./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/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:45:15,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:45:15,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:45:15,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:45:15,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:45:15,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:45:15,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:45:15,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:45:15,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:45:15,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:45:15,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:45:15,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:45:15,707 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:45:15,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:45:15,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:45:15,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:45:15,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:45:15,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:45:15,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:45:15,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:45:15,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:45:15,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:45:15,711 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:45:15,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:45:15,712 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:45:15,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:45:15,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:45:15,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:45:15,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:45:15,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:45:15,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:45:15,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:15,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:45:15,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:45:15,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:45:15,716 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:45:15,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:45:15,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:45:15,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:45:15,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:45:15,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:45:15,724 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2024-11-20 13:45:15,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:45:15,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:45:15,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:45:15,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:45:15,994 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:45:15,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-20 13:45:17,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:45:17,677 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:45:17,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-20 13:45:17,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d53b9eba/a18bb5e3b14644578a1509ebeb458ef0/FLAG428fe57ad [2024-11-20 13:45:17,983 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d53b9eba/a18bb5e3b14644578a1509ebeb458ef0 [2024-11-20 13:45:17,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:45:17,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:45:17,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:17,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:45:17,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:45:17,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1a5191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17, skipping insertion in model container [2024-11-20 13:45:17,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:18,053 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:45:18,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:18,546 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:45:18,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:18,635 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:45:18,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18 WrapperNode [2024-11-20 13:45:18,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:18,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:18,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:45:18,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:45:18,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,697 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 173 [2024-11-20 13:45:18,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:18,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:45:18,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:45:18,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:45:18,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:45:18,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:45:18,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:45:18,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:45:18,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (1/1) ... [2024-11-20 13:45:18,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:18,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:45:18,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:45:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:45:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:45:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:45:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:45:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:45:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:45:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:45:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:45:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:45:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:45:18,841 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:45:18,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:45:18,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:45:19,384 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:45:19,385 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:45:19,419 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:45:19,420 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 13:45:19,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:19 BoogieIcfgContainer [2024-11-20 13:45:19,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:45:19,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:45:19,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:45:19,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:45:19,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:45:17" (1/3) ... [2024-11-20 13:45:19,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fabe27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:19, skipping insertion in model container [2024-11-20 13:45:19,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:18" (2/3) ... [2024-11-20 13:45:19,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fabe27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:19, skipping insertion in model container [2024-11-20 13:45:19,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:19" (3/3) ... [2024-11-20 13:45:19,432 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2024-11-20 13:45:19,449 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:45:19,449 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-20 13:45:19,450 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:45:19,565 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:45:19,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 181 transitions, 366 flow [2024-11-20 13:45:19,681 INFO L124 PetriNetUnfolderBase]: 6/180 cut-off events. [2024-11-20 13:45:19,681 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:19,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 180 events. 6/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2024-11-20 13:45:19,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 181 transitions, 366 flow [2024-11-20 13:45:19,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 180 transitions, 363 flow [2024-11-20 13:45:19,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:45:19,724 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;@101ebda4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:45:19,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-20 13:45:19,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:45:19,761 INFO L124 PetriNetUnfolderBase]: 4/112 cut-off events. [2024-11-20 13:45:19,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:19,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:19,763 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] [2024-11-20 13:45:19,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:19,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -211118510, now seen corresponding path program 1 times [2024-11-20 13:45:19,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:19,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158311676] [2024-11-20 13:45:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:19,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:20,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:20,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158311676] [2024-11-20 13:45:20,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158311676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:20,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:20,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:45:20,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130613949] [2024-11-20 13:45:20,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:20,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:20,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:45:20,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-11-20 13:45:20,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 180 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:20,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:20,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-11-20 13:45:20,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:20,415 INFO L124 PetriNetUnfolderBase]: 14/335 cut-off events. [2024-11-20 13:45:20,416 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:20,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 335 events. 14/335 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 776 event pairs, 6 based on Foata normal form. 11/323 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2024-11-20 13:45:20,421 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2024-11-20 13:45:20,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2024-11-20 13:45:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-20 13:45:20,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-11-20 13:45:20,440 INFO L175 Difference]: Start difference. First operand has 178 places, 180 transitions, 363 flow. Second operand 3 states and 518 transitions. [2024-11-20 13:45:20,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2024-11-20 13:45:20,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:20,449 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2024-11-20 13:45:20,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2024-11-20 13:45:20,457 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2024-11-20 13:45:20,457 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2024-11-20 13:45:20,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:20,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:20,458 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] [2024-11-20 13:45:20,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:45:20,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:20,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1977973560, now seen corresponding path program 1 times [2024-11-20 13:45:20,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:20,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268736852] [2024-11-20 13:45:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:20,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:20,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:20,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268736852] [2024-11-20 13:45:20,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268736852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:20,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612653309] [2024-11-20 13:45:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:20,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:20,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:20,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:20,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:45:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:20,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 13:45:20,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:45:20,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:20,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612653309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:20,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:20,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-20 13:45:20,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793298920] [2024-11-20 13:45:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:20,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:20,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:20,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:20,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-11-20 13:45:20,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:20,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:20,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-11-20 13:45:20,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:21,012 INFO L124 PetriNetUnfolderBase]: 29/451 cut-off events. [2024-11-20 13:45:21,013 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:21,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 451 events. 29/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1512 event pairs, 8 based on Foata normal form. 3/426 useless extension candidates. Maximal degree in co-relation 439. Up to 39 conditions per place. [2024-11-20 13:45:21,021 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-20 13:45:21,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2024-11-20 13:45:21,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-20 13:45:21,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-11-20 13:45:21,027 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2024-11-20 13:45:21,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2024-11-20 13:45:21,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:21,032 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2024-11-20 13:45:21,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2024-11-20 13:45:21,035 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2024-11-20 13:45:21,035 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2024-11-20 13:45:21,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:21,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:21,036 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] [2024-11-20 13:45:21,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 13:45:21,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:21,238 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:21,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:21,239 INFO L85 PathProgramCache]: Analyzing trace with hash 261699259, now seen corresponding path program 1 times [2024-11-20 13:45:21,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:21,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862895252] [2024-11-20 13:45:21,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:21,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:21,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862895252] [2024-11-20 13:45:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862895252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302988220] [2024-11-20 13:45:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:21,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:21,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:21,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:21,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:45:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:21,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:45:21,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:21,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:21,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302988220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:21,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:21,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:45:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705616987] [2024-11-20 13:45:21,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:21,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:45:21,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:21,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:45:21,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:45:21,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-20 13:45:21,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:21,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:21,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-20 13:45:21,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:21,803 INFO L124 PetriNetUnfolderBase]: 15/395 cut-off events. [2024-11-20 13:45:21,804 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:21,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 395 events. 15/395 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1098 event pairs, 10 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2024-11-20 13:45:21,806 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2024-11-20 13:45:21,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2024-11-20 13:45:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:21,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2024-11-20 13:45:21,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9214241866175568 [2024-11-20 13:45:21,811 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2024-11-20 13:45:21,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2024-11-20 13:45:21,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:21,815 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2024-11-20 13:45:21,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2024-11-20 13:45:21,816 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2024-11-20 13:45:21,816 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2024-11-20 13:45:21,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:21,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:21,818 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:21,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 13:45:22,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 13:45:22,023 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:22,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:22,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1127065211, now seen corresponding path program 2 times [2024-11-20 13:45:22,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:22,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426315082] [2024-11-20 13:45:22,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:22,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:22,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426315082] [2024-11-20 13:45:22,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426315082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99801081] [2024-11-20 13:45:22,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:22,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:22,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:22,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:22,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:45:22,321 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:45:22,322 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:22,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:45:22,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:22,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 13:45:22,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-20 13:45:22,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:22,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-20 13:45:22,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:22,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-20 13:45:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 13:45:22,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:22,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99801081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:22,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:22,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-20 13:45:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779623136] [2024-11-20 13:45:22,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:22,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:22,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:22,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:22,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:22,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:22,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:23,098 INFO L124 PetriNetUnfolderBase]: 355/1812 cut-off events. [2024-11-20 13:45:23,099 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:45:23,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 1812 events. 355/1812 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12665 event pairs, 172 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2476. Up to 583 conditions per place. [2024-11-20 13:45:23,108 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 34 selfloop transitions, 38 changer transitions 0/230 dead transitions. [2024-11-20 13:45:23,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 230 transitions, 660 flow [2024-11-20 13:45:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2024-11-20 13:45:23,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9014732965009208 [2024-11-20 13:45:23,112 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 979 transitions. [2024-11-20 13:45:23,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 230 transitions, 660 flow [2024-11-20 13:45:23,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 230 transitions, 654 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:23,116 INFO L231 Difference]: Finished difference. Result has 201 places, 222 transitions, 674 flow [2024-11-20 13:45:23,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=674, PETRI_PLACES=201, PETRI_TRANSITIONS=222} [2024-11-20 13:45:23,118 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2024-11-20 13:45:23,118 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 222 transitions, 674 flow [2024-11-20 13:45:23,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:23,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:23,119 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:23,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 13:45:23,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:23,320 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:23,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:23,320 INFO L85 PathProgramCache]: Analyzing trace with hash -378395017, now seen corresponding path program 1 times [2024-11-20 13:45:23,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:23,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700818150] [2024-11-20 13:45:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:23,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:23,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700818150] [2024-11-20 13:45:23,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700818150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009692509] [2024-11-20 13:45:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:23,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:23,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:23,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:23,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:45:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:23,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:45:23,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:23,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:23,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009692509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:23,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:23,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:45:23,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125443357] [2024-11-20 13:45:23,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:23,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:45:23,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:45:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:45:23,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-20 13:45:23,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 222 transitions, 674 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:23,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:23,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-20 13:45:23,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:24,170 INFO L124 PetriNetUnfolderBase]: 133/1064 cut-off events. [2024-11-20 13:45:24,170 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-11-20 13:45:24,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1064 events. 133/1064 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5973 event pairs, 28 based on Foata normal form. 4/1012 useless extension candidates. Maximal degree in co-relation 1479. Up to 177 conditions per place. [2024-11-20 13:45:24,177 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 18 selfloop transitions, 21 changer transitions 0/240 dead transitions. [2024-11-20 13:45:24,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 240 transitions, 840 flow [2024-11-20 13:45:24,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:45:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:45:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2024-11-20 13:45:24,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173901604840832 [2024-11-20 13:45:24,185 INFO L175 Difference]: Start difference. First operand has 201 places, 222 transitions, 674 flow. Second operand 21 states and 3487 transitions. [2024-11-20 13:45:24,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 240 transitions, 840 flow [2024-11-20 13:45:24,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 240 transitions, 840 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:24,193 INFO L231 Difference]: Finished difference. Result has 226 places, 235 transitions, 804 flow [2024-11-20 13:45:24,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=804, PETRI_PLACES=226, PETRI_TRANSITIONS=235} [2024-11-20 13:45:24,194 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2024-11-20 13:45:24,194 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 235 transitions, 804 flow [2024-11-20 13:45:24,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:24,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:24,197 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:24,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:45:24,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:24,398 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:24,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -271780361, now seen corresponding path program 2 times [2024-11-20 13:45:24,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:24,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884431127] [2024-11-20 13:45:24,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:24,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:24,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:24,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884431127] [2024-11-20 13:45:24,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884431127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:24,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954080565] [2024-11-20 13:45:24,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:24,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:24,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:24,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:24,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:45:24,846 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:45:24,847 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:24,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 13:45:24,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:24,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 13:45:24,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-20 13:45:24,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:24,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-20 13:45:24,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:24,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-20 13:45:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-20 13:45:24,977 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:24,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954080565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:24,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:24,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-20 13:45:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569729407] [2024-11-20 13:45:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:24,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:24,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:24,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-20 13:45:25,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:25,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 235 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:25,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:25,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:25,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:25,550 INFO L124 PetriNetUnfolderBase]: 451/2077 cut-off events. [2024-11-20 13:45:25,550 INFO L125 PetriNetUnfolderBase]: For 479/531 co-relation queries the response was YES. [2024-11-20 13:45:25,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2077 events. 451/2077 cut-off events. For 479/531 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14627 event pairs, 153 based on Foata normal form. 13/1992 useless extension candidates. Maximal degree in co-relation 3542. Up to 712 conditions per place. [2024-11-20 13:45:25,561 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 67 selfloop transitions, 30 changer transitions 0/272 dead transitions. [2024-11-20 13:45:25,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1114 flow [2024-11-20 13:45:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:25,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2024-11-20 13:45:25,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8867403314917127 [2024-11-20 13:45:25,564 INFO L175 Difference]: Start difference. First operand has 226 places, 235 transitions, 804 flow. Second operand 6 states and 963 transitions. [2024-11-20 13:45:25,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1114 flow [2024-11-20 13:45:25,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1090 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-20 13:45:25,573 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2024-11-20 13:45:25,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2024-11-20 13:45:25,576 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2024-11-20 13:45:25,576 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2024-11-20 13:45:25,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:25,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:25,577 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:25,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:45:25,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:25,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:25,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash 631674752, now seen corresponding path program 1 times [2024-11-20 13:45:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:25,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293054787] [2024-11-20 13:45:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:26,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:26,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293054787] [2024-11-20 13:45:26,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293054787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:26,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576171118] [2024-11-20 13:45:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:26,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:26,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:26,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 13:45:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:26,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 13:45:26,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:26,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:26,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576171118] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:26,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:26,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-20 13:45:26,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192548756] [2024-11-20 13:45:26,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:26,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 13:45:26,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:26,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 13:45:26,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:45:26,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-20 13:45:26,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:26,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:26,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-20 13:45:26,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:27,087 INFO L124 PetriNetUnfolderBase]: 236/1582 cut-off events. [2024-11-20 13:45:27,088 INFO L125 PetriNetUnfolderBase]: For 548/581 co-relation queries the response was YES. [2024-11-20 13:45:27,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2913 conditions, 1582 events. 236/1582 cut-off events. For 548/581 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10196 event pairs, 35 based on Foata normal form. 13/1528 useless extension candidates. Maximal degree in co-relation 2636. Up to 221 conditions per place. [2024-11-20 13:45:27,097 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2024-11-20 13:45:27,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2024-11-20 13:45:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 13:45:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-20 13:45:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2024-11-20 13:45:27,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9160220994475138 [2024-11-20 13:45:27,107 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2024-11-20 13:45:27,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2024-11-20 13:45:27,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:27,120 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2024-11-20 13:45:27,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2024-11-20 13:45:27,122 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2024-11-20 13:45:27,122 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2024-11-20 13:45:27,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:27,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:27,126 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:27,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 13:45:27,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:27,330 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:27,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:27,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1177218906, now seen corresponding path program 2 times [2024-11-20 13:45:27,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:27,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416329082] [2024-11-20 13:45:27,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:27,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:27,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416329082] [2024-11-20 13:45:27,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416329082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:27,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:27,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:27,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770057196] [2024-11-20 13:45:27,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:27,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:28,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-11-20 13:45:28,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:28,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:28,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-11-20 13:45:28,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:28,808 INFO L124 PetriNetUnfolderBase]: 1000/3561 cut-off events. [2024-11-20 13:45:28,809 INFO L125 PetriNetUnfolderBase]: For 1857/1926 co-relation queries the response was YES. [2024-11-20 13:45:28,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 3561 events. 1000/3561 cut-off events. For 1857/1926 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26719 event pairs, 304 based on Foata normal form. 18/3379 useless extension candidates. Maximal degree in co-relation 7663. Up to 1732 conditions per place. [2024-11-20 13:45:28,835 INFO L140 encePairwiseOnDemand]: 158/181 looper letters, 100 selfloop transitions, 89 changer transitions 0/361 dead transitions. [2024-11-20 13:45:28,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 361 transitions, 1900 flow [2024-11-20 13:45:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2024-11-20 13:45:28,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848987108655617 [2024-11-20 13:45:28,838 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 961 transitions. [2024-11-20 13:45:28,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 361 transitions, 1900 flow [2024-11-20 13:45:28,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 361 transitions, 1854 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-20 13:45:28,855 INFO L231 Difference]: Finished difference. Result has 255 places, 353 transitions, 1874 flow [2024-11-20 13:45:28,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1874, PETRI_PLACES=255, PETRI_TRANSITIONS=353} [2024-11-20 13:45:28,856 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2024-11-20 13:45:28,856 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 353 transitions, 1874 flow [2024-11-20 13:45:28,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:28,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:28,857 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:28,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:45:28,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:28,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash -723352546, now seen corresponding path program 1 times [2024-11-20 13:45:28,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:28,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171400027] [2024-11-20 13:45:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:28,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:29,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:29,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171400027] [2024-11-20 13:45:29,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171400027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:29,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:29,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:29,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395015154] [2024-11-20 13:45:29,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:29,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:29,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:29,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:29,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:29,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-11-20 13:45:29,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 353 transitions, 1874 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:29,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:29,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-11-20 13:45:29,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:30,394 INFO L124 PetriNetUnfolderBase]: 1203/4090 cut-off events. [2024-11-20 13:45:30,395 INFO L125 PetriNetUnfolderBase]: For 4645/4768 co-relation queries the response was YES. [2024-11-20 13:45:30,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10932 conditions, 4090 events. 1203/4090 cut-off events. For 4645/4768 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 30853 event pairs, 276 based on Foata normal form. 21/3965 useless extension candidates. Maximal degree in co-relation 10671. Up to 1975 conditions per place. [2024-11-20 13:45:30,430 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 71 changer transitions 0/414 dead transitions. [2024-11-20 13:45:30,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2708 flow [2024-11-20 13:45:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:30,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2024-11-20 13:45:30,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8554327808471455 [2024-11-20 13:45:30,433 INFO L175 Difference]: Start difference. First operand has 255 places, 353 transitions, 1874 flow. Second operand 6 states and 929 transitions. [2024-11-20 13:45:30,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2708 flow [2024-11-20 13:45:30,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2612 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:30,470 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2454 flow [2024-11-20 13:45:30,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2454, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2024-11-20 13:45:30,472 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2024-11-20 13:45:30,472 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2454 flow [2024-11-20 13:45:30,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:30,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:30,473 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:30,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:45:30,473 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:30,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1817390323, now seen corresponding path program 1 times [2024-11-20 13:45:30,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:30,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207805580] [2024-11-20 13:45:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:31,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:31,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207805580] [2024-11-20 13:45:31,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207805580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:31,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:31,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:31,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304606349] [2024-11-20 13:45:31,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:31,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:31,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:31,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:31,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:32,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:32,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2454 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:32,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:32,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:32,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:34,219 INFO L124 PetriNetUnfolderBase]: 2157/8130 cut-off events. [2024-11-20 13:45:34,219 INFO L125 PetriNetUnfolderBase]: For 10431/10670 co-relation queries the response was YES. [2024-11-20 13:45:34,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22215 conditions, 8130 events. 2157/8130 cut-off events. For 10431/10670 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 74184 event pairs, 297 based on Foata normal form. 73/8074 useless extension candidates. Maximal degree in co-relation 21937. Up to 1356 conditions per place. [2024-11-20 13:45:34,302 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 74 selfloop transitions, 15 changer transitions 2/469 dead transitions. [2024-11-20 13:45:34,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 469 transitions, 2794 flow [2024-11-20 13:45:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2024-11-20 13:45:34,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882750153468385 [2024-11-20 13:45:34,311 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2454 flow. Second operand 9 states and 1447 transitions. [2024-11-20 13:45:34,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 469 transitions, 2794 flow [2024-11-20 13:45:34,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 469 transitions, 2712 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:34,390 INFO L231 Difference]: Finished difference. Result has 280 places, 421 transitions, 2490 flow [2024-11-20 13:45:34,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=280, PETRI_TRANSITIONS=421} [2024-11-20 13:45:34,391 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2024-11-20 13:45:34,391 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 421 transitions, 2490 flow [2024-11-20 13:45:34,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:34,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:34,392 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:34,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:45:34,393 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:34,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:34,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1367447591, now seen corresponding path program 2 times [2024-11-20 13:45:34,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:34,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578318041] [2024-11-20 13:45:34,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:34,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:35,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:35,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578318041] [2024-11-20 13:45:35,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578318041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:35,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:35,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91309187] [2024-11-20 13:45:35,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:35,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:35,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:35,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:35,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:36,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:36,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 421 transitions, 2490 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:36,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:36,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:36,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:38,101 INFO L124 PetriNetUnfolderBase]: 2461/9026 cut-off events. [2024-11-20 13:45:38,101 INFO L125 PetriNetUnfolderBase]: For 12350/12657 co-relation queries the response was YES. [2024-11-20 13:45:38,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25977 conditions, 9026 events. 2461/9026 cut-off events. For 12350/12657 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 84796 event pairs, 299 based on Foata normal form. 80/8946 useless extension candidates. Maximal degree in co-relation 25691. Up to 1603 conditions per place. [2024-11-20 13:45:38,172 INFO L140 encePairwiseOnDemand]: 168/181 looper letters, 113 selfloop transitions, 20 changer transitions 0/511 dead transitions. [2024-11-20 13:45:38,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 511 transitions, 3154 flow [2024-11-20 13:45:38,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1446 transitions. [2024-11-20 13:45:38,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8876611418047882 [2024-11-20 13:45:38,179 INFO L175 Difference]: Start difference. First operand has 280 places, 421 transitions, 2490 flow. Second operand 9 states and 1446 transitions. [2024-11-20 13:45:38,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 511 transitions, 3154 flow [2024-11-20 13:45:38,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 511 transitions, 3154 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:38,258 INFO L231 Difference]: Finished difference. Result has 295 places, 437 transitions, 2664 flow [2024-11-20 13:45:38,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2664, PETRI_PLACES=295, PETRI_TRANSITIONS=437} [2024-11-20 13:45:38,259 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 117 predicate places. [2024-11-20 13:45:38,260 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 437 transitions, 2664 flow [2024-11-20 13:45:38,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:38,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:38,261 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:38,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:45:38,261 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:38,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash 405411171, now seen corresponding path program 3 times [2024-11-20 13:45:38,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:38,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286431224] [2024-11-20 13:45:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:38,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:38,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:38,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286431224] [2024-11-20 13:45:38,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286431224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:38,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:38,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:38,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363454051] [2024-11-20 13:45:38,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:38,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:38,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:38,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:38,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:40,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:40,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 437 transitions, 2664 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:40,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:40,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:40,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:42,108 INFO L124 PetriNetUnfolderBase]: 2736/10058 cut-off events. [2024-11-20 13:45:42,109 INFO L125 PetriNetUnfolderBase]: For 16127/16587 co-relation queries the response was YES. [2024-11-20 13:45:42,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30201 conditions, 10058 events. 2736/10058 cut-off events. For 16127/16587 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 95471 event pairs, 315 based on Foata normal form. 104/10013 useless extension candidates. Maximal degree in co-relation 29907. Up to 1744 conditions per place. [2024-11-20 13:45:42,179 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 119 selfloop transitions, 22 changer transitions 2/521 dead transitions. [2024-11-20 13:45:42,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 521 transitions, 3458 flow [2024-11-20 13:45:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2024-11-20 13:45:42,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8913443830570903 [2024-11-20 13:45:42,183 INFO L175 Difference]: Start difference. First operand has 295 places, 437 transitions, 2664 flow. Second operand 9 states and 1452 transitions. [2024-11-20 13:45:42,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 521 transitions, 3458 flow [2024-11-20 13:45:42,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 521 transitions, 3417 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:42,275 INFO L231 Difference]: Finished difference. Result has 307 places, 449 transitions, 2835 flow [2024-11-20 13:45:42,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2649, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2835, PETRI_PLACES=307, PETRI_TRANSITIONS=449} [2024-11-20 13:45:42,278 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 129 predicate places. [2024-11-20 13:45:42,279 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 449 transitions, 2835 flow [2024-11-20 13:45:42,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:42,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:42,280 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:42,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:45:42,280 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:42,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:42,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1487146101, now seen corresponding path program 4 times [2024-11-20 13:45:42,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:42,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87488487] [2024-11-20 13:45:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:42,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:42,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:42,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87488487] [2024-11-20 13:45:42,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87488487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:42,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:42,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729331776] [2024-11-20 13:45:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:42,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:42,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:42,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:44,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:44,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 449 transitions, 2835 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:44,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:44,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:44,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:46,129 INFO L124 PetriNetUnfolderBase]: 3055/11086 cut-off events. [2024-11-20 13:45:46,129 INFO L125 PetriNetUnfolderBase]: For 19927/20397 co-relation queries the response was YES. [2024-11-20 13:45:46,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34182 conditions, 11086 events. 3055/11086 cut-off events. For 19927/20397 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 106920 event pairs, 318 based on Foata normal form. 119/11032 useless extension candidates. Maximal degree in co-relation 33882. Up to 1981 conditions per place. [2024-11-20 13:45:46,221 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 134 selfloop transitions, 27 changer transitions 0/539 dead transitions. [2024-11-20 13:45:46,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 539 transitions, 3784 flow [2024-11-20 13:45:46,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2024-11-20 13:45:46,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8913443830570903 [2024-11-20 13:45:46,224 INFO L175 Difference]: Start difference. First operand has 307 places, 449 transitions, 2835 flow. Second operand 9 states and 1452 transitions. [2024-11-20 13:45:46,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 539 transitions, 3784 flow [2024-11-20 13:45:46,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 539 transitions, 3705 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-20 13:45:46,329 INFO L231 Difference]: Finished difference. Result has 317 places, 461 transitions, 3011 flow [2024-11-20 13:45:46,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2809, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3011, PETRI_PLACES=317, PETRI_TRANSITIONS=461} [2024-11-20 13:45:46,331 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 139 predicate places. [2024-11-20 13:45:46,331 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 461 transitions, 3011 flow [2024-11-20 13:45:46,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:46,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:46,332 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:46,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:45:46,332 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:46,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:46,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1048511887, now seen corresponding path program 5 times [2024-11-20 13:45:46,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:46,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484393250] [2024-11-20 13:45:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:46,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:46,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:46,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484393250] [2024-11-20 13:45:46,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484393250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:46,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874639838] [2024-11-20 13:45:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:46,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:47,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:47,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 461 transitions, 3011 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:47,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:47,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:47,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:50,194 INFO L124 PetriNetUnfolderBase]: 3363/12284 cut-off events. [2024-11-20 13:45:50,194 INFO L125 PetriNetUnfolderBase]: For 24949/25542 co-relation queries the response was YES. [2024-11-20 13:45:50,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38683 conditions, 12284 events. 3363/12284 cut-off events. For 24949/25542 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 120966 event pairs, 345 based on Foata normal form. 113/12227 useless extension candidates. Maximal degree in co-relation 38378. Up to 2138 conditions per place. [2024-11-20 13:45:50,293 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 134 selfloop transitions, 29 changer transitions 1/542 dead transitions. [2024-11-20 13:45:50,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 542 transitions, 3997 flow [2024-11-20 13:45:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2024-11-20 13:45:50,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931860036832413 [2024-11-20 13:45:50,296 INFO L175 Difference]: Start difference. First operand has 317 places, 461 transitions, 3011 flow. Second operand 9 states and 1455 transitions. [2024-11-20 13:45:50,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 542 transitions, 3997 flow [2024-11-20 13:45:50,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 542 transitions, 3906 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-20 13:45:50,436 INFO L231 Difference]: Finished difference. Result has 328 places, 476 transitions, 3253 flow [2024-11-20 13:45:50,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2970, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3253, PETRI_PLACES=328, PETRI_TRANSITIONS=476} [2024-11-20 13:45:50,438 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 150 predicate places. [2024-11-20 13:45:50,438 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 476 transitions, 3253 flow [2024-11-20 13:45:50,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:50,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:50,439 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:50,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:45:50,440 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:50,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:50,440 INFO L85 PathProgramCache]: Analyzing trace with hash -756537319, now seen corresponding path program 6 times [2024-11-20 13:45:50,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:50,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272982037] [2024-11-20 13:45:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:50,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:50,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:50,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272982037] [2024-11-20 13:45:50,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272982037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:50,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:50,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187497367] [2024-11-20 13:45:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:50,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:52,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:52,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 476 transitions, 3253 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:52,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:52,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:52,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:54,743 INFO L124 PetriNetUnfolderBase]: 3707/13415 cut-off events. [2024-11-20 13:45:54,743 INFO L125 PetriNetUnfolderBase]: For 31084/31703 co-relation queries the response was YES. [2024-11-20 13:45:54,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43283 conditions, 13415 events. 3707/13415 cut-off events. For 31084/31703 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 134676 event pairs, 368 based on Foata normal form. 120/13341 useless extension candidates. Maximal degree in co-relation 42972. Up to 2363 conditions per place. [2024-11-20 13:45:54,851 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 150 selfloop transitions, 34 changer transitions 0/562 dead transitions. [2024-11-20 13:45:54,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 562 transitions, 4377 flow [2024-11-20 13:45:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:54,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2024-11-20 13:45:54,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931860036832413 [2024-11-20 13:45:54,854 INFO L175 Difference]: Start difference. First operand has 328 places, 476 transitions, 3253 flow. Second operand 9 states and 1455 transitions. [2024-11-20 13:45:54,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 562 transitions, 4377 flow [2024-11-20 13:45:54,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 562 transitions, 4281 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:55,006 INFO L231 Difference]: Finished difference. Result has 340 places, 491 transitions, 3496 flow [2024-11-20 13:45:55,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3194, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3496, PETRI_PLACES=340, PETRI_TRANSITIONS=491} [2024-11-20 13:45:55,008 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 162 predicate places. [2024-11-20 13:45:55,008 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 491 transitions, 3496 flow [2024-11-20 13:45:55,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:55,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:55,009 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:55,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:45:55,009 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:55,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1594130475, now seen corresponding path program 7 times [2024-11-20 13:45:55,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:55,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316754591] [2024-11-20 13:45:55,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:55,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:55,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:55,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316754591] [2024-11-20 13:45:55,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316754591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:55,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:55,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:55,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490836992] [2024-11-20 13:45:55,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:55,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:55,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:55,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:55,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:56,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:45:56,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 491 transitions, 3496 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:56,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:56,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:45:56,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:59,504 INFO L124 PetriNetUnfolderBase]: 4051/14662 cut-off events. [2024-11-20 13:45:59,504 INFO L125 PetriNetUnfolderBase]: For 39610/40292 co-relation queries the response was YES. [2024-11-20 13:45:59,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48604 conditions, 14662 events. 4051/14662 cut-off events. For 39610/40292 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 149929 event pairs, 441 based on Foata normal form. 112/14568 useless extension candidates. Maximal degree in co-relation 48287. Up to 2511 conditions per place. [2024-11-20 13:45:59,612 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 148 selfloop transitions, 36 changer transitions 0/562 dead transitions. [2024-11-20 13:45:59,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 562 transitions, 4599 flow [2024-11-20 13:45:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:59,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2024-11-20 13:45:59,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.894413750767342 [2024-11-20 13:45:59,615 INFO L175 Difference]: Start difference. First operand has 340 places, 491 transitions, 3496 flow. Second operand 9 states and 1457 transitions. [2024-11-20 13:45:59,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 562 transitions, 4599 flow [2024-11-20 13:45:59,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 562 transitions, 4499 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:59,773 INFO L231 Difference]: Finished difference. Result has 353 places, 510 transitions, 3852 flow [2024-11-20 13:45:59,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3418, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3852, PETRI_PLACES=353, PETRI_TRANSITIONS=510} [2024-11-20 13:45:59,773 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 175 predicate places. [2024-11-20 13:45:59,773 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 510 transitions, 3852 flow [2024-11-20 13:45:59,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:59,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:59,774 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:59,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:45:59,774 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:45:59,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1531376013, now seen corresponding path program 8 times [2024-11-20 13:45:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:59,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635285655] [2024-11-20 13:45:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:59,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:00,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:00,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635285655] [2024-11-20 13:46:00,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635285655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:00,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:00,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:00,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194571935] [2024-11-20 13:46:00,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:00,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:00,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:00,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:00,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:46:00,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 510 transitions, 3852 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:00,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:00,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:46:00,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:04,146 INFO L124 PetriNetUnfolderBase]: 4625/16561 cut-off events. [2024-11-20 13:46:04,146 INFO L125 PetriNetUnfolderBase]: For 50316/51214 co-relation queries the response was YES. [2024-11-20 13:46:04,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56132 conditions, 16561 events. 4625/16561 cut-off events. For 50316/51214 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 174797 event pairs, 462 based on Foata normal form. 139/16490 useless extension candidates. Maximal degree in co-relation 55808. Up to 2908 conditions per place. [2024-11-20 13:46:04,265 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 45 changer transitions 0/592 dead transitions. [2024-11-20 13:46:04,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 592 transitions, 5156 flow [2024-11-20 13:46:04,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:04,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2024-11-20 13:46:04,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956414978514426 [2024-11-20 13:46:04,267 INFO L175 Difference]: Start difference. First operand has 353 places, 510 transitions, 3852 flow. Second operand 9 states and 1459 transitions. [2024-11-20 13:46:04,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 592 transitions, 5156 flow [2024-11-20 13:46:04,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 592 transitions, 5052 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-20 13:46:04,480 INFO L231 Difference]: Finished difference. Result has 368 places, 528 transitions, 4205 flow [2024-11-20 13:46:04,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3748, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4205, PETRI_PLACES=368, PETRI_TRANSITIONS=528} [2024-11-20 13:46:04,481 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 190 predicate places. [2024-11-20 13:46:04,481 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 528 transitions, 4205 flow [2024-11-20 13:46:04,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:04,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:04,482 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:04,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:46:04,482 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:46:04,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:04,483 INFO L85 PathProgramCache]: Analyzing trace with hash 345094149, now seen corresponding path program 9 times [2024-11-20 13:46:04,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:04,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605374315] [2024-11-20 13:46:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:04,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:04,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:04,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605374315] [2024-11-20 13:46:04,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605374315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:04,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:04,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:04,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401297696] [2024-11-20 13:46:04,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:04,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:04,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:04,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:04,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:05,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:46:05,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 528 transitions, 4205 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:05,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:05,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:46:05,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:09,246 INFO L124 PetriNetUnfolderBase]: 5214/18628 cut-off events. [2024-11-20 13:46:09,247 INFO L125 PetriNetUnfolderBase]: For 62392/63410 co-relation queries the response was YES. [2024-11-20 13:46:09,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64475 conditions, 18628 events. 5214/18628 cut-off events. For 62392/63410 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 202609 event pairs, 506 based on Foata normal form. 152/18561 useless extension candidates. Maximal degree in co-relation 64143. Up to 3261 conditions per place. [2024-11-20 13:46:09,407 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 184 selfloop transitions, 46 changer transitions 0/608 dead transitions. [2024-11-20 13:46:09,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 608 transitions, 5463 flow [2024-11-20 13:46:09,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2024-11-20 13:46:09,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956414978514426 [2024-11-20 13:46:09,410 INFO L175 Difference]: Start difference. First operand has 368 places, 528 transitions, 4205 flow. Second operand 9 states and 1459 transitions. [2024-11-20 13:46:09,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 608 transitions, 5463 flow [2024-11-20 13:46:09,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 608 transitions, 5377 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-20 13:46:09,668 INFO L231 Difference]: Finished difference. Result has 382 places, 545 transitions, 4528 flow [2024-11-20 13:46:09,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4119, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4528, PETRI_PLACES=382, PETRI_TRANSITIONS=545} [2024-11-20 13:46:09,669 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 204 predicate places. [2024-11-20 13:46:09,669 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 545 transitions, 4528 flow [2024-11-20 13:46:09,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:09,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:09,670 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:09,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:46:09,670 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:46:09,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash -860810265, now seen corresponding path program 10 times [2024-11-20 13:46:09,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:09,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717995370] [2024-11-20 13:46:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:09,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:09,977 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:09,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:09,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717995370] [2024-11-20 13:46:09,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717995370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:09,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:09,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748255301] [2024-11-20 13:46:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:09,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:09,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:09,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:11,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:46:11,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 545 transitions, 4528 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:11,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:11,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:46:11,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:15,391 INFO L124 PetriNetUnfolderBase]: 5502/19566 cut-off events. [2024-11-20 13:46:15,392 INFO L125 PetriNetUnfolderBase]: For 70591/71676 co-relation queries the response was YES. [2024-11-20 13:46:15,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68670 conditions, 19566 events. 5502/19566 cut-off events. For 70591/71676 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215180 event pairs, 533 based on Foata normal form. 169/19510 useless extension candidates. Maximal degree in co-relation 68331. Up to 3443 conditions per place. [2024-11-20 13:46:15,565 INFO L140 encePairwiseOnDemand]: 165/181 looper letters, 183 selfloop transitions, 53 changer transitions 0/614 dead transitions. [2024-11-20 13:46:15,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 614 transitions, 5830 flow [2024-11-20 13:46:15,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1461 transitions. [2024-11-20 13:46:15,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8968692449355433 [2024-11-20 13:46:15,567 INFO L175 Difference]: Start difference. First operand has 382 places, 545 transitions, 4528 flow. Second operand 9 states and 1461 transitions. [2024-11-20 13:46:15,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 614 transitions, 5830 flow [2024-11-20 13:46:15,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 614 transitions, 5677 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-20 13:46:15,884 INFO L231 Difference]: Finished difference. Result has 392 places, 559 transitions, 4807 flow [2024-11-20 13:46:15,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4431, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4807, PETRI_PLACES=392, PETRI_TRANSITIONS=559} [2024-11-20 13:46:15,885 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 214 predicate places. [2024-11-20 13:46:15,885 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 559 transitions, 4807 flow [2024-11-20 13:46:15,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:15,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:15,886 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:15,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:46:15,886 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:46:15,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1924182501, now seen corresponding path program 11 times [2024-11-20 13:46:15,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:15,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817833487] [2024-11-20 13:46:15,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:15,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817833487] [2024-11-20 13:46:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817833487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689409807] [2024-11-20 13:46:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:16,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:16,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:17,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:46:17,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 559 transitions, 4807 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:17,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:17,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:46:17,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:21,155 INFO L124 PetriNetUnfolderBase]: 5530/19627 cut-off events. [2024-11-20 13:46:21,155 INFO L125 PetriNetUnfolderBase]: For 75691/76758 co-relation queries the response was YES. [2024-11-20 13:46:21,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69578 conditions, 19627 events. 5530/19627 cut-off events. For 75691/76758 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215676 event pairs, 531 based on Foata normal form. 177/19565 useless extension candidates. Maximal degree in co-relation 69235. Up to 3452 conditions per place. [2024-11-20 13:46:21,346 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 186 selfloop transitions, 57 changer transitions 0/621 dead transitions. [2024-11-20 13:46:21,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 621 transitions, 6033 flow [2024-11-20 13:46:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1462 transitions. [2024-11-20 13:46:21,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8974831184775937 [2024-11-20 13:46:21,349 INFO L175 Difference]: Start difference. First operand has 392 places, 559 transitions, 4807 flow. Second operand 9 states and 1462 transitions. [2024-11-20 13:46:21,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 621 transitions, 6033 flow [2024-11-20 13:46:21,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 621 transitions, 5873 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-20 13:46:21,812 INFO L231 Difference]: Finished difference. Result has 401 places, 571 transitions, 5077 flow [2024-11-20 13:46:21,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4671, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5077, PETRI_PLACES=401, PETRI_TRANSITIONS=571} [2024-11-20 13:46:21,813 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 223 predicate places. [2024-11-20 13:46:21,813 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 571 transitions, 5077 flow [2024-11-20 13:46:21,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:21,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:21,814 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 13:46:21,815 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:46:21,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1754741371, now seen corresponding path program 12 times [2024-11-20 13:46:21,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:21,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654964752] [2024-11-20 13:46:21,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:22,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654964752] [2024-11-20 13:46:22,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654964752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:22,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:22,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314669205] [2024-11-20 13:46:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:22,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:22,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:22,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-20 13:46:22,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 571 transitions, 5077 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:22,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:22,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-20 13:46:22,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand