./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:44:56,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:44:56,551 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:44:56,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:44:56,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:44:56,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:44:56,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:44:56,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:44:56,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:44:56,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:44:56,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:44:56,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:44:56,587 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:44:56,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:44:56,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:44:56,588 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:44:56,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:44:56,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:44:56,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:44:56,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:44:56,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:44:56,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:44:56,593 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:44:56,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:44:56,593 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:44:56,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:44:56,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:44:56,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:44:56,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:44:56,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:44:56,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:44:56,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:44:56,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:44:56,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:44:56,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:44:56,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:44:56,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:44:56,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:44:56,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:44:56,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:44:56,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:44:56,598 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2024-10-11 16:44:56,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:44:56,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:44:56,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:44:56,876 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:44:56,877 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:44:56,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i [2024-10-11 16:44:58,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:44:58,543 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:44:58,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i [2024-10-11 16:44:58,562 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/09c342cf3/8b5db96a6b4849cc971df9a9178b2475/FLAG62189dcf7 [2024-10-11 16:44:58,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/09c342cf3/8b5db96a6b4849cc971df9a9178b2475 [2024-10-11 16:44:58,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:44:58,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:44:58,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:44:58,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:44:58,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:44:58,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:44:58" (1/1) ... [2024-10-11 16:44:58,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7008f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:58, skipping insertion in model container [2024-10-11 16:44:58,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:44:58" (1/1) ... [2024-10-11 16:44:58,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:44:59,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:44:59,388 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:44:59,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:44:59,549 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:44:59,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59 WrapperNode [2024-10-11 16:44:59,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:44:59,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:44:59,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:44:59,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:44:59,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,661 INFO L138 Inliner]: procedures = 274, calls = 64, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 483 [2024-10-11 16:44:59,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:44:59,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:44:59,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:44:59,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:44:59,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:44:59,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:44:59,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:44:59,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:44:59,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:44:59,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:44:59,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:44:59,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:44:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-11 16:44:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-11 16:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-11 16:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-11 16:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 16:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:44:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:44:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 16:44:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:44:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:44:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:44:59,865 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:45:00,042 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:00,044 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:00,784 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:00,785 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:00,845 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:00,845 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 16:45:00,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:00 BoogieIcfgContainer [2024-10-11 16:45:00,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:00,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:00,849 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:00,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:00,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:44:58" (1/3) ... [2024-10-11 16:45:00,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392e7e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:00, skipping insertion in model container [2024-10-11 16:45:00,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59" (2/3) ... [2024-10-11 16:45:00,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392e7e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:00, skipping insertion in model container [2024-10-11 16:45:00,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:00" (3/3) ... [2024-10-11 16:45:00,856 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2024-10-11 16:45:00,874 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:00,874 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-11 16:45:00,874 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:01,038 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 16:45:01,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 542 places, 553 transitions, 1120 flow [2024-10-11 16:45:01,355 INFO L124 PetriNetUnfolderBase]: 18/551 cut-off events. [2024-10-11 16:45:01,356 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:45:01,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 551 events. 