,891 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 115 transitions, 773 flow [2023-08-25 04:53:18,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 292.25) internal successors, (1169), 4 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:18,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:18,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:18,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 04:53:18,892 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:18,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1128239340, now seen corresponding path program 1 times [2023-08-25 04:53:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:18,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014332963] [2023-08-25 04:53:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:18,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:18,922 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 04:53:18,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:18,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014332963] [2023-08-25 04:53:18,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014332963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:18,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:18,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:18,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472766588] [2023-08-25 04:53:18,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:18,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:18,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:18,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:18,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:18,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 04:53:18,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 115 transitions, 773 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:18,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:18,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 04:53:18,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:19,618 INFO L124 PetriNetUnfolderBase]: 3408/7082 cut-off events. [2023-08-25 04:53:19,618 INFO L125 PetriNetUnfolderBase]: For 16104/16132 co-relation queries the response was YES. [2023-08-25 04:53:19,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24151 conditions, 7082 events. 3408/7082 cut-off events. For 16104/16132 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 54918 event pairs, 1703 based on Foata normal form. 2/6917 useless extension candidates. Maximal degree in co-relation 24121. Up to 3371 conditions per place. [2023-08-25 04:53:19,735 INFO L140 encePairwiseOnDemand]: 631/636 looper letters, 104 selfloop transitions, 10 changer transitions 0/144 dead transitions. [2023-08-25 04:53:19,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 144 transitions, 1185 flow [2023-08-25 04:53:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2023-08-25 04:53:19,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125786163522013 [2023-08-25 04:53:19,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2023-08-25 04:53:19,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2023-08-25 04:53:19,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:19,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2023-08-25 04:53:19,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:19,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:19,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:19,743 INFO L175 Difference]: Start difference. First operand has 116 places, 115 transitions, 773 flow. Second operand 3 states and 978 transitions. [2023-08-25 04:53:19,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 144 transitions, 1185 flow [2023-08-25 04:53:19,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 144 transitions, 1164 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:19,781 INFO L231 Difference]: Finished difference. Result has 116 places, 112 transitions, 765 flow [2023-08-25 04:53:19,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=116, PETRI_TRANSITIONS=112} [2023-08-25 04:53:19,781 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2023-08-25 04:53:19,781 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 112 transitions, 765 flow [2023-08-25 04:53:19,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:19,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:19,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:19,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 04:53:19,782 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:19,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:19,782 INFO L85 PathProgramCache]: Analyzing trace with hash 956280335, now seen corresponding path program 1 times [2023-08-25 04:53:19,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:19,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186212742] [2023-08-25 04:53:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:19,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:19,811 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 04:53:19,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:19,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186212742] [2023-08-25 04:53:19,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186212742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:19,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:19,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:19,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958464583] [2023-08-25 04:53:19,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:19,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:19,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:19,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:19,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 636 [2023-08-25 04:53:19,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 112 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:19,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:19,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 636 [2023-08-25 04:53:19,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:20,289 INFO L124 PetriNetUnfolderBase]: 2660/5725 cut-off events. [2023-08-25 04:53:20,289 INFO L125 PetriNetUnfolderBase]: For 13277/13295 co-relation queries the response was YES. [2023-08-25 04:53:20,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19973 conditions, 5725 events. 2660/5725 cut-off events. For 13277/13295 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 42377 event pairs, 1646 based on Foata normal form. 114/5808 useless extension candidates. Maximal degree in co-relation 19944. Up to 3356 conditions per place. [2023-08-25 04:53:20,324 INFO L140 encePairwiseOnDemand]: 631/636 looper letters, 98 selfloop transitions, 8 changer transitions 0/136 dead transitions. [2023-08-25 04:53:20,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 136 transitions, 1137 flow [2023-08-25 04:53:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:20,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:20,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2023-08-25 04:53:20,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110062893081762 [2023-08-25 04:53:20,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 975 transitions. [2023-08-25 04:53:20,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 975 transitions. [2023-08-25 04:53:20,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:20,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 975 transitions. [2023-08-25 04:53:20,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,331 INFO L175 Difference]: Start difference. First operand has 116 places, 112 transitions, 765 flow. Second operand 3 states and 975 transitions. [2023-08-25 04:53:20,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 136 transitions, 1137 flow [2023-08-25 04:53:20,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 136 transitions, 1085 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-25 04:53:20,367 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 762 flow [2023-08-25 04:53:20,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2023-08-25 04:53:20,367 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2023-08-25 04:53:20,367 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 762 flow [2023-08-25 04:53:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:20,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:20,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 04:53:20,368 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:20,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1439757066, now seen corresponding path program 1 times [2023-08-25 04:53:20,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:20,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566955762] [2023-08-25 04:53:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:20,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:20,399 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 04:53:20,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566955762] [2023-08-25 04:53:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566955762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:20,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:20,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:20,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214021057] [2023-08-25 04:53:20,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:20,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:20,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:20,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 636 [2023-08-25 04:53:20,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:20,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 636 [2023-08-25 04:53:20,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:20,871 INFO L124 PetriNetUnfolderBase]: 2484/5157 cut-off events. [2023-08-25 04:53:20,871 INFO L125 PetriNetUnfolderBase]: For 12338/12364 co-relation queries the response was YES. [2023-08-25 04:53:20,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18119 conditions, 5157 events. 2484/5157 cut-off events. For 12338/12364 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 36962 event pairs, 1645 based on Foata normal form. 40/5077 useless extension candidates. Maximal degree in co-relation 18090. Up to 3700 conditions per place. [2023-08-25 04:53:20,900 INFO L140 encePairwiseOnDemand]: 630/636 looper letters, 102 selfloop transitions, 3 changer transitions 17/152 dead transitions. [2023-08-25 04:53:20,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 152 transitions, 1297 flow [2023-08-25 04:53:20,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:20,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2023-08-25 04:53:20,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131027253668763 [2023-08-25 04:53:20,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2023-08-25 04:53:20,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2023-08-25 04:53:20,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:20,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2023-08-25 04:53:20,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 636.0) internal successors, (2544), 4 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,907 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 762 flow. Second operand 3 states and 979 transitions. [2023-08-25 04:53:20,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 152 transitions, 1297 flow [2023-08-25 04:53:20,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 152 transitions, 1247 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:20,933 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 744 flow [2023-08-25 04:53:20,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2023-08-25 04:53:20,934 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 27 predicate places. [2023-08-25 04:53:20,934 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 744 flow [2023-08-25 04:53:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:20,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:20,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 04:53:20,935 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:20,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 722422972, now seen corresponding path program 1 times [2023-08-25 04:53:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:20,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324214345] [2023-08-25 04:53:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:20,994 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 04:53:20,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:20,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324214345] [2023-08-25 04:53:20,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324214345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:20,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:20,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:20,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902670547] [2023-08-25 04:53:20,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:20,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:20,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:20,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:20,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:20,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 636 [2023-08-25 04:53:20,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 744 flow. Second operand has 4 states, 4 states have (on average 302.0) internal successors, (1208), 4 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:20,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 636 [2023-08-25 04:53:20,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:21,565 INFO L124 PetriNetUnfolderBase]: 2488/5169 cut-off events. [2023-08-25 04:53:21,565 INFO L125 PetriNetUnfolderBase]: For 10683/10705 co-relation queries the response was YES. [2023-08-25 04:53:21,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17579 conditions, 5169 events. 2488/5169 cut-off events. For 10683/10705 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 37458 event pairs, 697 based on Foata normal form. 74/5130 useless extension candidates. Maximal degree in co-relation 17549. Up to 2896 conditions per place. [2023-08-25 04:53:21,601 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 131 selfloop transitions, 9 changer transitions 2/172 dead transitions. [2023-08-25 04:53:21,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 172 transitions, 1391 flow [2023-08-25 04:53:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1275 transitions. [2023-08-25 04:53:21,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011792452830188 [2023-08-25 04:53:21,604 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1275 transitions. [2023-08-25 04:53:21,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1275 transitions. [2023-08-25 04:53:21,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:21,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1275 transitions. [2023-08-25 04:53:21,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 318.75) internal successors, (1275), 4 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:21,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:21,608 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:21,608 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 744 flow. Second operand 4 states and 1275 transitions. [2023-08-25 04:53:21,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 172 transitions, 1391 flow [2023-08-25 04:53:21,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 172 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:21,640 INFO L231 Difference]: Finished difference. Result has 124 places, 117 transitions, 817 flow [2023-08-25 04:53:21,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=817, PETRI_PLACES=124, PETRI_TRANSITIONS=117} [2023-08-25 04:53:21,641 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 32 predicate places. [2023-08-25 04:53:21,641 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 117 transitions, 817 flow [2023-08-25 04:53:21,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.0) internal successors, (1208), 4 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:21,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:21,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:21,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 04:53:21,642 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:21,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash -669167336, now seen corresponding path program 1 times [2023-08-25 04:53:21,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:21,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384541884] [2023-08-25 04:53:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:21,772 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 04:53:21,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:21,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384541884] [2023-08-25 04:53:21,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384541884] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:21,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:21,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:21,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263868473] [2023-08-25 04:53:21,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:21,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:21,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:21,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:21,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:21,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 04:53:21,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 817 flow. Second operand has 5 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:21,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:21,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 04:53:21,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:22,265 INFO L124 PetriNetUnfolderBase]: 2199/4568 cut-off events. [2023-08-25 04:53:22,265 INFO L125 PetriNetUnfolderBase]: For 11154/11180 co-relation queries the response was YES. [2023-08-25 04:53:22,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16178 conditions, 4568 events. 2199/4568 cut-off events. For 11154/11180 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 31929 event pairs, 761 based on Foata normal form. 44/4512 useless extension candidates. Maximal degree in co-relation 16146. Up to 2495 conditions per place. [2023-08-25 04:53:22,292 INFO L140 encePairwiseOnDemand]: 620/636 looper letters, 115 selfloop transitions, 16 changer transitions 28/189 dead transitions. [2023-08-25 04:53:22,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 189 transitions, 1642 flow [2023-08-25 04:53:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:22,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1542 transitions. [2023-08-25 04:53:22,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4849056603773585 [2023-08-25 04:53:22,295 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1542 transitions. [2023-08-25 04:53:22,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1542 transitions. [2023-08-25 04:53:22,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:22,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1542 transitions. [2023-08-25 04:53:22,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 308.4) internal successors, (1542), 5 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:22,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:22,300 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:22,300 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 817 flow. Second operand 5 states and 1542 transitions. [2023-08-25 04:53:22,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 189 transitions, 1642 flow [2023-08-25 04:53:22,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 189 transitions, 1642 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:22,321 INFO L231 Difference]: Finished difference. Result has 131 places, 121 transitions, 944 flow [2023-08-25 04:53:22,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=944, PETRI_PLACES=131, PETRI_TRANSITIONS=121} [2023-08-25 04:53:22,322 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2023-08-25 04:53:22,322 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 121 transitions, 944 flow [2023-08-25 04:53:22,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:22,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:22,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:22,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 04:53:22,322 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:22,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1626998342, now seen corresponding path program 1 times [2023-08-25 04:53:22,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:22,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072609694] [2023-08-25 04:53:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:22,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:22,459 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 04:53:22,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:22,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072609694] [2023-08-25 04:53:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072609694] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:22,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:22,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 04:53:22,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80694988] [2023-08-25 04:53:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:22,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:22,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:22,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:22,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 636 [2023-08-25 04:53:22,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 121 transitions, 944 flow. Second operand has 6 states, 6 states have (on average 287.1666666666667) internal successors, (1723), 6 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:22,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:22,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 636 [2023-08-25 04:53:22,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:23,002 INFO L124 PetriNetUnfolderBase]: 1995/4260 cut-off events. [2023-08-25 04:53:23,002 INFO L125 PetriNetUnfolderBase]: For 12684/12705 co-relation queries the response was YES. [2023-08-25 04:53:23,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15212 conditions, 4260 events. 1995/4260 cut-off events. For 12684/12705 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 29834 event pairs, 672 based on Foata normal form. 66/4230 useless extension candidates. Maximal degree in co-relation 15176. Up to 3173 conditions per place. [2023-08-25 04:53:23,027 INFO L140 encePairwiseOnDemand]: 621/636 looper letters, 107 selfloop transitions, 17 changer transitions 17/171 dead transitions. [2023-08-25 04:53:23,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 171 transitions, 1573 flow [2023-08-25 04:53:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1798 transitions. [2023-08-25 04:53:23,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47117400419287214 [2023-08-25 04:53:23,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1798 transitions. [2023-08-25 04:53:23,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1798 transitions. [2023-08-25 04:53:23,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:23,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1798 transitions. [2023-08-25 04:53:23,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 299.6666666666667) internal successors, (1798), 6 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,035 INFO L175 Difference]: Start difference. First operand has 131 places, 121 transitions, 944 flow. Second operand 6 states and 1798 transitions. [2023-08-25 04:53:23,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 171 transitions, 1573 flow [2023-08-25 04:53:23,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 171 transitions, 1554 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:23,057 INFO L231 Difference]: Finished difference. Result has 138 places, 127 transitions, 1078 flow [2023-08-25 04:53:23,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=138, PETRI_TRANSITIONS=127} [2023-08-25 04:53:23,057 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 46 predicate places. [2023-08-25 04:53:23,057 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 127 transitions, 1078 flow [2023-08-25 04:53:23,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.1666666666667) internal successors, (1723), 6 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:23,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:23,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 04:53:23,058 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:23,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1631758923, now seen corresponding path program 1 times [2023-08-25 04:53:23,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:23,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921396500] [2023-08-25 04:53:23,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:23,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:23,541 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 04:53:23,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:23,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921396500] [2023-08-25 04:53:23,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921396500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:23,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:23,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:23,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646775912] [2023-08-25 04:53:23,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:23,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:23,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:23,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:23,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 04:53:23,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 1078 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:23,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 04:53:23,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:24,023 INFO L124 PetriNetUnfolderBase]: 1923/4053 cut-off events. [2023-08-25 04:53:24,023 INFO L125 PetriNetUnfolderBase]: For 12775/12800 co-relation queries the response was YES. [2023-08-25 04:53:24,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15019 conditions, 4053 events. 1923/4053 cut-off events. For 12775/12800 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 27724 event pairs, 606 based on Foata normal form. 11/3959 useless extension candidates. Maximal degree in co-relation 14979. Up to 1996 conditions per place. [2023-08-25 04:53:24,047 INFO L140 encePairwiseOnDemand]: 626/636 looper letters, 139 selfloop transitions, 15 changer transitions 18/202 dead transitions. [2023-08-25 04:53:24,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 202 transitions, 1892 flow [2023-08-25 04:53:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1565 transitions. [2023-08-25 04:53:24,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4921383647798742 [2023-08-25 04:53:24,051 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1565 transitions. [2023-08-25 04:53:24,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1565 transitions. [2023-08-25 04:53:24,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:24,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1565 transitions. [2023-08-25 04:53:24,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:24,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:24,055 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:24,055 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 1078 flow. Second operand 5 states and 1565 transitions. [2023-08-25 04:53:24,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 202 transitions, 1892 flow [2023-08-25 04:53:24,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 202 transitions, 1890 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:24,080 INFO L231 Difference]: Finished difference. Result has 144 places, 133 transitions, 1168 flow [2023-08-25 04:53:24,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1168, PETRI_PLACES=144, PETRI_TRANSITIONS=133} [2023-08-25 04:53:24,080 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 52 predicate places. [2023-08-25 04:53:24,080 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 133 transitions, 1168 flow [2023-08-25 04:53:24,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:24,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:24,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:24,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 04:53:24,081 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:24,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1642844441, now seen corresponding path program 2 times [2023-08-25 04:53:24,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:24,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870235590] [2023-08-25 04:53:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:24,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:24,349 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 04:53:24,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:24,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870235590] [2023-08-25 04:53:24,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870235590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:24,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:24,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:24,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516650957] [2023-08-25 04:53:24,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:24,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:24,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:24,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:24,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:24,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 636 [2023-08-25 04:53:24,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 1168 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:24,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:24,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 636 [2023-08-25 04:53:24,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:24,965 INFO L124 PetriNetUnfolderBase]: 1893/3994 cut-off events. [2023-08-25 04:53:24,965 INFO L125 PetriNetUnfolderBase]: For 13718/13762 co-relation queries the response was YES. [2023-08-25 04:53:24,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15726 conditions, 3994 events. 1893/3994 cut-off events. For 13718/13762 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 27374 event pairs, 600 based on Foata normal form. 26/3983 useless extension candidates. Maximal degree in co-relation 15683. Up to 2084 conditions per place. [2023-08-25 04:53:25,008 INFO L140 encePairwiseOnDemand]: 626/636 looper letters, 125 selfloop transitions, 12 changer transitions 38/203 dead transitions. [2023-08-25 04:53:25,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 203 transitions, 1985 flow [2023-08-25 04:53:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1565 transitions. [2023-08-25 04:53:25,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4921383647798742 [2023-08-25 04:53:25,011 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1565 transitions. [2023-08-25 04:53:25,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1565 transitions. [2023-08-25 04:53:25,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:25,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1565 transitions. [2023-08-25 04:53:25,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,016 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,016 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 1168 flow. Second operand 5 states and 1565 transitions. [2023-08-25 04:53:25,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 203 transitions, 1985 flow [2023-08-25 04:53:25,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 203 transitions, 1981 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:25,055 INFO L231 Difference]: Finished difference. Result has 147 places, 116 transitions, 976 flow [2023-08-25 04:53:25,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=976, PETRI_PLACES=147, PETRI_TRANSITIONS=116} [2023-08-25 04:53:25,056 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 55 predicate places. [2023-08-25 04:53:25,056 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 116 transitions, 976 flow [2023-08-25 04:53:25,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:25,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:25,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 04:53:25,057 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:25,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:25,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1675603500, now seen corresponding path program 2 times [2023-08-25 04:53:25,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:25,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630855220] [2023-08-25 04:53:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:25,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:25,191 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 04:53:25,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:25,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630855220] [2023-08-25 04:53:25,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630855220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:25,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:25,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 04:53:25,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502289716] [2023-08-25 04:53:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:25,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:25,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:25,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:25,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 636 [2023-08-25 04:53:25,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 116 transitions, 976 flow. Second operand has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:25,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 636 [2023-08-25 04:53:25,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:25,660 INFO L124 PetriNetUnfolderBase]: 1440/3083 cut-off events. [2023-08-25 04:53:25,660 INFO L125 PetriNetUnfolderBase]: For 10800/10811 co-relation queries the response was YES. [2023-08-25 04:53:25,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11875 conditions, 3083 events. 1440/3083 cut-off events. For 10800/10811 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 20148 event pairs, 256 based on Foata normal form. 34/3097 useless extension candidates. Maximal degree in co-relation 11831. Up to 1942 conditions per place. [2023-08-25 04:53:25,689 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 105 selfloop transitions, 10 changer transitions 5/148 dead transitions. [2023-08-25 04:53:25,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 148 transitions, 1347 flow [2023-08-25 04:53:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:25,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1805 transitions. [2023-08-25 04:53:25,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4730083857442348 [2023-08-25 04:53:25,692 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1805 transitions. [2023-08-25 04:53:25,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1805 transitions. [2023-08-25 04:53:25,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:25,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1805 transitions. [2023-08-25 04:53:25,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 300.8333333333333) internal successors, (1805), 6 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,698 INFO L175 Difference]: Start difference. First operand has 147 places, 116 transitions, 976 flow. Second operand 6 states and 1805 transitions. [2023-08-25 04:53:25,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 148 transitions, 1347 flow [2023-08-25 04:53:25,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 148 transitions, 1280 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-08-25 04:53:25,719 INFO L231 Difference]: Finished difference. Result has 141 places, 110 transitions, 836 flow [2023-08-25 04:53:25,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=141, PETRI_TRANSITIONS=110} [2023-08-25 04:53:25,720 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 49 predicate places. [2023-08-25 04:53:25,720 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 110 transitions, 836 flow [2023-08-25 04:53:25,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:25,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:25,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 04:53:25,721 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:25,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:25,721 INFO L85 PathProgramCache]: Analyzing trace with hash -923783739, now seen corresponding path program 1 times [2023-08-25 04:53:25,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:25,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550999450] [2023-08-25 04:53:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:25,801 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 04:53:25,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:25,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550999450] [2023-08-25 04:53:25,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550999450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:25,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:25,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:25,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576524809] [2023-08-25 04:53:25,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:25,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:25,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:25,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:25,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:25,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 04:53:25,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 110 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:25,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:25,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 04:53:25,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:26,247 INFO L124 PetriNetUnfolderBase]: 1331/2864 cut-off events. [2023-08-25 04:53:26,247 INFO L125 PetriNetUnfolderBase]: For 8057/8087 co-relation queries the response was YES. [2023-08-25 04:53:26,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10810 conditions, 2864 events. 1331/2864 cut-off events. For 8057/8087 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 18616 event pairs, 691 based on Foata normal form. 36/2884 useless extension candidates. Maximal degree in co-relation 10768. Up to 1655 conditions per place. [2023-08-25 04:53:26,303 INFO L140 encePairwiseOnDemand]: 629/636 looper letters, 109 selfloop transitions, 5 changer transitions 24/166 dead transitions. [2023-08-25 04:53:26,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 166 transitions, 1471 flow [2023-08-25 04:53:26,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1268 transitions. [2023-08-25 04:53:26,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49842767295597484 [2023-08-25 04:53:26,305 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1268 transitions. [2023-08-25 04:53:26,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1268 transitions. [2023-08-25 04:53:26,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:26,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1268 transitions. [2023-08-25 04:53:26,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,308 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,308 INFO L175 Difference]: Start difference. First operand has 141 places, 110 transitions, 836 flow. Second operand 4 states and 1268 transitions. [2023-08-25 04:53:26,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 166 transitions, 1471 flow [2023-08-25 04:53:26,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 166 transitions, 1463 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:26,323 INFO L231 Difference]: Finished difference. Result has 143 places, 109 transitions, 833 flow [2023-08-25 04:53:26,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=833, PETRI_PLACES=143, PETRI_TRANSITIONS=109} [2023-08-25 04:53:26,323 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 51 predicate places. [2023-08-25 04:53:26,323 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 109 transitions, 833 flow [2023-08-25 04:53:26,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:26,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:26,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 04:53:26,324 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:26,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash -221060767, now seen corresponding path program 2 times [2023-08-25 04:53:26,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:26,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448819087] [2023-08-25 04:53:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:26,388 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 04:53:26,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:26,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448819087] [2023-08-25 04:53:26,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448819087] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:26,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:26,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:26,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237710723] [2023-08-25 04:53:26,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:26,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:26,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:26,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:26,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:26,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 04:53:26,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 109 transitions, 833 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:26,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 04:53:26,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:26,744 INFO L124 PetriNetUnfolderBase]: 1256/2783 cut-off events. [2023-08-25 04:53:26,744 INFO L125 PetriNetUnfolderBase]: For 8442/8459 co-relation queries the response was YES. [2023-08-25 04:53:26,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10565 conditions, 2783 events. 1256/2783 cut-off events. For 8442/8459 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 18095 event pairs, 361 based on Foata normal form. 32/2799 useless extension candidates. Maximal degree in co-relation 10522. Up to 1673 conditions per place. [2023-08-25 04:53:26,764 INFO L140 encePairwiseOnDemand]: 629/636 looper letters, 113 selfloop transitions, 15 changer transitions 0/156 dead transitions. [2023-08-25 04:53:26,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 1404 flow [2023-08-25 04:53:26,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1559 transitions. [2023-08-25 04:53:26,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.490251572327044 [2023-08-25 04:53:26,767 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1559 transitions. [2023-08-25 04:53:26,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1559 transitions. [2023-08-25 04:53:26,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:26,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1559 transitions. [2023-08-25 04:53:26,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 311.8) internal successors, (1559), 5 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,770 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,771 INFO L175 Difference]: Start difference. First operand has 143 places, 109 transitions, 833 flow. Second operand 5 states and 1559 transitions. [2023-08-25 04:53:26,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 1404 flow [2023-08-25 04:53:26,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 156 transitions, 1402 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:26,789 INFO L231 Difference]: Finished difference. Result has 150 places, 117 transitions, 961 flow [2023-08-25 04:53:26,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=961, PETRI_PLACES=150, PETRI_TRANSITIONS=117} [2023-08-25 04:53:26,790 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 58 predicate places. [2023-08-25 04:53:26,790 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 117 transitions, 961 flow [2023-08-25 04:53:26,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:26,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:26,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 04:53:26,790 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:26,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:26,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1902176649, now seen corresponding path program 3 times [2023-08-25 04:53:26,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:26,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465057383] [2023-08-25 04:53:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:26,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:26,853 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 04:53:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465057383] [2023-08-25 04:53:26,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465057383] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:26,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:26,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:26,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004463119] [2023-08-25 04:53:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:26,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:26,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:26,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:26,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:26,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 04:53:26,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 117 transitions, 961 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:26,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:26,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 04:53:26,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:27,254 INFO L124 PetriNetUnfolderBase]: 1130/2523 cut-off events. [2023-08-25 04:53:27,254 INFO L125 PetriNetUnfolderBase]: For 9573/9600 co-relation queries the response was YES. [2023-08-25 04:53:27,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9959 conditions, 2523 events. 1130/2523 cut-off events. For 9573/9600 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 16035 event pairs, 613 based on Foata normal form. 40/2549 useless extension candidates. Maximal degree in co-relation 9913. Up to 1667 conditions per place. [2023-08-25 04:53:27,280 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 114 selfloop transitions, 12 changer transitions 5/159 dead transitions. [2023-08-25 04:53:27,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 159 transitions, 1509 flow [2023-08-25 04:53:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:27,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:27,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1260 transitions. [2023-08-25 04:53:27,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49528301886792453 [2023-08-25 04:53:27,282 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1260 transitions. [2023-08-25 04:53:27,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1260 transitions. [2023-08-25 04:53:27,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:27,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1260 transitions. [2023-08-25 04:53:27,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,286 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,286 INFO L175 Difference]: Start difference. First operand has 150 places, 117 transitions, 961 flow. Second operand 4 states and 1260 transitions. [2023-08-25 04:53:27,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 159 transitions, 1509 flow [2023-08-25 04:53:27,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 159 transitions, 1495 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:27,314 INFO L231 Difference]: Finished difference. Result has 155 places, 119 transitions, 1027 flow [2023-08-25 04:53:27,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1027, PETRI_PLACES=155, PETRI_TRANSITIONS=119} [2023-08-25 04:53:27,315 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 63 predicate places. [2023-08-25 04:53:27,315 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 119 transitions, 1027 flow [2023-08-25 04:53:27,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:27,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:27,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-25 04:53:27,316 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:27,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash -176018788, now seen corresponding path program 1 times [2023-08-25 04:53:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:27,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106592090] [2023-08-25 04:53:27,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:27,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:27,399 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 04:53:27,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:27,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106592090] [2023-08-25 04:53:27,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106592090] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:27,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:27,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:27,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296884021] [2023-08-25 04:53:27,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:27,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:27,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:27,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:27,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:27,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 04:53:27,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 119 transitions, 1027 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:27,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 04:53:27,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:27,876 INFO L124 PetriNetUnfolderBase]: 1122/2569 cut-off events. [2023-08-25 04:53:27,876 INFO L125 PetriNetUnfolderBase]: For 10243/10260 co-relation queries the response was YES. [2023-08-25 04:53:27,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10260 conditions, 2569 events. 1122/2569 cut-off events. For 10243/10260 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 16561 event pairs, 270 based on Foata normal form. 42/2597 useless extension candidates. Maximal degree in co-relation 10211. Up to 1365 conditions per place. [2023-08-25 04:53:27,902 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 132 selfloop transitions, 19 changer transitions 5/184 dead transitions. [2023-08-25 04:53:27,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 184 transitions, 1785 flow [2023-08-25 04:53:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2129 transitions. [2023-08-25 04:53:27,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47821203953279423 [2023-08-25 04:53:27,906 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2129 transitions. [2023-08-25 04:53:27,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2129 transitions. [2023-08-25 04:53:27,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:27,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2129 transitions. [2023-08-25 04:53:27,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.14285714285717) internal successors, (2129), 7 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,915 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,915 INFO L175 Difference]: Start difference. First operand has 155 places, 119 transitions, 1027 flow. Second operand 7 states and 2129 transitions. [2023-08-25 04:53:27,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 184 transitions, 1785 flow [2023-08-25 04:53:27,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 184 transitions, 1761 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:27,948 INFO L231 Difference]: Finished difference. Result has 161 places, 128 transitions, 1124 flow [2023-08-25 04:53:27,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1124, PETRI_PLACES=161, PETRI_TRANSITIONS=128} [2023-08-25 04:53:27,949 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 69 predicate places. [2023-08-25 04:53:27,949 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 128 transitions, 1124 flow [2023-08-25 04:53:27,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:27,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:27,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:27,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 04:53:27,950 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:27,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:27,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2001258800, now seen corresponding path program 2 times [2023-08-25 04:53:27,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:27,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554422825] [2023-08-25 04:53:27,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:27,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:28,061 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 04:53:28,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:28,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554422825] [2023-08-25 04:53:28,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554422825] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:28,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:28,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:28,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794336110] [2023-08-25 04:53:28,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:28,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:28,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:28,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:28,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:28,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 04:53:28,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 128 transitions, 1124 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:28,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 04:53:28,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:28,577 INFO L124 PetriNetUnfolderBase]: 1256/2873 cut-off events. [2023-08-25 04:53:28,577 INFO L125 PetriNetUnfolderBase]: For 11768/11825 co-relation queries the response was YES. [2023-08-25 04:53:28,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11769 conditions, 2873 events. 1256/2873 cut-off events. For 11768/11825 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 19127 event pairs, 465 based on Foata normal form. 36/2886 useless extension candidates. Maximal degree in co-relation 11718. Up to 1411 conditions per place. [2023-08-25 04:53:28,609 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 140 selfloop transitions, 37 changer transitions 6/211 dead transitions. [2023-08-25 04:53:28,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 211 transitions, 2138 flow [2023-08-25 04:53:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:28,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1842 transitions. [2023-08-25 04:53:28,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827044025157233 [2023-08-25 04:53:28,612 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1842 transitions. [2023-08-25 04:53:28,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1842 transitions. [2023-08-25 04:53:28,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:28,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1842 transitions. [2023-08-25 04:53:28,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,617 INFO L175 Difference]: Start difference. First operand has 161 places, 128 transitions, 1124 flow. Second operand 6 states and 1842 transitions. [2023-08-25 04:53:28,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 211 transitions, 2138 flow [2023-08-25 04:53:28,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 211 transitions, 2114 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:28,661 INFO L231 Difference]: Finished difference. Result has 169 places, 150 transitions, 1465 flow [2023-08-25 04:53:28,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1465, PETRI_PLACES=169, PETRI_TRANSITIONS=150} [2023-08-25 04:53:28,662 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 77 predicate places. [2023-08-25 04:53:28,662 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 150 transitions, 1465 flow [2023-08-25 04:53:28,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:28,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:28,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-25 04:53:28,663 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:28,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2050361702, now seen corresponding path program 3 times [2023-08-25 04:53:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:28,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972424373] [2023-08-25 04:53:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:28,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:28,741 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 04:53:28,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:28,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972424373] [2023-08-25 04:53:28,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972424373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:28,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:28,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:28,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459643890] [2023-08-25 04:53:28,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:28,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:28,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:28,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:28,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:28,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 04:53:28,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 150 transitions, 1465 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:28,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 04:53:28,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:29,335 INFO L124 PetriNetUnfolderBase]: 1295/2970 cut-off events. [2023-08-25 04:53:29,336 INFO L125 PetriNetUnfolderBase]: For 15997/16072 co-relation queries the response was YES. [2023-08-25 04:53:29,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13195 conditions, 2970 events. 1295/2970 cut-off events. For 15997/16072 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 19990 event pairs, 463 based on Foata normal form. 68/3012 useless extension candidates. Maximal degree in co-relation 13140. Up to 1352 conditions per place. [2023-08-25 04:53:29,368 INFO L140 encePairwiseOnDemand]: 623/636 looper letters, 139 selfloop transitions, 47 changer transitions 10/224 dead transitions. [2023-08-25 04:53:29,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 224 transitions, 2481 flow [2023-08-25 04:53:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1847 transitions. [2023-08-25 04:53:29,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4840146750524109 [2023-08-25 04:53:29,371 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1847 transitions. [2023-08-25 04:53:29,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1847 transitions. [2023-08-25 04:53:29,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:29,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1847 transitions. [2023-08-25 04:53:29,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:29,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:29,376 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:29,376 INFO L175 Difference]: Start difference. First operand has 169 places, 150 transitions, 1465 flow. Second operand 6 states and 1847 transitions. [2023-08-25 04:53:29,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 224 transitions, 2481 flow [2023-08-25 04:53:29,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 224 transitions, 2479 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:29,439 INFO L231 Difference]: Finished difference. Result has 179 places, 160 transitions, 1795 flow [2023-08-25 04:53:29,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1795, PETRI_PLACES=179, PETRI_TRANSITIONS=160} [2023-08-25 04:53:29,439 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 87 predicate places. [2023-08-25 04:53:29,439 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 160 transitions, 1795 flow [2023-08-25 04:53:29,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:29,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:29,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:29,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-25 04:53:29,440 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:29,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash -224316268, now seen corresponding path program 4 times [2023-08-25 04:53:29,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:29,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968439405] [2023-08-25 04:53:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:29,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:29,515 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 04:53:29,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:29,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968439405] [2023-08-25 04:53:29,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968439405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:29,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:29,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:29,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804374694] [2023-08-25 04:53:29,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:29,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:29,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:29,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:29,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:29,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 636 [2023-08-25 04:53:29,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 160 transitions, 1795 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:29,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:29,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 636 [2023-08-25 04:53:29,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:30,083 INFO L124 PetriNetUnfolderBase]: 1301/2970 cut-off events. [2023-08-25 04:53:30,083 INFO L125 PetriNetUnfolderBase]: For 22049/22184 co-relation queries the response was YES. [2023-08-25 04:53:30,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14274 conditions, 2970 events. 1301/2970 cut-off events. For 22049/22184 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 20047 event pairs, 581 based on Foata normal form. 44/2983 useless extension candidates. Maximal degree in co-relation 14214. Up to 1604 conditions per place. [2023-08-25 04:53:30,109 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 155 selfloop transitions, 16 changer transitions 16/215 dead transitions. [2023-08-25 04:53:30,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 215 transitions, 2652 flow [2023-08-25 04:53:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1541 transitions. [2023-08-25 04:53:30,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48459119496855346 [2023-08-25 04:53:30,111 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1541 transitions. [2023-08-25 04:53:30,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1541 transitions. [2023-08-25 04:53:30,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:30,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1541 transitions. [2023-08-25 04:53:30,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 308.2) internal successors, (1541), 5 states have internal predecessors, (1541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,116 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 636.0) internal successors, (3816), 6 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,116 INFO L175 Difference]: Start difference. First operand has 179 places, 160 transitions, 1795 flow. Second operand 5 states and 1541 transitions. [2023-08-25 04:53:30,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 215 transitions, 2652 flow [2023-08-25 04:53:30,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 215 transitions, 2621 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:30,186 INFO L231 Difference]: Finished difference. Result has 184 places, 160 transitions, 1813 flow [2023-08-25 04:53:30,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1768, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1813, PETRI_PLACES=184, PETRI_TRANSITIONS=160} [2023-08-25 04:53:30,186 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2023-08-25 04:53:30,186 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 160 transitions, 1813 flow [2023-08-25 04:53:30,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:30,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:30,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-25 04:53:30,187 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:30,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:30,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1955584896, now seen corresponding path program 5 times [2023-08-25 04:53:30,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:30,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513863445] [2023-08-25 04:53:30,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:30,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:30,259 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 04:53:30,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513863445] [2023-08-25 04:53:30,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513863445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:30,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106274966] [2023-08-25 04:53:30,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:30,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:30,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:30,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:30,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:30,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 636 [2023-08-25 04:53:30,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 160 transitions, 1813 flow. Second operand has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:30,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 636 [2023-08-25 04:53:30,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:30,709 INFO L124 PetriNetUnfolderBase]: 1262/2936 cut-off events. [2023-08-25 04:53:30,710 INFO L125 PetriNetUnfolderBase]: For 23009/23102 co-relation queries the response was YES. [2023-08-25 04:53:30,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14166 conditions, 2936 events. 1262/2936 cut-off events. For 23009/23102 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19975 event pairs, 560 based on Foata normal form. 36/2940 useless extension candidates. Maximal degree in co-relation 14104. Up to 1714 conditions per place. [2023-08-25 04:53:30,735 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 144 selfloop transitions, 30 changer transitions 9/211 dead transitions. [2023-08-25 04:53:30,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 211 transitions, 2666 flow [2023-08-25 04:53:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:53:30,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:53:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1262 transitions. [2023-08-25 04:53:30,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4960691823899371 [2023-08-25 04:53:30,737 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1262 transitions. [2023-08-25 04:53:30,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1262 transitions. [2023-08-25 04:53:30,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:30,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1262 transitions. [2023-08-25 04:53:30,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 315.5) internal successors, (1262), 4 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,739 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 636.0) internal successors, (3180), 5 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,739 INFO L175 Difference]: Start difference. First operand has 184 places, 160 transitions, 1813 flow. Second operand 4 states and 1262 transitions. [2023-08-25 04:53:30,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 211 transitions, 2666 flow [2023-08-25 04:53:30,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 211 transitions, 2654 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:30,794 INFO L231 Difference]: Finished difference. Result has 187 places, 164 transitions, 1982 flow [2023-08-25 04:53:30,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1803, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1982, PETRI_PLACES=187, PETRI_TRANSITIONS=164} [2023-08-25 04:53:30,795 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 95 predicate places. [2023-08-25 04:53:30,795 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 164 transitions, 1982 flow [2023-08-25 04:53:30,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.75) internal successors, (1207), 4 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:30,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:30,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-25 04:53:30,796 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:30,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash 656380465, now seen corresponding path program 1 times [2023-08-25 04:53:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192461434] [2023-08-25 04:53:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:30,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:30,883 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 04:53:30,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192461434] [2023-08-25 04:53:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192461434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:30,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:30,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:30,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253927784] [2023-08-25 04:53:30,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:30,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:30,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:30,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:30,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:30,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 164 transitions, 1982 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:30,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:30,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:30,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:31,454 INFO L124 PetriNetUnfolderBase]: 1225/2775 cut-off events. [2023-08-25 04:53:31,455 INFO L125 PetriNetUnfolderBase]: For 24947/25010 co-relation queries the response was YES. [2023-08-25 04:53:31,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14285 conditions, 2775 events. 1225/2775 cut-off events. For 24947/25010 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 18381 event pairs, 249 based on Foata normal form. 40/2793 useless extension candidates. Maximal degree in co-relation 14221. Up to 715 conditions per place. [2023-08-25 04:53:31,480 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 159 selfloop transitions, 39 changer transitions 29/255 dead transitions. [2023-08-25 04:53:31,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 255 transitions, 3478 flow [2023-08-25 04:53:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2133 transitions. [2023-08-25 04:53:31,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47911051212938005 [2023-08-25 04:53:31,482 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2133 transitions. [2023-08-25 04:53:31,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2133 transitions. [2023-08-25 04:53:31,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:31,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2133 transitions. [2023-08-25 04:53:31,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.7142857142857) internal successors, (2133), 7 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:31,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:31,488 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:31,489 INFO L175 Difference]: Start difference. First operand has 187 places, 164 transitions, 1982 flow. Second operand 7 states and 2133 transitions. [2023-08-25 04:53:31,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 255 transitions, 3478 flow [2023-08-25 04:53:31,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 255 transitions, 3417 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:31,568 INFO L231 Difference]: Finished difference. Result has 192 places, 175 transitions, 2178 flow [2023-08-25 04:53:31,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2178, PETRI_PLACES=192, PETRI_TRANSITIONS=175} [2023-08-25 04:53:31,569 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 100 predicate places. [2023-08-25 04:53:31,569 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 175 transitions, 2178 flow [2023-08-25 04:53:31,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:31,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:31,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:31,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-25 04:53:31,569 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:31,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1088416119, now seen corresponding path program 2 times [2023-08-25 04:53:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:31,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366342873] [2023-08-25 04:53:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:31,686 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 04:53:31,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366342873] [2023-08-25 04:53:31,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366342873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:31,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:31,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:31,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660566657] [2023-08-25 04:53:31,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:31,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:31,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:31,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:31,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:31,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:31,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 175 transitions, 2178 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:31,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:31,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:31,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:32,153 INFO L124 PetriNetUnfolderBase]: 1138/2643 cut-off events. [2023-08-25 04:53:32,153 INFO L125 PetriNetUnfolderBase]: For 24281/24350 co-relation queries the response was YES. [2023-08-25 04:53:32,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13708 conditions, 2643 events. 1138/2643 cut-off events. For 24281/24350 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 17533 event pairs, 214 based on Foata normal form. 38/2656 useless extension candidates. Maximal degree in co-relation 13643. Up to 863 conditions per place. [2023-08-25 04:53:32,173 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 177 selfloop transitions, 24 changer transitions 29/258 dead transitions. [2023-08-25 04:53:32,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 258 transitions, 3553 flow [2023-08-25 04:53:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2129 transitions. [2023-08-25 04:53:32,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47821203953279423 [2023-08-25 04:53:32,176 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2129 transitions. [2023-08-25 04:53:32,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2129 transitions. [2023-08-25 04:53:32,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:32,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2129 transitions. [2023-08-25 04:53:32,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.14285714285717) internal successors, (2129), 7 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,180 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,180 INFO L175 Difference]: Start difference. First operand has 192 places, 175 transitions, 2178 flow. Second operand 7 states and 2129 transitions. [2023-08-25 04:53:32,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 258 transitions, 3553 flow [2023-08-25 04:53:32,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 258 transitions, 3548 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:32,236 INFO L231 Difference]: Finished difference. Result has 199 places, 175 transitions, 2243 flow [2023-08-25 04:53:32,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2175, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2243, PETRI_PLACES=199, PETRI_TRANSITIONS=175} [2023-08-25 04:53:32,236 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 107 predicate places. [2023-08-25 04:53:32,236 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 175 transitions, 2243 flow [2023-08-25 04:53:32,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:32,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:32,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-25 04:53:32,237 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:32,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:32,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1480170513, now seen corresponding path program 3 times [2023-08-25 04:53:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:32,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293560236] [2023-08-25 04:53:32,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:32,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:32,358 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 04:53:32,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:32,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293560236] [2023-08-25 04:53:32,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293560236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:32,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:32,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:32,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343093214] [2023-08-25 04:53:32,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:32,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:32,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:32,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 175 transitions, 2243 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:32,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:32,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:32,818 INFO L124 PetriNetUnfolderBase]: 1076/2553 cut-off events. [2023-08-25 04:53:32,818 INFO L125 PetriNetUnfolderBase]: For 25182/25247 co-relation queries the response was YES. [2023-08-25 04:53:32,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13622 conditions, 2553 events. 1076/2553 cut-off events. For 25182/25247 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17006 event pairs, 259 based on Foata normal form. 40/2571 useless extension candidates. Maximal degree in co-relation 13555. Up to 763 conditions per place. [2023-08-25 04:53:32,840 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 160 selfloop transitions, 58 changer transitions 10/256 dead transitions. [2023-08-25 04:53:32,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 256 transitions, 3620 flow [2023-08-25 04:53:32,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1841 transitions. [2023-08-25 04:53:32,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48244234800838576 [2023-08-25 04:53:32,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1841 transitions. [2023-08-25 04:53:32,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1841 transitions. [2023-08-25 04:53:32,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:32,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1841 transitions. [2023-08-25 04:53:32,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.8333333333333) internal successors, (1841), 6 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,848 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,848 INFO L175 Difference]: Start difference. First operand has 199 places, 175 transitions, 2243 flow. Second operand 6 states and 1841 transitions. [2023-08-25 04:53:32,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 256 transitions, 3620 flow [2023-08-25 04:53:32,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 256 transitions, 3510 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:32,928 INFO L231 Difference]: Finished difference. Result has 203 places, 190 transitions, 2566 flow [2023-08-25 04:53:32,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2177, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2566, PETRI_PLACES=203, PETRI_TRANSITIONS=190} [2023-08-25 04:53:32,929 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 111 predicate places. [2023-08-25 04:53:32,929 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 190 transitions, 2566 flow [2023-08-25 04:53:32,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:32,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:32,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:32,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-25 04:53:32,929 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:32,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1861070989, now seen corresponding path program 4 times [2023-08-25 04:53:32,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:32,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065438941] [2023-08-25 04:53:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:32,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:33,039 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 04:53:33,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:33,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065438941] [2023-08-25 04:53:33,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065438941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:33,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:33,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:33,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350088026] [2023-08-25 04:53:33,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:33,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:33,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:33,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:33,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:33,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:33,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 190 transitions, 2566 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:33,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:33,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:33,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:33,478 INFO L124 PetriNetUnfolderBase]: 1083/2572 cut-off events. [2023-08-25 04:53:33,479 INFO L125 PetriNetUnfolderBase]: For 27680/27740 co-relation queries the response was YES. [2023-08-25 04:53:33,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14337 conditions, 2572 events. 1083/2572 cut-off events. For 27680/27740 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 17186 event pairs, 246 based on Foata normal form. 22/2563 useless extension candidates. Maximal degree in co-relation 14267. Up to 1064 conditions per place. [2023-08-25 04:53:33,502 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 179 selfloop transitions, 50 changer transitions 9/266 dead transitions. [2023-08-25 04:53:33,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 266 transitions, 3859 flow [2023-08-25 04:53:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:33,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1841 transitions. [2023-08-25 04:53:33,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48244234800838576 [2023-08-25 04:53:33,504 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1841 transitions. [2023-08-25 04:53:33,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1841 transitions. [2023-08-25 04:53:33,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:33,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1841 transitions. [2023-08-25 04:53:33,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.8333333333333) internal successors, (1841), 6 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:33,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:33,508 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:33,508 INFO L175 Difference]: Start difference. First operand has 203 places, 190 transitions, 2566 flow. Second operand 6 states and 1841 transitions. [2023-08-25 04:53:33,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 266 transitions, 3859 flow [2023-08-25 04:53:33,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 266 transitions, 3835 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:33,575 INFO L231 Difference]: Finished difference. Result has 211 places, 201 transitions, 2882 flow [2023-08-25 04:53:33,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2550, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2882, PETRI_PLACES=211, PETRI_TRANSITIONS=201} [2023-08-25 04:53:33,576 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 119 predicate places. [2023-08-25 04:53:33,576 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 201 transitions, 2882 flow [2023-08-25 04:53:33,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:33,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:33,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:33,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-25 04:53:33,577 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:33,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2030704827, now seen corresponding path program 5 times [2023-08-25 04:53:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:33,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121260310] [2023-08-25 04:53:33,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:33,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:33,680 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 04:53:33,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:33,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121260310] [2023-08-25 04:53:33,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121260310] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:33,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:33,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:33,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117373799] [2023-08-25 04:53:33,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:33,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:33,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:33,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:33,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:33,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 201 transitions, 2882 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:33,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:33,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:33,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:34,298 INFO L124 PetriNetUnfolderBase]: 1240/2883 cut-off events. [2023-08-25 04:53:34,299 INFO L125 PetriNetUnfolderBase]: For 37716/37832 co-relation queries the response was YES. [2023-08-25 04:53:34,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17031 conditions, 2883 events. 1240/2883 cut-off events. For 37716/37832 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 19452 event pairs, 354 based on Foata normal form. 68/2924 useless extension candidates. Maximal degree in co-relation 16957. Up to 1230 conditions per place. [2023-08-25 04:53:34,334 INFO L140 encePairwiseOnDemand]: 623/636 looper letters, 201 selfloop transitions, 49 changer transitions 24/302 dead transitions. [2023-08-25 04:53:34,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 302 transitions, 4936 flow [2023-08-25 04:53:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1840 transitions. [2023-08-25 04:53:34,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48218029350104824 [2023-08-25 04:53:34,337 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1840 transitions. [2023-08-25 04:53:34,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1840 transitions. [2023-08-25 04:53:34,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:34,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1840 transitions. [2023-08-25 04:53:34,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.6666666666667) internal successors, (1840), 6 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,342 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,342 INFO L175 Difference]: Start difference. First operand has 211 places, 201 transitions, 2882 flow. Second operand 6 states and 1840 transitions. [2023-08-25 04:53:34,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 302 transitions, 4936 flow [2023-08-25 04:53:34,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 302 transitions, 4830 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:34,466 INFO L231 Difference]: Finished difference. Result has 219 places, 207 transitions, 3226 flow [2023-08-25 04:53:34,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2721, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3226, PETRI_PLACES=219, PETRI_TRANSITIONS=207} [2023-08-25 04:53:34,466 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 127 predicate places. [2023-08-25 04:53:34,466 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 207 transitions, 3226 flow [2023-08-25 04:53:34,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:34,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:34,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-25 04:53:34,467 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:34,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:34,467 INFO L85 PathProgramCache]: Analyzing trace with hash 715178215, now seen corresponding path program 6 times [2023-08-25 04:53:34,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:34,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57174955] [2023-08-25 04:53:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:34,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:34,557 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 04:53:34,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:34,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57174955] [2023-08-25 04:53:34,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57174955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:34,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:34,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:34,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142726387] [2023-08-25 04:53:34,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:34,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:34,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:34,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 207 transitions, 3226 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:34,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:34,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:35,068 INFO L124 PetriNetUnfolderBase]: 1119/2632 cut-off events. [2023-08-25 04:53:35,068 INFO L125 PetriNetUnfolderBase]: For 38766/38858 co-relation queries the response was YES. [2023-08-25 04:53:35,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16275 conditions, 2632 events. 1119/2632 cut-off events. For 38766/38858 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 17859 event pairs, 191 based on Foata normal form. 38/2650 useless extension candidates. Maximal degree in co-relation 16197. Up to 725 conditions per place. [2023-08-25 04:53:35,093 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 195 selfloop transitions, 52 changer transitions 21/296 dead transitions. [2023-08-25 04:53:35,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 296 transitions, 4950 flow [2023-08-25 04:53:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:35,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:35,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1839 transitions. [2023-08-25 04:53:35,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48191823899371067 [2023-08-25 04:53:35,096 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1839 transitions. [2023-08-25 04:53:35,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1839 transitions. [2023-08-25 04:53:35,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:35,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1839 transitions. [2023-08-25 04:53:35,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.5) internal successors, (1839), 6 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,112 INFO L175 Difference]: Start difference. First operand has 219 places, 207 transitions, 3226 flow. Second operand 6 states and 1839 transitions. [2023-08-25 04:53:35,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 296 transitions, 4950 flow [2023-08-25 04:53:35,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 296 transitions, 4755 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-25 04:53:35,223 INFO L231 Difference]: Finished difference. Result has 220 places, 201 transitions, 3156 flow [2023-08-25 04:53:35,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3156, PETRI_PLACES=220, PETRI_TRANSITIONS=201} [2023-08-25 04:53:35,224 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 128 predicate places. [2023-08-25 04:53:35,224 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 201 transitions, 3156 flow [2023-08-25 04:53:35,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:35,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:35,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-25 04:53:35,225 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:35,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1248305083, now seen corresponding path program 1 times [2023-08-25 04:53:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:35,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814365802] [2023-08-25 04:53:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:35,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:35,311 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 04:53:35,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:35,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814365802] [2023-08-25 04:53:35,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814365802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:35,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:35,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:35,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378598518] [2023-08-25 04:53:35,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:35,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:35,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:35,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:35,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:35,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:35,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 201 transitions, 3156 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:35,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:35,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:35,849 INFO L124 PetriNetUnfolderBase]: 1140/2681 cut-off events. [2023-08-25 04:53:35,849 INFO L125 PetriNetUnfolderBase]: For 39412/39552 co-relation queries the response was YES. [2023-08-25 04:53:35,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16406 conditions, 2681 events. 1140/2681 cut-off events. For 39412/39552 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 18165 event pairs, 232 based on Foata normal form. 66/2724 useless extension candidates. Maximal degree in co-relation 16329. Up to 1059 conditions per place. [2023-08-25 04:53:35,872 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 172 selfloop transitions, 44 changer transitions 23/267 dead transitions. [2023-08-25 04:53:35,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 267 transitions, 4590 flow [2023-08-25 04:53:35,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1825 transitions. [2023-08-25 04:53:35,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4782494758909853 [2023-08-25 04:53:35,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1825 transitions. [2023-08-25 04:53:35,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1825 transitions. [2023-08-25 04:53:35,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:35,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1825 transitions. [2023-08-25 04:53:35,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,878 INFO L175 Difference]: Start difference. First operand has 220 places, 201 transitions, 3156 flow. Second operand 6 states and 1825 transitions. [2023-08-25 04:53:35,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 267 transitions, 4590 flow [2023-08-25 04:53:35,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 267 transitions, 4506 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:35,980 INFO L231 Difference]: Finished difference. Result has 225 places, 207 transitions, 3349 flow [2023-08-25 04:53:35,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=3073, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3349, PETRI_PLACES=225, PETRI_TRANSITIONS=207} [2023-08-25 04:53:35,980 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 133 predicate places. [2023-08-25 04:53:35,980 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 207 transitions, 3349 flow [2023-08-25 04:53:35,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:35,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:35,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-25 04:53:35,981 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:35,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:35,981 INFO L85 PathProgramCache]: Analyzing trace with hash -582248911, now seen corresponding path program 2 times [2023-08-25 04:53:35,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:35,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255810729] [2023-08-25 04:53:35,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:35,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:36,067 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 04:53:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:36,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255810729] [2023-08-25 04:53:36,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255810729] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:36,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:36,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:36,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804252528] [2023-08-25 04:53:36,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:36,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:36,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:36,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:36,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:36,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 207 transitions, 3349 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:36,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:36,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:36,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:36,611 INFO L124 PetriNetUnfolderBase]: 1118/2651 cut-off events. [2023-08-25 04:53:36,611 INFO L125 PetriNetUnfolderBase]: For 41397/41543 co-relation queries the response was YES. [2023-08-25 04:53:36,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16456 conditions, 2651 events. 1118/2651 cut-off events. For 41397/41543 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 18016 event pairs, 275 based on Foata normal form. 50/2679 useless extension candidates. Maximal degree in co-relation 16377. Up to 767 conditions per place. [2023-08-25 04:53:36,635 INFO L140 encePairwiseOnDemand]: 627/636 looper letters, 172 selfloop transitions, 57 changer transitions 15/272 dead transitions. [2023-08-25 04:53:36,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 4778 flow [2023-08-25 04:53:36,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2120 transitions. [2023-08-25 04:53:36,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-25 04:53:36,637 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2120 transitions. [2023-08-25 04:53:36,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2120 transitions. [2023-08-25 04:53:36,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:36,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2120 transitions. [2023-08-25 04:53:36,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 302.85714285714283) internal successors, (2120), 7 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:36,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:36,643 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:36,643 INFO L175 Difference]: Start difference. First operand has 225 places, 207 transitions, 3349 flow. Second operand 7 states and 2120 transitions. [2023-08-25 04:53:36,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 4778 flow [2023-08-25 04:53:36,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 272 transitions, 4719 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:36,766 INFO L231 Difference]: Finished difference. Result has 231 places, 213 transitions, 3544 flow [2023-08-25 04:53:36,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=3304, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3544, PETRI_PLACES=231, PETRI_TRANSITIONS=213} [2023-08-25 04:53:36,766 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 139 predicate places. [2023-08-25 04:53:36,767 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 213 transitions, 3544 flow [2023-08-25 04:53:36,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:36,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:36,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:36,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-25 04:53:36,767 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:36,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1186101719, now seen corresponding path program 3 times [2023-08-25 04:53:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:36,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889410068] [2023-08-25 04:53:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:36,848 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 04:53:36,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:36,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889410068] [2023-08-25 04:53:36,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889410068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:36,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:36,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989695704] [2023-08-25 04:53:36,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:36,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:36,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:36,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:36,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:36,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:36,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 213 transitions, 3544 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:36,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:36,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:36,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:37,449 INFO L124 PetriNetUnfolderBase]: 1098/2594 cut-off events. [2023-08-25 04:53:37,449 INFO L125 PetriNetUnfolderBase]: For 43220/43340 co-relation queries the response was YES. [2023-08-25 04:53:37,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16263 conditions, 2594 events. 1098/2594 cut-off events. For 43220/43340 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 17604 event pairs, 212 based on Foata normal form. 50/2620 useless extension candidates. Maximal degree in co-relation 16183. Up to 940 conditions per place. [2023-08-25 04:53:37,474 INFO L140 encePairwiseOnDemand]: 628/636 looper letters, 154 selfloop transitions, 22 changer transitions 64/268 dead transitions. [2023-08-25 04:53:37,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 268 transitions, 4701 flow [2023-08-25 04:53:37,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:37,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2115 transitions. [2023-08-25 04:53:37,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4750673854447439 [2023-08-25 04:53:37,476 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2115 transitions. [2023-08-25 04:53:37,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2115 transitions. [2023-08-25 04:53:37,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:37,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2115 transitions. [2023-08-25 04:53:37,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 302.14285714285717) internal successors, (2115), 7 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:37,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:37,481 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 636.0) internal successors, (5088), 8 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:37,481 INFO L175 Difference]: Start difference. First operand has 231 places, 213 transitions, 3544 flow. Second operand 7 states and 2115 transitions. [2023-08-25 04:53:37,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 268 transitions, 4701 flow [2023-08-25 04:53:37,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 268 transitions, 4618 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-25 04:53:37,594 INFO L231 Difference]: Finished difference. Result has 235 places, 181 transitions, 2852 flow [2023-08-25 04:53:37,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=3424, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2852, PETRI_PLACES=235, PETRI_TRANSITIONS=181} [2023-08-25 04:53:37,595 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 143 predicate places. [2023-08-25 04:53:37,595 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 181 transitions, 2852 flow [2023-08-25 04:53:37,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:37,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:37,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:37,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-25 04:53:37,595 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:37,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:37,596 INFO L85 PathProgramCache]: Analyzing trace with hash 722456721, now seen corresponding path program 4 times [2023-08-25 04:53:37,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:37,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957441050] [2023-08-25 04:53:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:37,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:37,674 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 04:53:37,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:37,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957441050] [2023-08-25 04:53:37,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957441050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:37,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:37,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:37,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855046685] [2023-08-25 04:53:37,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:37,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:37,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:37,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:37,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:37,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 181 transitions, 2852 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:37,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:37,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:37,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:38,206 INFO L124 PetriNetUnfolderBase]: 909/2234 cut-off events. [2023-08-25 04:53:38,206 INFO L125 PetriNetUnfolderBase]: For 33363/33457 co-relation queries the response was YES. [2023-08-25 04:53:38,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13800 conditions, 2234 events. 909/2234 cut-off events. For 33363/33457 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 15110 event pairs, 223 based on Foata normal form. 40/2259 useless extension candidates. Maximal degree in co-relation 13721. Up to 739 conditions per place. [2023-08-25 04:53:38,232 INFO L140 encePairwiseOnDemand]: 625/636 looper letters, 138 selfloop transitions, 55 changer transitions 14/235 dead transitions. [2023-08-25 04:53:38,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 235 transitions, 3894 flow [2023-08-25 04:53:38,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1836 transitions. [2023-08-25 04:53:38,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4811320754716981 [2023-08-25 04:53:38,234 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1836 transitions. [2023-08-25 04:53:38,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1836 transitions. [2023-08-25 04:53:38,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:38,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1836 transitions. [2023-08-25 04:53:38,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.0) internal successors, (1836), 6 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,239 INFO L175 Difference]: Start difference. First operand has 235 places, 181 transitions, 2852 flow. Second operand 6 states and 1836 transitions. [2023-08-25 04:53:38,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 235 transitions, 3894 flow [2023-08-25 04:53:38,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 235 transitions, 3754 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-25 04:53:38,319 INFO L231 Difference]: Finished difference. Result has 234 places, 183 transitions, 2905 flow [2023-08-25 04:53:38,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2719, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2905, PETRI_PLACES=234, PETRI_TRANSITIONS=183} [2023-08-25 04:53:38,319 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 142 predicate places. [2023-08-25 04:53:38,319 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 183 transitions, 2905 flow [2023-08-25 04:53:38,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:38,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:38,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-25 04:53:38,320 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:38,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1236082297, now seen corresponding path program 5 times [2023-08-25 04:53:38,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:38,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869563933] [2023-08-25 04:53:38,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:38,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:38,401 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 04:53:38,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:38,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869563933] [2023-08-25 04:53:38,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869563933] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:38,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:38,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:38,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456693392] [2023-08-25 04:53:38,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:38,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:38,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:38,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:38,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:38,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:38,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 183 transitions, 2905 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:38,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:38,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:38,826 INFO L124 PetriNetUnfolderBase]: 1060/2559 cut-off events. [2023-08-25 04:53:38,827 INFO L125 PetriNetUnfolderBase]: For 40977/41105 co-relation queries the response was YES. [2023-08-25 04:53:38,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16248 conditions, 2559 events. 1060/2559 cut-off events. For 40977/41105 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 17980 event pairs, 171 based on Foata normal form. 50/2587 useless extension candidates. Maximal degree in co-relation 16172. Up to 747 conditions per place. [2023-08-25 04:53:38,850 INFO L140 encePairwiseOnDemand]: 622/636 looper letters, 168 selfloop transitions, 43 changer transitions 36/275 dead transitions. [2023-08-25 04:53:38,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 275 transitions, 4790 flow [2023-08-25 04:53:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2023-08-25 04:53:38,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4798218029350105 [2023-08-25 04:53:38,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1831 transitions. [2023-08-25 04:53:38,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1831 transitions. [2023-08-25 04:53:38,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:38,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1831 transitions. [2023-08-25 04:53:38,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.1666666666667) internal successors, (1831), 6 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,856 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,856 INFO L175 Difference]: Start difference. First operand has 234 places, 183 transitions, 2905 flow. Second operand 6 states and 1831 transitions. [2023-08-25 04:53:38,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 275 transitions, 4790 flow [2023-08-25 04:53:38,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 275 transitions, 4718 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:38,959 INFO L231 Difference]: Finished difference. Result has 238 places, 184 transitions, 3048 flow [2023-08-25 04:53:38,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2744, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3048, PETRI_PLACES=238, PETRI_TRANSITIONS=184} [2023-08-25 04:53:38,959 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 146 predicate places. [2023-08-25 04:53:38,959 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 184 transitions, 3048 flow [2023-08-25 04:53:38,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:38,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:38,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:38,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-25 04:53:38,960 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 04:53:38,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:38,960 INFO L85 PathProgramCache]: Analyzing trace with hash -239202067, now seen corresponding path program 6 times [2023-08-25 04:53:38,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:38,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301512297] [2023-08-25 04:53:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:38,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:39,050 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 04:53:39,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301512297] [2023-08-25 04:53:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301512297] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:39,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014118438] [2023-08-25 04:53:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:39,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:39,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:39,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:39,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 636 [2023-08-25 04:53:39,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 184 transitions, 3048 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:39,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:39,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 636 [2023-08-25 04:53:39,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:39,472 INFO L124 PetriNetUnfolderBase]: 990/2405 cut-off events. [2023-08-25 04:53:39,472 INFO L125 PetriNetUnfolderBase]: For 41097/41208 co-relation queries the response was YES. [2023-08-25 04:53:39,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15639 conditions, 2405 events. 990/2405 cut-off events. For 41097/41208 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 16988 event pairs, 270 based on Foata normal form. 44/2428 useless extension candidates. Maximal degree in co-relation 15562. Up to 904 conditions per place. [2023-08-25 04:53:39,491 INFO L140 encePairwiseOnDemand]: 623/636 looper letters, 0 selfloop transitions, 0 changer transitions 246/246 dead transitions. [2023-08-25 04:53:39,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 246 transitions, 4298 flow [2023-08-25 04:53:39,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:39,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1828 transitions. [2023-08-25 04:53:39,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4790356394129979 [2023-08-25 04:53:39,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1828 transitions. [2023-08-25 04:53:39,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1828 transitions. [2023-08-25 04:53:39,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:39,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1828 transitions. [2023-08-25 04:53:39,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.6666666666667) internal successors, (1828), 6 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:39,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:39,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 636.0) internal successors, (4452), 7 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:39,496 INFO L175 Difference]: Start difference. First operand has 238 places, 184 transitions, 3048 flow. Second operand 6 states and 1828 transitions. [2023-08-25 04:53:39,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 246 transitions, 4298 flow [2023-08-25 04:53:39,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 246 transitions, 4041 flow, removed 8 selfloop flow, removed 14 redundant places. [2023-08-25 04:53:39,591 INFO L231 Difference]: Finished difference. Result has 225 places, 0 transitions, 0 flow [2023-08-25 04:53:39,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=636, PETRI_DIFFERENCE_MINUEND_FLOW=2671, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=225, PETRI_TRANSITIONS=0} [2023-08-25 04:53:39,591 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 133 predicate places. [2023-08-25 04:53:39,591 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 0 transitions, 0 flow [2023-08-25 04:53:39,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:39,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (58 of 59 remaining) [2023-08-25 04:53:39,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2023-08-25 04:53:39,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2023-08-25 04:53:39,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2023-08-25 04:53:39,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2023-08-25 04:53:39,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2023-08-25 04:53:39,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2023-08-25 04:53:39,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2023-08-25 04:53:39,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2023-08-25 04:53:39,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2023-08-25 04:53:39,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2023-08-25 04:53:39,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2023-08-25 04:53:39,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2023-08-25 04:53:39,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2023-08-25 04:53:39,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2023-08-25 04:53:39,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2023-08-25 04:53:39,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2023-08-25 04:53:39,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2023-08-25 04:53:39,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2023-08-25 04:53:39,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2023-08-25 04:53:39,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2023-08-25 04:53:39,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2023-08-25 04:53:39,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2023-08-25 04:53:39,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2023-08-25 04:53:39,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2023-08-25 04:53:39,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2023-08-25 04:53:39,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2023-08-25 04:53:39,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2023-08-25 04:53:39,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2023-08-25 04:53:39,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2023-08-25 04:53:39,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2023-08-25 04:53:39,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2023-08-25 04:53:39,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2023-08-25 04:53:39,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (24 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2023-08-25 04:53:39,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2023-08-25 04:53:39,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2023-08-25 04:53:39,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2023-08-25 04:53:39,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2023-08-25 04:53:39,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2023-08-25 04:53:39,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2023-08-25 04:53:39,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2023-08-25 04:53:39,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2023-08-25 04:53:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2023-08-25 04:53:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2023-08-25 04:53:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2023-08-25 04:53:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2023-08-25 04:53:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2023-08-25 04:53:39,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-25 04:53:39,605 INFO L445 BasicCegarLoop]: Path program histogram: [6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:39,610 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 04:53:39,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 04:53:39,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:53:39 BasicIcfg [2023-08-25 04:53:39,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 04:53:39,614 INFO L158 Benchmark]: Toolchain (without parser) took 46136.70ms. Allocated memory was 377.5MB in the beginning and 2.7GB in the end (delta: 2.3GB). Free memory was 353.0MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 973.4MB. Max. memory is 16.0GB. [2023-08-25 04:53:39,614 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 377.5MB. Free memory was 355.2MB in the beginning and 355.0MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 04:53:39,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.82ms. Allocated memory is still 377.5MB. Free memory was 353.0MB in the beginning and 340.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 04:53:39,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.85ms. Allocated memory is still 377.5MB. Free memory was 340.8MB in the beginning and 338.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 04:53:39,614 INFO L158 Benchmark]: Boogie Preprocessor took 36.29ms. Allocated memory is still 377.5MB. Free memory was 338.7MB in the beginning and 336.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 04:53:39,615 INFO L158 Benchmark]: RCFGBuilder took 688.34ms. Allocated memory is still 377.5MB. Free memory was 336.7MB in the beginning and 312.3MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 04:53:39,615 INFO L158 Benchmark]: TraceAbstraction took 45050.74ms. Allocated memory was 377.5MB in the beginning and 2.7GB in the end (delta: 2.3GB). Free memory was 311.5MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 931.5MB. Max. memory is 16.0GB. [2023-08-25 04:53:39,616 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 377.5MB. Free memory was 355.2MB in the beginning and 355.0MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 283.82ms. Allocated memory is still 377.5MB. Free memory was 353.0MB in the beginning and 340.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 71.85ms. Allocated memory is still 377.5MB. Free memory was 340.8MB in the beginning and 338.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.29ms. Allocated memory is still 377.5MB. Free memory was 338.7MB in the beginning and 336.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 688.34ms. Allocated memory is still 377.5MB. Free memory was 336.7MB in the beginning and 312.3MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 45050.74ms. Allocated memory was 377.5MB in the beginning and 2.7GB in the end (delta: 2.3GB). Free memory was 311.5MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 931.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 297 PlacesBefore, 92 PlacesAfterwards, 312 TransitionsBefore, 98 TransitionsAfterwards, 21716 CoEnabledTransitionPairs, 9 FixpointIterations, 127 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 38 ConcurrentYvCompositions, 9 ChoiceCompositions, 313 TotalNumberOfCompositions, 82119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26900, independent: 25697, independent conditional: 0, independent unconditional: 25697, dependent: 1203, dependent conditional: 0, dependent unconditional: 1203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12052, independent: 11928, independent conditional: 0, independent unconditional: 11928, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26900, independent: 13769, independent conditional: 0, independent unconditional: 13769, dependent: 1079, dependent conditional: 0, dependent unconditional: 1079, unknown: 12052, unknown conditional: 0, unknown unconditional: 12052] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 807, Positive conditional cache size: 0, Positive unconditional cache size: 807, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 468 locations, 59 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 44.8s, OverallIterations: 50, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2451 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2451 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 249 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7950 IncrementalHoareTripleChecker+Invalid, 8199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 249 mSolverCounterUnsat, 21 mSDtfsCounter, 7950 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3544occurred in iteration=46, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1524 NumberOfCodeBlocks, 1524 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1474 ConstructedInterpolants, 0 QuantifiedInterpolants, 4033 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 50 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 35 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 04:53:39,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...