18/551 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 729 event pairs, 0 based on Foata normal form. 0/491 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2024-10-11 16:45:01,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 542 places, 553 transitions, 1120 flow [2024-10-11 16:45:01,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 529 places, 538 transitions, 1085 flow [2024-10-11 16:45:01,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:01,404 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@67155b97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:01,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-11 16:45:01,415 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:01,415 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-10-11 16:45:01,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:01,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:01,417 INFO L204 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] [2024-10-11 16:45:01,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:01,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1074808205, now seen corresponding path program 1 times [2024-10-11 16:45:01,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:01,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284925023] [2024-10-11 16:45:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:01,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:01,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284925023] [2024-10-11 16:45:01,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284925023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:01,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:01,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:01,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365948524] [2024-10-11 16:45:01,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:01,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:01,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:01,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:01,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 553 [2024-10-11 16:45:01,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 538 transitions, 1085 flow. Second operand has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:01,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:01,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 553 [2024-10-11 16:45:01,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:02,169 INFO L124 PetriNetUnfolderBase]: 61/1645 cut-off events. [2024-10-11 16:45:02,169 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 16:45:02,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1740 conditions, 1645 events. 61/1645 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7606 event pairs, 27 based on Foata normal form. 37/1505 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2024-10-11 16:45:02,191 INFO L140 encePairwiseOnDemand]: 544/553 looper letters, 15 selfloop transitions, 2 changer transitions 0/527 dead transitions. [2024-10-11 16:45:02,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 527 transitions, 1097 flow [2024-10-11 16:45:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1587 transitions. [2024-10-11 16:45:02,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9566003616636528 [2024-10-11 16:45:02,214 INFO L175 Difference]: Start difference. First operand has 529 places, 538 transitions, 1085 flow. Second operand 3 states and 1587 transitions. [2024-10-11 16:45:02,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 527 transitions, 1097 flow [2024-10-11 16:45:02,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 527 transitions, 1092 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 16:45:02,234 INFO L231 Difference]: Finished difference. Result has 523 places, 527 transitions, 1062 flow [2024-10-11 16:45:02,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1062, PETRI_PLACES=523, PETRI_TRANSITIONS=527} [2024-10-11 16:45:02,242 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -6 predicate places. [2024-10-11 16:45:02,243 INFO L471 AbstractCegarLoop]: Abstraction has has 523 places, 527 transitions, 1062 flow [2024-10-11 16:45:02,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:02,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:02,244 INFO L204 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] [2024-10-11 16:45:02,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:02,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:02,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1021316997, now seen corresponding path program 1 times [2024-10-11 16:45:02,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:02,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327058957] [2024-10-11 16:45:02,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:02,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:02,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:02,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327058957] [2024-10-11 16:45:02,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327058957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:02,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:02,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:02,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104005287] [2024-10-11 16:45:02,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:02,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:02,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:02,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:02,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:02,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 553 [2024-10-11 16:45:02,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 527 transitions, 1062 flow. Second operand has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:02,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:02,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 553 [2024-10-11 16:45:02,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:02,752 INFO L124 PetriNetUnfolderBase]: 69/1919 cut-off events. [2024-10-11 16:45:02,752 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 16:45:02,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2012 conditions, 1919 events. 69/1919 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 9594 event pairs, 29 based on Foata normal form. 0/1714 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2024-10-11 16:45:02,774 INFO L140 encePairwiseOnDemand]: 550/553 looper letters, 15 selfloop transitions, 2 changer transitions 0/526 dead transitions. [2024-10-11 16:45:02,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 526 transitions, 1094 flow [2024-10-11 16:45:02,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1581 transitions. [2024-10-11 16:45:02,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529837251356239 [2024-10-11 16:45:02,778 INFO L175 Difference]: Start difference. First operand has 523 places, 527 transitions, 1062 flow. Second operand 3 states and 1581 transitions. [2024-10-11 16:45:02,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 526 transitions, 1094 flow [2024-10-11 16:45:02,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 526 transitions, 1090 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:02,787 INFO L231 Difference]: Finished difference. Result has 522 places, 526 transitions, 1060 flow [2024-10-11 16:45:02,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1060, PETRI_PLACES=522, PETRI_TRANSITIONS=526} [2024-10-11 16:45:02,789 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -7 predicate places. [2024-10-11 16:45:02,789 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 526 transitions, 1060 flow [2024-10-11 16:45:02,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:02,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:02,791 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:02,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:02,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:02,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash -905983325, now seen corresponding path program 1 times [2024-10-11 16:45:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:02,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492761631] [2024-10-11 16:45:02,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:02,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:03,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:03,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492761631] [2024-10-11 16:45:03,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492761631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:03,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864926415] [2024-10-11 16:45:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:03,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:03,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:03,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:03,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:04,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 553 [2024-10-11 16:45:04,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 526 transitions, 1060 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:04,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:04,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 553 [2024-10-11 16:45:04,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:07,025 INFO L124 PetriNetUnfolderBase]: 3671/15055 cut-off events. [2024-10-11 16:45:07,025 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:07,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22103 conditions, 15055 events. 3671/15055 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136995 event pairs, 3314 based on Foata normal form. 0/13594 useless extension candidates. Maximal degree in co-relation 22055. Up to 6868 conditions per place. [2024-10-11 16:45:07,135 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 138 selfloop transitions, 5 changer transitions 0/525 dead transitions. [2024-10-11 16:45:07,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 525 transitions, 1344 flow [2024-10-11 16:45:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:07,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2520 transitions. [2024-10-11 16:45:07,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.759493670886076 [2024-10-11 16:45:07,141 INFO L175 Difference]: Start difference. First operand has 522 places, 526 transitions, 1060 flow. Second operand 6 states and 2520 transitions. [2024-10-11 16:45:07,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 525 transitions, 1344 flow [2024-10-11 16:45:07,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 525 transitions, 1340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:07,150 INFO L231 Difference]: Finished difference. Result has 524 places, 525 transitions, 1064 flow [2024-10-11 16:45:07,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1064, PETRI_PLACES=524, PETRI_TRANSITIONS=525} [2024-10-11 16:45:07,152 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -5 predicate places. [2024-10-11 16:45:07,152 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 525 transitions, 1064 flow [2024-10-11 16:45:07,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:07,154 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:07,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:07,155 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:07,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash 58164248, now seen corresponding path program 1 times [2024-10-11 16:45:07,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:07,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823435046] [2024-10-11 16:45:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:07,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:07,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:07,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823435046] [2024-10-11 16:45:07,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823435046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:07,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:07,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:07,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264831471] [2024-10-11 16:45:07,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:07,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:07,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:07,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:07,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:08,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 553 [2024-10-11 16:45:08,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 525 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:08,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 553 [2024-10-11 16:45:08,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:11,218 INFO L124 PetriNetUnfolderBase]: 3671/15054 cut-off events. [2024-10-11 16:45:11,218 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:11,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22105 conditions, 15054 events. 3671/15054 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 137007 event pairs, 3314 based on Foata normal form. 0/13594 useless extension candidates. Maximal degree in co-relation 22041. Up to 6868 conditions per place. [2024-10-11 16:45:11,422 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 138 selfloop transitions, 5 changer transitions 0/524 dead transitions. [2024-10-11 16:45:11,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 524 transitions, 1348 flow [2024-10-11 16:45:11,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2520 transitions. [2024-10-11 16:45:11,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.759493670886076 [2024-10-11 16:45:11,428 INFO L175 Difference]: Start difference. First operand has 524 places, 525 transitions, 1064 flow. Second operand 6 states and 2520 transitions. [2024-10-11 16:45:11,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 524 transitions, 1348 flow [2024-10-11 16:45:11,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 524 transitions, 1338 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:11,437 INFO L231 Difference]: Finished difference. Result has 523 places, 524 transitions, 1062 flow [2024-10-11 16:45:11,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1062, PETRI_PLACES=523, PETRI_TRANSITIONS=524} [2024-10-11 16:45:11,439 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -6 predicate places. [2024-10-11 16:45:11,439 INFO L471 AbstractCegarLoop]: Abstraction has has 523 places, 524 transitions, 1062 flow [2024-10-11 16:45:11,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:11,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:11,442 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:11,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:11,443 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:11,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:11,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1215733621, now seen corresponding path program 1 times [2024-10-11 16:45:11,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:11,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593826797] [2024-10-11 16:45:11,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:11,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:11,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:11,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:11,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593826797] [2024-10-11 16:45:11,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593826797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:11,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:11,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:11,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938541814] [2024-10-11 16:45:11,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:11,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:11,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:11,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:11,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:12,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 553 [2024-10-11 16:45:12,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 524 transitions, 1062 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:12,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 553 [2024-10-11 16:45:12,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:14,539 INFO L124 PetriNetUnfolderBase]: 3671/15053 cut-off events. [2024-10-11 16:45:14,539 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:14,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22104 conditions, 15053 events. 3671/15053 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136974 event pairs, 3314 based on Foata normal form. 0/13594 useless extension candidates. Maximal degree in co-relation 22032. Up to 6868 conditions per place. [2024-10-11 16:45:14,610 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 138 selfloop transitions, 5 changer transitions 0/523 dead transitions. [2024-10-11 16:45:14,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 523 transitions, 1346 flow [2024-10-11 16:45:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2520 transitions. [2024-10-11 16:45:14,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.759493670886076 [2024-10-11 16:45:14,617 INFO L175 Difference]: Start difference. First operand has 523 places, 524 transitions, 1062 flow. Second operand 6 states and 2520 transitions. [2024-10-11 16:45:14,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 523 transitions, 1346 flow [2024-10-11 16:45:14,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 523 transitions, 1336 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:14,624 INFO L231 Difference]: Finished difference. Result has 522 places, 523 transitions, 1060 flow [2024-10-11 16:45:14,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1060, PETRI_PLACES=522, PETRI_TRANSITIONS=523} [2024-10-11 16:45:14,626 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -7 predicate places. [2024-10-11 16:45:14,626 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 523 transitions, 1060 flow [2024-10-11 16:45:14,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:14,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:14,628 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:14,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:14,628 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:14,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash -846706854, now seen corresponding path program 1 times [2024-10-11 16:45:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:14,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749576153] [2024-10-11 16:45:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:15,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:15,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749576153] [2024-10-11 16:45:15,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749576153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:15,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:15,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:15,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946776965] [2024-10-11 16:45:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:15,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:15,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:15,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:15,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:16,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 553 [2024-10-11 16:45:16,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 523 transitions, 1060 flow. Second operand has 6 states, 6 states have (on average 461.1666666666667) internal successors, (2767), 6 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:16,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:16,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 553 [2024-10-11 16:45:16,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:17,205 INFO L124 PetriNetUnfolderBase]: 831/5571 cut-off events. [2024-10-11 16:45:17,206 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:17,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7149 conditions, 5571 events. 831/5571 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45310 event pairs, 674 based on Foata normal form. 0/4962 useless extension candidates. Maximal degree in co-relation 7059. Up to 1475 conditions per place. [2024-10-11 16:45:17,236 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 76 selfloop transitions, 5 changer transitions 0/522 dead transitions. [2024-10-11 16:45:17,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 522 transitions, 1220 flow [2024-10-11 16:45:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2830 transitions. [2024-10-11 16:45:17,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8529234478601567 [2024-10-11 16:45:17,244 INFO L175 Difference]: Start difference. First operand has 522 places, 523 transitions, 1060 flow. Second operand 6 states and 2830 transitions. [2024-10-11 16:45:17,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 522 transitions, 1220 flow [2024-10-11 16:45:17,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 522 transitions, 1210 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:17,253 INFO L231 Difference]: Finished difference. Result has 521 places, 522 transitions, 1058 flow [2024-10-11 16:45:17,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1058, PETRI_PLACES=521, PETRI_TRANSITIONS=522} [2024-10-11 16:45:17,255 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -8 predicate places. [2024-10-11 16:45:17,255 INFO L471 AbstractCegarLoop]: Abstraction has has 521 places, 522 transitions, 1058 flow [2024-10-11 16:45:17,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 461.1666666666667) internal successors, (2767), 6 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:17,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:17,258 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:17,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:17,258 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:17,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:17,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1483324975, now seen corresponding path program 1 times [2024-10-11 16:45:17,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:17,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412101271] [2024-10-11 16:45:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:17,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:17,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:17,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412101271] [2024-10-11 16:45:17,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412101271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:17,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:17,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868190044] [2024-10-11 16:45:17,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:17,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:17,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:18,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 553 [2024-10-11 16:45:18,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 522 transitions, 1058 flow. Second operand has 6 states, 6 states have (on average 461.1666666666667) internal successors, (2767), 6 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:18,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:18,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 553 [2024-10-11 16:45:18,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:19,318 INFO L124 PetriNetUnfolderBase]: 831/5570 cut-off events. [2024-10-11 16:45:19,318 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:19,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7148 conditions, 5570 events. 831/5570 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45095 event pairs, 674 based on Foata normal form. 0/4962 useless extension candidates. Maximal degree in co-relation 7020. Up to 1475 conditions per place. [2024-10-11 16:45:19,342 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 76 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-10-11 16:45:19,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 521 transitions, 1218 flow [2024-10-11 16:45:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2830 transitions. [2024-10-11 16:45:19,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8529234478601567 [2024-10-11 16:45:19,351 INFO L175 Difference]: Start difference. First operand has 521 places, 522 transitions, 1058 flow. Second operand 6 states and 2830 transitions. [2024-10-11 16:45:19,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 521 transitions, 1218 flow [2024-10-11 16:45:19,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 521 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:19,361 INFO L231 Difference]: Finished difference. Result has 520 places, 521 transitions, 1056 flow [2024-10-11 16:45:19,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1056, PETRI_PLACES=520, PETRI_TRANSITIONS=521} [2024-10-11 16:45:19,364 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -9 predicate places. [2024-10-11 16:45:19,364 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 521 transitions, 1056 flow [2024-10-11 16:45:19,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 461.1666666666667) internal successors, (2767), 6 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:19,367 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:19,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:19,367 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:19,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:19,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1232829961, now seen corresponding path program 1 times [2024-10-11 16:45:19,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646368958] [2024-10-11 16:45:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:19,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:19,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646368958] [2024-10-11 16:45:19,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646368958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:19,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:19,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:19,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125070217] [2024-10-11 16:45:19,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:19,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:19,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:19,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:19,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:19,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 553 [2024-10-11 16:45:19,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 521 transitions, 1056 flow. Second operand has 3 states, 3 states have (on average 527.0) internal successors, (1581), 3 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:19,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 553 [2024-10-11 16:45:19,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:19,900 INFO L124 PetriNetUnfolderBase]: 114/2637 cut-off events. [2024-10-11 16:45:19,900 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 16:45:19,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2637 events. 114/2637 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13888 event pairs, 25 based on Foata normal form. 0/2341 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2024-10-11 16:45:19,915 INFO L140 encePairwiseOnDemand]: 548/553 looper letters, 22 selfloop transitions, 4 changer transitions 0/532 dead transitions. [2024-10-11 16:45:19,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 532 transitions, 1131 flow [2024-10-11 16:45:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:19,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:19,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1602 transitions. [2024-10-11 16:45:19,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9656419529837251 [2024-10-11 16:45:19,918 INFO L175 Difference]: Start difference. First operand has 520 places, 521 transitions, 1056 flow. Second operand 3 states and 1602 transitions. [2024-10-11 16:45:19,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 532 transitions, 1131 flow [2024-10-11 16:45:19,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 532 transitions, 1121 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:19,930 INFO L231 Difference]: Finished difference. Result has 519 places, 525 transitions, 1080 flow [2024-10-11 16:45:19,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1080, PETRI_PLACES=519, PETRI_TRANSITIONS=525} [2024-10-11 16:45:19,934 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -10 predicate places. [2024-10-11 16:45:19,934 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 525 transitions, 1080 flow [2024-10-11 16:45:19,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 527.0) internal successors, (1581), 3 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:19,936 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:19,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:19,936 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:19,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:19,941 INFO L85 PathProgramCache]: Analyzing trace with hash -144851381, now seen corresponding path program 1 times [2024-10-11 16:45:19,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:19,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508481230] [2024-10-11 16:45:19,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:19,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:21,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:21,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508481230] [2024-10-11 16:45:21,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508481230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:21,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:21,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 16:45:21,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647179794] [2024-10-11 16:45:21,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:21,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:21,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:21,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:22,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 553 [2024-10-11 16:45:22,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 525 transitions, 1080 flow. Second operand has 13 states, 13 states have (on average 495.9230769230769) internal successors, (6447), 13 states have internal predecessors, (6447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:22,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:22,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 553 [2024-10-11 16:45:22,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:23,572 INFO L124 PetriNetUnfolderBase]: 251/4159 cut-off events. [2024-10-11 16:45:23,572 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-11 16:45:23,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4661 conditions, 4159 events. 251/4159 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 28782 event pairs, 81 based on Foata normal form. 0/3701 useless extension candidates. Maximal degree in co-relation 4177. Up to 356 conditions per place. [2024-10-11 16:45:23,601 INFO L140 encePairwiseOnDemand]: 535/553 looper letters, 32 selfloop transitions, 17 changer transitions 0/527 dead transitions. [2024-10-11 16:45:23,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 527 transitions, 1184 flow [2024-10-11 16:45:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 16:45:23,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 16:45:23,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5978 transitions. [2024-10-11 16:45:23,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9008438818565401 [2024-10-11 16:45:23,617 INFO L175 Difference]: Start difference. First operand has 519 places, 525 transitions, 1080 flow. Second operand 12 states and 5978 transitions. [2024-10-11 16:45:23,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 527 transitions, 1184 flow [2024-10-11 16:45:23,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 527 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:23,629 INFO L231 Difference]: Finished difference. Result has 526 places, 523 transitions, 1113 flow [2024-10-11 16:45:23,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1113, PETRI_PLACES=526, PETRI_TRANSITIONS=523} [2024-10-11 16:45:23,630 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -3 predicate places. [2024-10-11 16:45:23,630 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 523 transitions, 1113 flow [2024-10-11 16:45:23,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 495.9230769230769) internal successors, (6447), 13 states have internal predecessors, (6447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:23,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:23,635 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:23,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:23,636 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:23,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:23,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2074613299, now seen corresponding path program 1 times [2024-10-11 16:45:23,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:23,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375603987] [2024-10-11 16:45:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:23,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:24,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:24,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375603987] [2024-10-11 16:45:24,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375603987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:24,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:24,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:24,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399788071] [2024-10-11 16:45:24,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:24,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:24,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:24,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:25,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 553 [2024-10-11 16:45:25,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 523 transitions, 1113 flow. Second operand has 6 states, 6 states have (on average 432.5) internal successors, (2595), 6 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:25,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:25,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 553 [2024-10-11 16:45:25,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:28,189 INFO L124 PetriNetUnfolderBase]: 3115/15048 cut-off events. [2024-10-11 16:45:28,189 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-11 16:45:28,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 15048 events. 3115/15048 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 141151 event pairs, 1131 based on Foata normal form. 0/13610 useless extension candidates. Maximal degree in co-relation 20505. Up to 4528 conditions per place. [2024-10-11 16:45:28,317 INFO L140 encePairwiseOnDemand]: 499/553 looper letters, 125 selfloop transitions, 84 changer transitions 0/621 dead transitions. [2024-10-11 16:45:28,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 621 transitions, 1735 flow [2024-10-11 16:45:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2789 transitions. [2024-10-11 16:45:28,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405666063893912 [2024-10-11 16:45:28,327 INFO L175 Difference]: Start difference. First operand has 526 places, 523 transitions, 1113 flow. Second operand 6 states and 2789 transitions. [2024-10-11 16:45:28,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 621 transitions, 1735 flow [2024-10-11 16:45:28,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 621 transitions, 1708 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-11 16:45:28,343 INFO L231 Difference]: Finished difference. Result has 526 places, 603 transitions, 1682 flow [2024-10-11 16:45:28,345 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1682, PETRI_PLACES=526, PETRI_TRANSITIONS=603} [2024-10-11 16:45:28,346 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -3 predicate places. [2024-10-11 16:45:28,347 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 603 transitions, 1682 flow [2024-10-11 16:45:28,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.5) internal successors, (2595), 6 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:28,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:28,350 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:28,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:28,350 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:28,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:28,351 INFO L85 PathProgramCache]: Analyzing trace with hash -514934935, now seen corresponding path program 1 times [2024-10-11 16:45:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:28,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63158560] [2024-10-11 16:45:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:28,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:28,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:28,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63158560] [2024-10-11 16:45:28,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63158560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:28,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:28,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:28,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129433314] [2024-10-11 16:45:28,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:28,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:28,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:28,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 526 out of 553 [2024-10-11 16:45:28,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 603 transitions, 1682 flow. Second operand has 3 states, 3 states have (on average 528.0) internal successors, (1584), 3 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:28,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:28,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 526 of 553 [2024-10-11 16:45:28,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:30,015 INFO L124 PetriNetUnfolderBase]: 990/8705 cut-off events. [2024-10-11 16:45:30,015 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2024-10-11 16:45:30,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12465 conditions, 8705 events. 990/8705 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 73642 event pairs, 110 based on Foata normal form. 24/7942 useless extension candidates. Maximal degree in co-relation 11823. Up to 966 conditions per place. [2024-10-11 16:45:30,077 INFO L140 encePairwiseOnDemand]: 549/553 looper letters, 18 selfloop transitions, 3 changer transitions 0/589 dead transitions. [2024-10-11 16:45:30,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 589 transitions, 1643 flow [2024-10-11 16:45:30,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1600 transitions. [2024-10-11 16:45:30,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9644364074743822 [2024-10-11 16:45:30,082 INFO L175 Difference]: Start difference. First operand has 526 places, 603 transitions, 1682 flow. Second operand 3 states and 1600 transitions. [2024-10-11 16:45:30,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 589 transitions, 1643 flow [2024-10-11 16:45:30,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 589 transitions, 1615 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:30,106 INFO L231 Difference]: Finished difference. Result has 524 places, 583 transitions, 1571 flow [2024-10-11 16:45:30,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1556, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1571, PETRI_PLACES=524, PETRI_TRANSITIONS=583} [2024-10-11 16:45:30,107 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, -5 predicate places. [2024-10-11 16:45:30,107 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 583 transitions, 1571 flow [2024-10-11 16:45:30,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.0) internal successors, (1584), 3 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:30,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:30,108 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:30,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:30,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:30,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash -718512967, now seen corresponding path program 1 times [2024-10-11 16:45:30,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:30,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604770236] [2024-10-11 16:45:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:30,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:30,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604770236] [2024-10-11 16:45:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604770236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:30,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535734914] [2024-10-11 16:45:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:30,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:30,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:31,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 553 [2024-10-11 16:45:31,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 583 transitions, 1571 flow. Second operand has 6 states, 6 states have (on average 382.8333333333333) internal successors, (2297), 6 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:31,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:31,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 553 [2024-10-11 16:45:31,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:36,154 INFO L124 PetriNetUnfolderBase]: 6037/22361 cut-off events. [2024-10-11 16:45:36,155 INFO L125 PetriNetUnfolderBase]: For 4278/4509 co-relation queries the response was YES. [2024-10-11 16:45:36,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40939 conditions, 22361 events. 6037/22361 cut-off events. For 4278/4509 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 221900 event pairs, 3626 based on Foata normal form. 30/20347 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2024-10-11 16:45:36,263 INFO L140 encePairwiseOnDemand]: 504/553 looper letters, 228 selfloop transitions, 156 changer transitions 0/743 dead transitions. [2024-10-11 16:45:36,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 743 transitions, 2763 flow [2024-10-11 16:45:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:36,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2587 transitions. [2024-10-11 16:45:36,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7796865581675708 [2024-10-11 16:45:36,269 INFO L175 Difference]: Start difference. First operand has 524 places, 583 transitions, 1571 flow. Second operand 6 states and 2587 transitions. [2024-10-11 16:45:36,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 743 transitions, 2763 flow [2024-10-11 16:45:36,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 743 transitions, 2760 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:36,293 INFO L231 Difference]: Finished difference. Result has 532 places, 731 transitions, 2668 flow [2024-10-11 16:45:36,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1566, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2668, PETRI_PLACES=532, PETRI_TRANSITIONS=731} [2024-10-11 16:45:36,295 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, 3 predicate places. [2024-10-11 16:45:36,295 INFO L471 AbstractCegarLoop]: Abstraction has has 532 places, 731 transitions, 2668 flow [2024-10-11 16:45:36,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.8333333333333) internal successors, (2297), 6 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:36,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:36,296 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:36,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:36,297 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:36,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:36,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1402592322, now seen corresponding path program 1 times [2024-10-11 16:45:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:36,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084893314] [2024-10-11 16:45:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:36,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:36,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084893314] [2024-10-11 16:45:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084893314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:36,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408125383] [2024-10-11 16:45:36,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:36,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:36,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:36,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:36,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:38,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 553 [2024-10-11 16:45:38,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 731 transitions, 2668 flow. Second operand has 6 states, 6 states have (on average 467.1666666666667) internal successors, (2803), 6 states have internal predecessors, (2803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:38,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:38,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 553 [2024-10-11 16:45:38,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:40,506 INFO L124 PetriNetUnfolderBase]: 2881/14591 cut-off events. [2024-10-11 16:45:40,506 INFO L125 PetriNetUnfolderBase]: For 4558/5159 co-relation queries the response was YES. [2024-10-11 16:45:40,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27801 conditions, 14591 events. 2881/14591 cut-off events. For 4558/5159 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 140534 event pairs, 749 based on Foata normal form. 51/13351 useless extension candidates. Maximal degree in co-relation 26819. Up to 3595 conditions per place. [2024-10-11 16:45:40,568 INFO L140 encePairwiseOnDemand]: 528/553 looper letters, 182 selfloop transitions, 59 changer transitions 0/795 dead transitions. [2024-10-11 16:45:40,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 795 transitions, 3478 flow [2024-10-11 16:45:40,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2921 transitions. [2024-10-11 16:45:40,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8803496081977095 [2024-10-11 16:45:40,574 INFO L175 Difference]: Start difference. First operand has 532 places, 731 transitions, 2668 flow. Second operand 6 states and 2921 transitions. [2024-10-11 16:45:40,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 795 transitions, 3478 flow [2024-10-11 16:45:40,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 795 transitions, 3382 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:40,602 INFO L231 Difference]: Finished difference. Result has 541 places, 783 transitions, 3140 flow [2024-10-11 16:45:40,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=2570, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=707, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3140, PETRI_PLACES=541, PETRI_TRANSITIONS=783} [2024-10-11 16:45:40,603 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, 12 predicate places. [2024-10-11 16:45:40,603 INFO L471 AbstractCegarLoop]: Abstraction has has 541 places, 783 transitions, 3140 flow [2024-10-11 16:45:40,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 467.1666666666667) internal successors, (2803), 6 states have internal predecessors, (2803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:40,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:40,605 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:40,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:40,605 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:40,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:40,606 INFO L85 PathProgramCache]: Analyzing trace with hash -450860477, now seen corresponding path program 1 times [2024-10-11 16:45:40,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:40,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311739445] [2024-10-11 16:45:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:41,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:41,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311739445] [2024-10-11 16:45:41,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311739445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:41,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:41,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:41,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323657963] [2024-10-11 16:45:41,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:41,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:41,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:42,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 553 [2024-10-11 16:45:42,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 783 transitions, 3140 flow. Second operand has 6 states, 6 states have (on average 425.5) internal successors, (2553), 6 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:42,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:42,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 553 [2024-10-11 16:45:42,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:46,245 INFO L124 PetriNetUnfolderBase]: 4709/19176 cut-off events. [2024-10-11 16:45:46,245 INFO L125 PetriNetUnfolderBase]: For 8484/8818 co-relation queries the response was YES. [2024-10-11 16:45:46,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41175 conditions, 19176 events. 4709/19176 cut-off events. For 8484/8818 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188872 event pairs, 1581 based on Foata normal form. 59/17588 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2024-10-11 16:45:46,354 INFO L140 encePairwiseOnDemand]: 504/553 looper letters, 374 selfloop transitions, 156 changer transitions 0/943 dead transitions. [2024-10-11 16:45:46,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 943 transitions, 5008 flow [2024-10-11 16:45:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:46,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2797 transitions. [2024-10-11 16:45:46,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8429776974080772 [2024-10-11 16:45:46,360 INFO L175 Difference]: Start difference. First operand has 541 places, 783 transitions, 3140 flow. Second operand 6 states and 2797 transitions. [2024-10-11 16:45:46,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 943 transitions, 5008 flow [2024-10-11 16:45:46,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 943 transitions, 4912 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:46,406 INFO L231 Difference]: Finished difference. Result has 550 places, 931 transitions, 4528 flow [2024-10-11 16:45:46,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=3042, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=782, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=734, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4528, PETRI_PLACES=550, PETRI_TRANSITIONS=931} [2024-10-11 16:45:46,409 INFO L277 CegarLoopForPetriNet]: 529 programPoint places, 21 predicate places. [2024-10-11 16:45:46,409 INFO L471 AbstractCegarLoop]: Abstraction has has 550 places, 931 transitions, 4528 flow [2024-10-11 16:45:46,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 425.5) internal successors, (2553), 6 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:46,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:46,410 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:46,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:46,410 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:46,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1972701938, now seen corresponding path program 1 times [2024-10-11 16:45:46,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:46,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461576515] [2024-10-11 16:45:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:46,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:46,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:46,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461576515] [2024-10-11 16:45:46,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461576515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:46,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:46,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769187600] [2024-10-11 16:45:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:46,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:46,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:46,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:46,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:47,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 553 [2024-10-11 16:45:47,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 931 transitions, 4528 flow. Second operand has 6 states, 6 states have (on average 396.3333333333333) internal successors, (2378), 6 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:47,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:47,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 553 [2024-10-11 16:45:47,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand