./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:30:27,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:30:27,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:30:27,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:30:27,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:30:27,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:30:27,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:30:27,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:30:27,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:30:27,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:30:27,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:30:27,384 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:30:27,384 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:30:27,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:30:27,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:30:27,385 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:30:27,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:30:27,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:30:27,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:30:27,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:30:27,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:30:27,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:30:27,387 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:30:27,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:30:27,387 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:30:27,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:30:27,387 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:30:27,387 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:30:27,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:30:27,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:30:27,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:30:27,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:30:27,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:30:27,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:30:27,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:30:27,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:30:27,390 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2025-02-08 05:30:27,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:30:27,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:30:27,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:30:27,683 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:30:27,683 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:30:27,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-02-08 05:30:28,981 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d445b79f/18e521a5341f42618caab9f96cfbf0fe/FLAG673651333 [2025-02-08 05:30:29,313 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:30:29,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-02-08 05:30:29,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d445b79f/18e521a5341f42618caab9f96cfbf0fe/FLAG673651333 [2025-02-08 05:30:29,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d445b79f/18e521a5341f42618caab9f96cfbf0fe [2025-02-08 05:30:29,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:30:29,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:30:29,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:30:29,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:30:29,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:30:29,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608424ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29, skipping insertion in model container [2025-02-08 05:30:29,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:30:29,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:30:29,807 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:30:29,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:30:29,895 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:30:29,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29 WrapperNode [2025-02-08 05:30:29,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:30:29,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:30:29,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:30:29,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:30:29,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,932 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2025-02-08 05:30:29,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:30:29,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:30:29,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:30:29,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:30:29,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,947 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:30:29,952 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:30:29,952 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:30:29,952 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:30:29,956 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (1/1) ... [2025-02-08 05:30:29,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:30:29,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:30:29,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:30:30,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:30:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:30:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:30:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:30:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:30:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:30:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 05:30:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 05:30:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:30:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:30:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:30:30,025 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:30:30,158 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:30:30,160 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:30:30,397 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:30:30,397 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:30:30,425 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:30:30,426 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:30:30,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:30:30 BoogieIcfgContainer [2025-02-08 05:30:30,427 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:30:30,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:30:30,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:30:30,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:30:30,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:30:29" (1/3) ... [2025-02-08 05:30:30,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68783949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:30:30, skipping insertion in model container [2025-02-08 05:30:30,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:30:29" (2/3) ... [2025-02-08 05:30:30,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68783949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:30:30, skipping insertion in model container [2025-02-08 05:30:30,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:30:30" (3/3) ... [2025-02-08 05:30:30,436 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2025-02-08 05:30:30,450 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:30:30,452 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 95 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 05:30:30,454 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:30:30,545 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:30:30,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2025-02-08 05:30:30,648 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2025-02-08 05:30:30,651 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:30:30,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-08 05:30:30,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2025-02-08 05:30:30,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2025-02-08 05:30:30,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:30:30,675 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;@3131be23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:30:30,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 05:30:30,693 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:30:30,696 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2025-02-08 05:30:30,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:30:30,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:30,697 INFO L206 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] [2025-02-08 05:30:30,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:30,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1802961154, now seen corresponding path program 1 times [2025-02-08 05:30:30,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:30,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27000139] [2025-02-08 05:30:30,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:30,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 05:30:30,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 05:30:30,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:30,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:31,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:31,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27000139] [2025-02-08 05:30:31,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27000139] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:31,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:31,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:31,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137216524] [2025-02-08 05:30:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:31,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:31,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:31,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:31,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:31,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2025-02-08 05:30:31,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:31,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:31,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2025-02-08 05:30:31,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:32,037 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2025-02-08 05:30:32,038 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:30:32,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2433 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2025-02-08 05:30:32,046 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2025-02-08 05:30:32,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2025-02-08 05:30:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:32,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2025-02-08 05:30:32,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2025-02-08 05:30:32,067 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2025-02-08 05:30:32,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2025-02-08 05:30:32,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:30:32,077 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2025-02-08 05:30:32,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2025-02-08 05:30:32,082 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2025-02-08 05:30:32,084 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2025-02-08 05:30:32,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:32,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:32,085 INFO L206 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] [2025-02-08 05:30:32,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:30:32,086 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:32,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:32,087 INFO L85 PathProgramCache]: Analyzing trace with hash -161870157, now seen corresponding path program 1 times [2025-02-08 05:30:32,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:32,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356981003] [2025-02-08 05:30:32,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:32,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:32,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 05:30:32,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 05:30:32,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:32,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:32,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:32,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356981003] [2025-02-08 05:30:32,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356981003] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:32,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:32,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:32,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804558966] [2025-02-08 05:30:32,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:32,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:32,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:32,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:32,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:32,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2025-02-08 05:30:32,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:32,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:32,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2025-02-08 05:30:32,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:32,747 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2025-02-08 05:30:32,747 INFO L125 PetriNetUnfolderBase]: For 141/160 co-relation queries the response was YES. [2025-02-08 05:30:32,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 141/160 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3334 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2025-02-08 05:30:32,755 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2025-02-08 05:30:32,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2025-02-08 05:30:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:32,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2025-02-08 05:30:32,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2025-02-08 05:30:32,759 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2025-02-08 05:30:32,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2025-02-08 05:30:32,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:32,766 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2025-02-08 05:30:32,767 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2025-02-08 05:30:32,767 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2025-02-08 05:30:32,767 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2025-02-08 05:30:32,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:32,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:32,769 INFO L206 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] [2025-02-08 05:30:32,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:30:32,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:32,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:32,771 INFO L85 PathProgramCache]: Analyzing trace with hash -142926177, now seen corresponding path program 1 times [2025-02-08 05:30:32,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:32,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939002400] [2025-02-08 05:30:32,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:32,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:32,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 05:30:32,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 05:30:32,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:32,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:33,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:33,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:33,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939002400] [2025-02-08 05:30:33,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939002400] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:33,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:33,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:33,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130870248] [2025-02-08 05:30:33,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:33,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:33,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:33,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:33,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:33,239 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2025-02-08 05:30:33,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:33,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:33,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2025-02-08 05:30:33,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:33,542 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2025-02-08 05:30:33,542 INFO L125 PetriNetUnfolderBase]: For 581/601 co-relation queries the response was YES. [2025-02-08 05:30:33,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 581/601 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2025-02-08 05:30:33,550 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2025-02-08 05:30:33,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2025-02-08 05:30:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-02-08 05:30:33,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2025-02-08 05:30:33,553 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2025-02-08 05:30:33,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2025-02-08 05:30:33,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:33,563 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2025-02-08 05:30:33,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2025-02-08 05:30:33,564 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2025-02-08 05:30:33,565 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2025-02-08 05:30:33,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:33,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:33,565 INFO L206 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] [2025-02-08 05:30:33,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:30:33,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:33,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:33,566 INFO L85 PathProgramCache]: Analyzing trace with hash -688971446, now seen corresponding path program 1 times [2025-02-08 05:30:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:33,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130919476] [2025-02-08 05:30:33,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:33,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:33,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-08 05:30:33,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 05:30:33,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:33,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:33,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:33,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130919476] [2025-02-08 05:30:33,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130919476] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:33,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:33,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:30:33,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500548498] [2025-02-08 05:30:33,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:33,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:30:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:33,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:30:33,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:30:34,040 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2025-02-08 05:30:34,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:34,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:34,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2025-02-08 05:30:34,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:34,321 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2025-02-08 05:30:34,321 INFO L125 PetriNetUnfolderBase]: For 1644/1691 co-relation queries the response was YES. [2025-02-08 05:30:34,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1644/1691 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7688 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2025-02-08 05:30:34,330 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2025-02-08 05:30:34,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2025-02-08 05:30:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:30:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:30:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-02-08 05:30:34,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2025-02-08 05:30:34,332 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2025-02-08 05:30:34,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2025-02-08 05:30:34,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:34,348 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2025-02-08 05:30:34,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2025-02-08 05:30:34,350 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2025-02-08 05:30:34,350 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2025-02-08 05:30:34,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:34,350 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:34,350 INFO L206 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] [2025-02-08 05:30:34,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:30:34,350 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:34,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1956090710, now seen corresponding path program 1 times [2025-02-08 05:30:34,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:34,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916518288] [2025-02-08 05:30:34,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:34,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:34,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:34,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:34,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916518288] [2025-02-08 05:30:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916518288] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:34,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:34,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322857756] [2025-02-08 05:30:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:34,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:34,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:34,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:35,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:35,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:35,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:35,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:35,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:36,312 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2025-02-08 05:30:36,312 INFO L125 PetriNetUnfolderBase]: For 5010/5116 co-relation queries the response was YES. [2025-02-08 05:30:36,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 5010/5116 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16833 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2025-02-08 05:30:36,333 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2025-02-08 05:30:36,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2025-02-08 05:30:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:30:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:30:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2025-02-08 05:30:36,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2025-02-08 05:30:36,372 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2025-02-08 05:30:36,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2025-02-08 05:30:36,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2025-02-08 05:30:36,404 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2025-02-08 05:30:36,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2025-02-08 05:30:36,405 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2025-02-08 05:30:36,406 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2025-02-08 05:30:36,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:36,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:36,407 INFO L206 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] [2025-02-08 05:30:36,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:30:36,407 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:36,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash -110305874, now seen corresponding path program 2 times [2025-02-08 05:30:36,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:36,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762076163] [2025-02-08 05:30:36,408 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:30:36,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:36,422 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:36,429 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:36,429 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:30:36,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:36,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:36,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762076163] [2025-02-08 05:30:36,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762076163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:36,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:36,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:36,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829370817] [2025-02-08 05:30:36,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:36,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:36,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:36,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:36,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:37,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:37,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:37,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:37,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:37,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:38,589 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2025-02-08 05:30:38,589 INFO L125 PetriNetUnfolderBase]: For 11869/12113 co-relation queries the response was YES. [2025-02-08 05:30:38,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11869/12113 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28040 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2025-02-08 05:30:38,625 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2025-02-08 05:30:38,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2025-02-08 05:30:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 05:30:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 05:30:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2025-02-08 05:30:38,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2025-02-08 05:30:38,628 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2025-02-08 05:30:38,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2025-02-08 05:30:38,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2025-02-08 05:30:38,693 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2025-02-08 05:30:38,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2025-02-08 05:30:38,696 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2025-02-08 05:30:38,697 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2025-02-08 05:30:38,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:38,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:38,698 INFO L206 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] [2025-02-08 05:30:38,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:30:38,698 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:38,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2080270314, now seen corresponding path program 3 times [2025-02-08 05:30:38,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:38,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454435917] [2025-02-08 05:30:38,699 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:30:38,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:38,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:38,718 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:38,721 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:30:38,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:39,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:39,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454435917] [2025-02-08 05:30:39,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454435917] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:39,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:39,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:39,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974064935] [2025-02-08 05:30:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:39,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:39,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:39,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:39,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:39,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:39,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:39,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:39,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:40,733 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2025-02-08 05:30:40,733 INFO L125 PetriNetUnfolderBase]: For 17302/17683 co-relation queries the response was YES. [2025-02-08 05:30:40,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17302/17683 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28197 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2025-02-08 05:30:40,764 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2025-02-08 05:30:40,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2025-02-08 05:30:40,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 05:30:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 05:30:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2025-02-08 05:30:40,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2025-02-08 05:30:40,768 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2025-02-08 05:30:40,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2025-02-08 05:30:40,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2025-02-08 05:30:40,857 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2025-02-08 05:30:40,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2025-02-08 05:30:40,859 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2025-02-08 05:30:40,859 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2025-02-08 05:30:40,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:40,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:40,860 INFO L206 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] [2025-02-08 05:30:40,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:30:40,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:40,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:40,861 INFO L85 PathProgramCache]: Analyzing trace with hash -937018976, now seen corresponding path program 4 times [2025-02-08 05:30:40,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:40,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485742565] [2025-02-08 05:30:40,861 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:30:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:40,880 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-02-08 05:30:40,889 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-02-08 05:30:40,890 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 05:30:40,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:41,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:41,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485742565] [2025-02-08 05:30:41,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485742565] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:41,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:41,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:41,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621869188] [2025-02-08 05:30:41,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:41,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:41,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:41,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:41,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:41,818 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:41,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:41,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:41,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:41,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:43,020 INFO L124 PetriNetUnfolderBase]: 1570/4379 cut-off events. [2025-02-08 05:30:43,021 INFO L125 PetriNetUnfolderBase]: For 27143/27597 co-relation queries the response was YES. [2025-02-08 05:30:43,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19533 conditions, 4379 events. 1570/4379 cut-off events. For 27143/27597 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 37338 event pairs, 128 based on Foata normal form. 155/4502 useless extension candidates. Maximal degree in co-relation 19452. Up to 813 conditions per place. [2025-02-08 05:30:43,067 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2025-02-08 05:30:43,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2025-02-08 05:30:43,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 05:30:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 05:30:43,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2025-02-08 05:30:43,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2025-02-08 05:30:43,071 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2025-02-08 05:30:43,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2025-02-08 05:30:43,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-02-08 05:30:43,166 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2025-02-08 05:30:43,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2025-02-08 05:30:43,167 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2025-02-08 05:30:43,167 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2025-02-08 05:30:43,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:43,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:43,168 INFO L206 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] [2025-02-08 05:30:43,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:30:43,168 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:43,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1628388386, now seen corresponding path program 5 times [2025-02-08 05:30:43,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:43,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278957140] [2025-02-08 05:30:43,169 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:30:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:43,181 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:43,187 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:43,187 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:30:43,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:43,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:43,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278957140] [2025-02-08 05:30:43,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278957140] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:43,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:43,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:43,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993131985] [2025-02-08 05:30:43,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:43,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:43,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:43,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:43,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:44,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:44,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:44,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:44,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:44,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:45,140 INFO L124 PetriNetUnfolderBase]: 1612/4467 cut-off events. [2025-02-08 05:30:45,140 INFO L125 PetriNetUnfolderBase]: For 38384/38988 co-relation queries the response was YES. [2025-02-08 05:30:45,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21325 conditions, 4467 events. 1612/4467 cut-off events. For 38384/38988 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 38181 event pairs, 159 based on Foata normal form. 213/4643 useless extension candidates. Maximal degree in co-relation 21234. Up to 1372 conditions per place. [2025-02-08 05:30:45,173 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 345 selfloop transitions, 186 changer transitions 33/646 dead transitions. [2025-02-08 05:30:45,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 646 transitions, 9551 flow [2025-02-08 05:30:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:30:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:30:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2025-02-08 05:30:45,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2025-02-08 05:30:45,177 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 15 states and 1075 transitions. [2025-02-08 05:30:45,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 646 transitions, 9551 flow [2025-02-08 05:30:45,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 646 transitions, 9279 flow, removed 88 selfloop flow, removed 7 redundant places. [2025-02-08 05:30:45,343 INFO L231 Difference]: Finished difference. Result has 215 places, 469 transitions, 7256 flow [2025-02-08 05:30:45,344 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7256, PETRI_PLACES=215, PETRI_TRANSITIONS=469} [2025-02-08 05:30:45,344 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 123 predicate places. [2025-02-08 05:30:45,345 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 469 transitions, 7256 flow [2025-02-08 05:30:45,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:45,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:45,345 INFO L206 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] [2025-02-08 05:30:45,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:30:45,346 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:45,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1097942096, now seen corresponding path program 6 times [2025-02-08 05:30:45,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:45,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962824006] [2025-02-08 05:30:45,347 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 05:30:45,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:45,357 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:45,361 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:45,361 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 05:30:45,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:45,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:45,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962824006] [2025-02-08 05:30:45,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962824006] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:45,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949401269] [2025-02-08 05:30:45,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:45,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:45,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:45,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:46,306 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:46,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 469 transitions, 7256 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:46,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:46,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:46,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:47,740 INFO L124 PetriNetUnfolderBase]: 2138/5898 cut-off events. [2025-02-08 05:30:47,741 INFO L125 PetriNetUnfolderBase]: For 58346/59233 co-relation queries the response was YES. [2025-02-08 05:30:47,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29115 conditions, 5898 events. 2138/5898 cut-off events. For 58346/59233 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 53402 event pairs, 171 based on Foata normal form. 210/6060 useless extension candidates. Maximal degree in co-relation 29019. Up to 2264 conditions per place. [2025-02-08 05:30:47,798 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 441 selfloop transitions, 238 changer transitions 18/779 dead transitions. [2025-02-08 05:30:47,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 779 transitions, 12579 flow [2025-02-08 05:30:47,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 05:30:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 05:30:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2025-02-08 05:30:47,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2025-02-08 05:30:47,801 INFO L175 Difference]: Start difference. First operand has 215 places, 469 transitions, 7256 flow. Second operand 14 states and 1007 transitions. [2025-02-08 05:30:47,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 779 transitions, 12579 flow [2025-02-08 05:30:48,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 779 transitions, 12231 flow, removed 49 selfloop flow, removed 10 redundant places. [2025-02-08 05:30:48,127 INFO L231 Difference]: Finished difference. Result has 227 places, 575 transitions, 9904 flow [2025-02-08 05:30:48,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=7046, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9904, PETRI_PLACES=227, PETRI_TRANSITIONS=575} [2025-02-08 05:30:48,128 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 135 predicate places. [2025-02-08 05:30:48,128 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 575 transitions, 9904 flow [2025-02-08 05:30:48,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:48,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:48,129 INFO L206 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] [2025-02-08 05:30:48,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:30:48,129 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:48,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:48,129 INFO L85 PathProgramCache]: Analyzing trace with hash 325304900, now seen corresponding path program 1 times [2025-02-08 05:30:48,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:48,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69317565] [2025-02-08 05:30:48,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:30:48,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:48,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:48,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:48,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:48,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:48,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:48,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69317565] [2025-02-08 05:30:48,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69317565] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:48,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:48,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:48,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993900987] [2025-02-08 05:30:48,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:48,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:48,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:48,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:48,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:48,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:30:48,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 575 transitions, 9904 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:48,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:48,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:30:48,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:50,546 INFO L124 PetriNetUnfolderBase]: 2668/6953 cut-off events. [2025-02-08 05:30:50,546 INFO L125 PetriNetUnfolderBase]: For 77112/77620 co-relation queries the response was YES. [2025-02-08 05:30:50,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36380 conditions, 6953 events. 2668/6953 cut-off events. For 77112/77620 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 62222 event pairs, 455 based on Foata normal form. 82/6980 useless extension candidates. Maximal degree in co-relation 36276. Up to 2209 conditions per place. [2025-02-08 05:30:50,596 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 620 selfloop transitions, 171 changer transitions 68/933 dead transitions. [2025-02-08 05:30:50,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 933 transitions, 15265 flow [2025-02-08 05:30:50,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 05:30:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 05:30:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2025-02-08 05:30:50,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2025-02-08 05:30:50,599 INFO L175 Difference]: Start difference. First operand has 227 places, 575 transitions, 9904 flow. Second operand 14 states and 995 transitions. [2025-02-08 05:30:50,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 933 transitions, 15265 flow [2025-02-08 05:30:50,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 933 transitions, 14877 flow, removed 106 selfloop flow, removed 5 redundant places. [2025-02-08 05:30:50,858 INFO L231 Difference]: Finished difference. Result has 243 places, 646 transitions, 11221 flow [2025-02-08 05:30:50,859 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9595, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11221, PETRI_PLACES=243, PETRI_TRANSITIONS=646} [2025-02-08 05:30:50,859 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 151 predicate places. [2025-02-08 05:30:50,859 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 646 transitions, 11221 flow [2025-02-08 05:30:50,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:50,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:50,860 INFO L206 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] [2025-02-08 05:30:50,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 05:30:50,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:50,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash 453243974, now seen corresponding path program 7 times [2025-02-08 05:30:50,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:50,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523127072] [2025-02-08 05:30:50,861 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 05:30:50,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:50,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:50,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:50,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:30:50,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:51,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:51,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523127072] [2025-02-08 05:30:51,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523127072] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:51,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:51,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:51,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290506422] [2025-02-08 05:30:51,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:51,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:51,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:51,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:51,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:51,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:51,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 646 transitions, 11221 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:51,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:51,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:51,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:53,540 INFO L124 PetriNetUnfolderBase]: 2422/6766 cut-off events. [2025-02-08 05:30:53,541 INFO L125 PetriNetUnfolderBase]: For 80445/81442 co-relation queries the response was YES. [2025-02-08 05:30:53,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36074 conditions, 6766 events. 2422/6766 cut-off events. For 80445/81442 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 63466 event pairs, 237 based on Foata normal form. 229/6956 useless extension candidates. Maximal degree in co-relation 35963. Up to 1838 conditions per place. [2025-02-08 05:30:53,592 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 594 selfloop transitions, 248 changer transitions 19/949 dead transitions. [2025-02-08 05:30:53,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 949 transitions, 16379 flow [2025-02-08 05:30:53,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:30:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:30:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2025-02-08 05:30:53,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2025-02-08 05:30:53,596 INFO L175 Difference]: Start difference. First operand has 243 places, 646 transitions, 11221 flow. Second operand 15 states and 1074 transitions. [2025-02-08 05:30:53,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 949 transitions, 16379 flow [2025-02-08 05:30:53,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 949 transitions, 16250 flow, removed 57 selfloop flow, removed 3 redundant places. [2025-02-08 05:30:53,977 INFO L231 Difference]: Finished difference. Result has 264 places, 707 transitions, 13341 flow [2025-02-08 05:30:53,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11120, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13341, PETRI_PLACES=264, PETRI_TRANSITIONS=707} [2025-02-08 05:30:53,979 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 172 predicate places. [2025-02-08 05:30:53,979 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 707 transitions, 13341 flow [2025-02-08 05:30:53,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:53,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:53,979 INFO L206 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] [2025-02-08 05:30:53,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 05:30:53,979 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:53,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash -236755680, now seen corresponding path program 8 times [2025-02-08 05:30:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:53,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895402622] [2025-02-08 05:30:53,980 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:30:53,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:53,988 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:53,991 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:53,991 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:30:53,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:54,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:54,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:54,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895402622] [2025-02-08 05:30:54,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895402622] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:54,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:54,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:54,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422744218] [2025-02-08 05:30:54,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:54,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:54,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:54,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:54,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:54,726 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:30:54,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 707 transitions, 13341 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:54,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:54,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:30:54,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:56,503 INFO L124 PetriNetUnfolderBase]: 2466/6832 cut-off events. [2025-02-08 05:30:56,503 INFO L125 PetriNetUnfolderBase]: For 101234/102466 co-relation queries the response was YES. [2025-02-08 05:30:56,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38438 conditions, 6832 events. 2466/6832 cut-off events. For 101234/102466 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 64085 event pairs, 235 based on Foata normal form. 275/7070 useless extension candidates. Maximal degree in co-relation 38316. Up to 2017 conditions per place. [2025-02-08 05:30:56,569 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 630 selfloop transitions, 243 changer transitions 18/979 dead transitions. [2025-02-08 05:30:56,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 979 transitions, 18247 flow [2025-02-08 05:30:56,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:30:56,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:30:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2025-02-08 05:30:56,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2025-02-08 05:30:56,571 INFO L175 Difference]: Start difference. First operand has 264 places, 707 transitions, 13341 flow. Second operand 15 states and 1078 transitions. [2025-02-08 05:30:56,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 979 transitions, 18247 flow [2025-02-08 05:30:57,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 979 transitions, 17846 flow, removed 144 selfloop flow, removed 5 redundant places. [2025-02-08 05:30:57,044 INFO L231 Difference]: Finished difference. Result has 281 places, 733 transitions, 14204 flow [2025-02-08 05:30:57,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12971, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14204, PETRI_PLACES=281, PETRI_TRANSITIONS=733} [2025-02-08 05:30:57,045 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 189 predicate places. [2025-02-08 05:30:57,045 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 733 transitions, 14204 flow [2025-02-08 05:30:57,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:57,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:30:57,046 INFO L206 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] [2025-02-08 05:30:57,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 05:30:57,046 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:30:57,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:30:57,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1319844560, now seen corresponding path program 2 times [2025-02-08 05:30:57,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:30:57,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979802246] [2025-02-08 05:30:57,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:30:57,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:30:57,054 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:30:57,057 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:30:57,058 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:30:57,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:30:57,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:30:57,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:30:57,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979802246] [2025-02-08 05:30:57,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979802246] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:30:57,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:30:57,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:30:57,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134729970] [2025-02-08 05:30:57,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:30:57,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:30:57,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:30:57,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:30:57,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:30:57,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:30:57,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 733 transitions, 14204 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:30:57,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:30:57,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:30:57,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:30:59,961 INFO L124 PetriNetUnfolderBase]: 3148/8142 cut-off events. [2025-02-08 05:30:59,962 INFO L125 PetriNetUnfolderBase]: For 120237/120787 co-relation queries the response was YES. [2025-02-08 05:31:00,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47230 conditions, 8142 events. 3148/8142 cut-off events. For 120237/120787 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 75104 event pairs, 562 based on Foata normal form. 116/8189 useless extension candidates. Maximal degree in co-relation 47102. Up to 2904 conditions per place. [2025-02-08 05:31:00,064 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 697 selfloop transitions, 207 changer transitions 53/1035 dead transitions. [2025-02-08 05:31:00,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1035 transitions, 19164 flow [2025-02-08 05:31:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2025-02-08 05:31:00,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2025-02-08 05:31:00,067 INFO L175 Difference]: Start difference. First operand has 281 places, 733 transitions, 14204 flow. Second operand 15 states and 1052 transitions. [2025-02-08 05:31:00,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1035 transitions, 19164 flow [2025-02-08 05:31:00,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1035 transitions, 18493 flow, removed 108 selfloop flow, removed 11 redundant places. [2025-02-08 05:31:00,789 INFO L231 Difference]: Finished difference. Result has 290 places, 752 transitions, 14541 flow [2025-02-08 05:31:00,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=13582, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14541, PETRI_PLACES=290, PETRI_TRANSITIONS=752} [2025-02-08 05:31:00,790 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 198 predicate places. [2025-02-08 05:31:00,790 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 752 transitions, 14541 flow [2025-02-08 05:31:00,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:00,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:00,790 INFO L206 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] [2025-02-08 05:31:00,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 05:31:00,791 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:00,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:00,791 INFO L85 PathProgramCache]: Analyzing trace with hash 390231364, now seen corresponding path program 3 times [2025-02-08 05:31:00,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:00,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653207086] [2025-02-08 05:31:00,791 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:31:00,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:00,801 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:00,807 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:00,807 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:31:00,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653207086] [2025-02-08 05:31:01,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653207086] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:01,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:01,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:01,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970014006] [2025-02-08 05:31:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:01,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:01,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:01,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:01,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:01,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:31:01,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 752 transitions, 14541 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:01,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:01,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:31:01,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:03,777 INFO L124 PetriNetUnfolderBase]: 3206/8291 cut-off events. [2025-02-08 05:31:03,778 INFO L125 PetriNetUnfolderBase]: For 120828/121353 co-relation queries the response was YES. [2025-02-08 05:31:03,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49435 conditions, 8291 events. 3206/8291 cut-off events. For 120828/121353 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 76619 event pairs, 490 based on Foata normal form. 107/8335 useless extension candidates. Maximal degree in co-relation 49304. Up to 2903 conditions per place. [2025-02-08 05:31:03,864 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 956 selfloop transitions, 140 changer transitions 44/1218 dead transitions. [2025-02-08 05:31:03,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1218 transitions, 22181 flow [2025-02-08 05:31:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:03,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2025-02-08 05:31:03,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2025-02-08 05:31:03,865 INFO L175 Difference]: Start difference. First operand has 290 places, 752 transitions, 14541 flow. Second operand 15 states and 1059 transitions. [2025-02-08 05:31:03,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1218 transitions, 22181 flow [2025-02-08 05:31:04,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 1218 transitions, 21956 flow, removed 23 selfloop flow, removed 9 redundant places. [2025-02-08 05:31:04,582 INFO L231 Difference]: Finished difference. Result has 303 places, 811 transitions, 15909 flow [2025-02-08 05:31:04,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14360, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15909, PETRI_PLACES=303, PETRI_TRANSITIONS=811} [2025-02-08 05:31:04,583 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 211 predicate places. [2025-02-08 05:31:04,583 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 811 transitions, 15909 flow [2025-02-08 05:31:04,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:04,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:04,583 INFO L206 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] [2025-02-08 05:31:04,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 05:31:04,583 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:04,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 305920314, now seen corresponding path program 4 times [2025-02-08 05:31:04,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:04,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433580529] [2025-02-08 05:31:04,584 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:31:04,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:04,592 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-02-08 05:31:04,595 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-02-08 05:31:04,595 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 05:31:04,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433580529] [2025-02-08 05:31:04,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433580529] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:04,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:04,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:04,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098056896] [2025-02-08 05:31:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:04,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:04,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:04,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:04,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:05,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:31:05,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 811 transitions, 15909 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:05,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:05,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:31:05,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:07,410 INFO L124 PetriNetUnfolderBase]: 3258/8468 cut-off events. [2025-02-08 05:31:07,410 INFO L125 PetriNetUnfolderBase]: For 130126/130654 co-relation queries the response was YES. [2025-02-08 05:31:07,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52032 conditions, 8468 events. 3258/8468 cut-off events. For 130126/130654 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 78839 event pairs, 559 based on Foata normal form. 122/8523 useless extension candidates. Maximal degree in co-relation 51894. Up to 2906 conditions per place. [2025-02-08 05:31:07,518 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 780 selfloop transitions, 249 changer transitions 38/1145 dead transitions. [2025-02-08 05:31:07,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 1145 transitions, 21865 flow [2025-02-08 05:31:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2025-02-08 05:31:07,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2025-02-08 05:31:07,519 INFO L175 Difference]: Start difference. First operand has 303 places, 811 transitions, 15909 flow. Second operand 15 states and 1054 transitions. [2025-02-08 05:31:07,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 1145 transitions, 21865 flow [2025-02-08 05:31:08,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1145 transitions, 21610 flow, removed 58 selfloop flow, removed 9 redundant places. [2025-02-08 05:31:08,428 INFO L231 Difference]: Finished difference. Result has 315 places, 850 transitions, 17335 flow [2025-02-08 05:31:08,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15715, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=811, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17335, PETRI_PLACES=315, PETRI_TRANSITIONS=850} [2025-02-08 05:31:08,429 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 223 predicate places. [2025-02-08 05:31:08,429 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 850 transitions, 17335 flow [2025-02-08 05:31:08,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:08,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:08,429 INFO L206 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] [2025-02-08 05:31:08,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 05:31:08,429 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash -448671790, now seen corresponding path program 1 times [2025-02-08 05:31:08,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:08,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412079488] [2025-02-08 05:31:08,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:08,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:08,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:08,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:08,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:08,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:08,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412079488] [2025-02-08 05:31:08,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412079488] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:08,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:08,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:08,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929985694] [2025-02-08 05:31:08,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:08,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:08,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:08,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:08,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:09,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:09,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 850 transitions, 17335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:09,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:09,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:09,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:11,318 INFO L124 PetriNetUnfolderBase]: 2758/7661 cut-off events. [2025-02-08 05:31:11,318 INFO L125 PetriNetUnfolderBase]: For 134619/135555 co-relation queries the response was YES. [2025-02-08 05:31:11,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47014 conditions, 7661 events. 2758/7661 cut-off events. For 134619/135555 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 73357 event pairs, 243 based on Foata normal form. 184/7797 useless extension candidates. Maximal degree in co-relation 46871. Up to 1993 conditions per place. [2025-02-08 05:31:11,380 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 685 selfloop transitions, 197 changer transitions 25/1194 dead transitions. [2025-02-08 05:31:11,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1194 transitions, 23127 flow [2025-02-08 05:31:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2025-02-08 05:31:11,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2025-02-08 05:31:11,381 INFO L175 Difference]: Start difference. First operand has 315 places, 850 transitions, 17335 flow. Second operand 15 states and 1099 transitions. [2025-02-08 05:31:11,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 1194 transitions, 23127 flow [2025-02-08 05:31:12,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1194 transitions, 22752 flow, removed 64 selfloop flow, removed 10 redundant places. [2025-02-08 05:31:12,234 INFO L231 Difference]: Finished difference. Result has 328 places, 959 transitions, 19593 flow [2025-02-08 05:31:12,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=16982, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=850, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19593, PETRI_PLACES=328, PETRI_TRANSITIONS=959} [2025-02-08 05:31:12,236 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 236 predicate places. [2025-02-08 05:31:12,236 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 959 transitions, 19593 flow [2025-02-08 05:31:12,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:12,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:12,237 INFO L206 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] [2025-02-08 05:31:12,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 05:31:12,237 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:12,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -440509864, now seen corresponding path program 5 times [2025-02-08 05:31:12,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:12,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888793568] [2025-02-08 05:31:12,239 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:31:12,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:12,249 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:12,253 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:12,253 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:12,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:12,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:12,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888793568] [2025-02-08 05:31:12,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888793568] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:12,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:12,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:12,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978765827] [2025-02-08 05:31:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:12,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:12,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:12,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:12,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:13,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:31:13,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 959 transitions, 19593 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:13,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:13,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:31:13,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:15,815 INFO L124 PetriNetUnfolderBase]: 3401/8887 cut-off events. [2025-02-08 05:31:15,815 INFO L125 PetriNetUnfolderBase]: For 150357/150973 co-relation queries the response was YES. [2025-02-08 05:31:15,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56545 conditions, 8887 events. 3401/8887 cut-off events. For 150357/150973 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 83746 event pairs, 609 based on Foata normal form. 133/8947 useless extension candidates. Maximal degree in co-relation 56395. Up to 2911 conditions per place. [2025-02-08 05:31:15,913 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 882 selfloop transitions, 278 changer transitions 36/1274 dead transitions. [2025-02-08 05:31:15,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 1274 transitions, 25886 flow [2025-02-08 05:31:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:15,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2025-02-08 05:31:15,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2025-02-08 05:31:15,915 INFO L175 Difference]: Start difference. First operand has 328 places, 959 transitions, 19593 flow. Second operand 15 states and 1054 transitions. [2025-02-08 05:31:15,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 1274 transitions, 25886 flow [2025-02-08 05:31:17,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1274 transitions, 25782 flow, removed 45 selfloop flow, removed 3 redundant places. [2025-02-08 05:31:17,050 INFO L231 Difference]: Finished difference. Result has 346 places, 1001 transitions, 21186 flow [2025-02-08 05:31:17,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19491, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21186, PETRI_PLACES=346, PETRI_TRANSITIONS=1001} [2025-02-08 05:31:17,051 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 254 predicate places. [2025-02-08 05:31:17,051 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 1001 transitions, 21186 flow [2025-02-08 05:31:17,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:17,052 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:17,052 INFO L206 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] [2025-02-08 05:31:17,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 05:31:17,052 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:17,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2131872158, now seen corresponding path program 2 times [2025-02-08 05:31:17,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:17,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197163923] [2025-02-08 05:31:17,053 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:17,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:17,061 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:17,067 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:17,068 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:17,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:17,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:17,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197163923] [2025-02-08 05:31:17,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197163923] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:17,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:17,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:17,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222446526] [2025-02-08 05:31:17,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:17,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:17,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:17,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:17,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:17,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:17,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 1001 transitions, 21186 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:17,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:17,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:17,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:20,295 INFO L124 PetriNetUnfolderBase]: 2740/7677 cut-off events. [2025-02-08 05:31:20,295 INFO L125 PetriNetUnfolderBase]: For 154742/155691 co-relation queries the response was YES. [2025-02-08 05:31:20,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49823 conditions, 7677 events. 2740/7677 cut-off events. For 154742/155691 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73793 event pairs, 225 based on Foata normal form. 191/7825 useless extension candidates. Maximal degree in co-relation 49666. Up to 1998 conditions per place. [2025-02-08 05:31:20,407 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 783 selfloop transitions, 192 changer transitions 24/1292 dead transitions. [2025-02-08 05:31:20,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1292 transitions, 26244 flow [2025-02-08 05:31:20,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:20,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2025-02-08 05:31:20,409 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2025-02-08 05:31:20,409 INFO L175 Difference]: Start difference. First operand has 346 places, 1001 transitions, 21186 flow. Second operand 15 states and 1099 transitions. [2025-02-08 05:31:20,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1292 transitions, 26244 flow [2025-02-08 05:31:21,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1292 transitions, 25946 flow, removed 79 selfloop flow, removed 8 redundant places. [2025-02-08 05:31:21,472 INFO L231 Difference]: Finished difference. Result has 360 places, 1033 transitions, 21964 flow [2025-02-08 05:31:21,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20897, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=811, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21964, PETRI_PLACES=360, PETRI_TRANSITIONS=1033} [2025-02-08 05:31:21,474 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 268 predicate places. [2025-02-08 05:31:21,474 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 1033 transitions, 21964 flow [2025-02-08 05:31:21,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:21,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:21,474 INFO L206 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] [2025-02-08 05:31:21,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 05:31:21,475 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:21,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1275880538, now seen corresponding path program 1 times [2025-02-08 05:31:21,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:21,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842162825] [2025-02-08 05:31:21,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:21,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:21,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:21,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:21,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:21,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:21,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:21,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842162825] [2025-02-08 05:31:21,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842162825] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:21,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:21,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:21,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364450855] [2025-02-08 05:31:21,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:21,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:21,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:21,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:21,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:21,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:31:21,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 1033 transitions, 21964 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:21,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:21,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:31:21,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:24,816 INFO L124 PetriNetUnfolderBase]: 3346/8777 cut-off events. [2025-02-08 05:31:24,816 INFO L125 PetriNetUnfolderBase]: For 176686/177363 co-relation queries the response was YES. [2025-02-08 05:31:24,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59190 conditions, 8777 events. 3346/8777 cut-off events. For 176686/177363 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 82747 event pairs, 565 based on Foata normal form. 99/8817 useless extension candidates. Maximal degree in co-relation 59026. Up to 2975 conditions per place. [2025-02-08 05:31:24,930 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1100 selfloop transitions, 165 changer transitions 69/1416 dead transitions. [2025-02-08 05:31:24,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1416 transitions, 29492 flow [2025-02-08 05:31:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 05:31:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 05:31:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2025-02-08 05:31:24,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2025-02-08 05:31:24,932 INFO L175 Difference]: Start difference. First operand has 360 places, 1033 transitions, 21964 flow. Second operand 16 states and 1119 transitions. [2025-02-08 05:31:24,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1416 transitions, 29492 flow [2025-02-08 05:31:26,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1416 transitions, 29187 flow, removed 65 selfloop flow, removed 7 redundant places. [2025-02-08 05:31:26,214 INFO L231 Difference]: Finished difference. Result has 376 places, 1087 transitions, 22907 flow [2025-02-08 05:31:26,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21727, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22907, PETRI_PLACES=376, PETRI_TRANSITIONS=1087} [2025-02-08 05:31:26,215 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 284 predicate places. [2025-02-08 05:31:26,215 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 1087 transitions, 22907 flow [2025-02-08 05:31:26,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:26,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:26,216 INFO L206 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] [2025-02-08 05:31:26,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 05:31:26,216 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:26,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1677947088, now seen corresponding path program 3 times [2025-02-08 05:31:26,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:26,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689180708] [2025-02-08 05:31:26,217 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:31:26,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:26,223 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:26,225 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:26,225 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:31:26,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:26,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689180708] [2025-02-08 05:31:26,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689180708] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:26,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:26,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:26,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030690212] [2025-02-08 05:31:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:26,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:26,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:26,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:26,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:26,736 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:26,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 1087 transitions, 22907 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:26,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:26,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:26,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:28,922 INFO L124 PetriNetUnfolderBase]: 2676/7584 cut-off events. [2025-02-08 05:31:28,922 INFO L125 PetriNetUnfolderBase]: For 175305/176284 co-relation queries the response was YES. [2025-02-08 05:31:28,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51944 conditions, 7584 events. 2676/7584 cut-off events. For 175305/176284 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73077 event pairs, 260 based on Foata normal form. 225/7771 useless extension candidates. Maximal degree in co-relation 51773. Up to 1990 conditions per place. [2025-02-08 05:31:29,009 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 736 selfloop transitions, 227 changer transitions 28/1295 dead transitions. [2025-02-08 05:31:29,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 1295 transitions, 27742 flow [2025-02-08 05:31:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 05:31:29,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 05:31:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2025-02-08 05:31:29,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2025-02-08 05:31:29,010 INFO L175 Difference]: Start difference. First operand has 376 places, 1087 transitions, 22907 flow. Second operand 14 states and 1027 transitions. [2025-02-08 05:31:29,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 1295 transitions, 27742 flow [2025-02-08 05:31:30,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1295 transitions, 27550 flow, removed 72 selfloop flow, removed 5 redundant places. [2025-02-08 05:31:30,173 INFO L231 Difference]: Finished difference. Result has 391 places, 1107 transitions, 24203 flow [2025-02-08 05:31:30,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=22715, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1087, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24203, PETRI_PLACES=391, PETRI_TRANSITIONS=1107} [2025-02-08 05:31:30,175 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 299 predicate places. [2025-02-08 05:31:30,175 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 1107 transitions, 24203 flow [2025-02-08 05:31:30,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:30,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:30,176 INFO L206 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] [2025-02-08 05:31:30,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 05:31:30,176 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:30,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:30,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1327033456, now seen corresponding path program 4 times [2025-02-08 05:31:30,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:30,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248460432] [2025-02-08 05:31:30,177 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:31:30,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:30,185 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-02-08 05:31:30,190 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-02-08 05:31:30,190 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 05:31:30,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:30,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:30,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248460432] [2025-02-08 05:31:30,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248460432] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:30,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:30,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:30,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001179330] [2025-02-08 05:31:30,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:30,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:30,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:30,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:30,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:30,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:30,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 1107 transitions, 24203 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:30,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:30,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:30,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:33,138 INFO L124 PetriNetUnfolderBase]: 2712/7711 cut-off events. [2025-02-08 05:31:33,138 INFO L125 PetriNetUnfolderBase]: For 185947/186925 co-relation queries the response was YES. [2025-02-08 05:31:33,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54118 conditions, 7711 events. 2712/7711 cut-off events. For 185947/186925 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 74770 event pairs, 259 based on Foata normal form. 231/7907 useless extension candidates. Maximal degree in co-relation 53942. Up to 1991 conditions per place. [2025-02-08 05:31:33,244 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 775 selfloop transitions, 254 changer transitions 21/1354 dead transitions. [2025-02-08 05:31:33,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 1354 transitions, 29949 flow [2025-02-08 05:31:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2025-02-08 05:31:33,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2025-02-08 05:31:33,246 INFO L175 Difference]: Start difference. First operand has 391 places, 1107 transitions, 24203 flow. Second operand 15 states and 1097 transitions. [2025-02-08 05:31:33,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 1354 transitions, 29949 flow [2025-02-08 05:31:34,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1354 transitions, 29695 flow, removed 7 selfloop flow, removed 9 redundant places. [2025-02-08 05:31:34,752 INFO L231 Difference]: Finished difference. Result has 402 places, 1146 transitions, 25918 flow [2025-02-08 05:31:34,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23965, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25918, PETRI_PLACES=402, PETRI_TRANSITIONS=1146} [2025-02-08 05:31:34,753 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 310 predicate places. [2025-02-08 05:31:34,754 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1146 transitions, 25918 flow [2025-02-08 05:31:34,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:34,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:34,754 INFO L206 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] [2025-02-08 05:31:34,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 05:31:34,754 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:34,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash 886346864, now seen corresponding path program 5 times [2025-02-08 05:31:34,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:34,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869475773] [2025-02-08 05:31:34,756 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:31:34,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:34,763 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:34,765 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:34,765 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:34,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:35,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:35,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:35,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869475773] [2025-02-08 05:31:35,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869475773] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:35,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:35,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:35,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860458361] [2025-02-08 05:31:35,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:35,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:35,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:35,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:35,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:35,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1146 transitions, 25918 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:35,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:35,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:35,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:38,208 INFO L124 PetriNetUnfolderBase]: 2723/7757 cut-off events. [2025-02-08 05:31:38,209 INFO L125 PetriNetUnfolderBase]: For 200769/201855 co-relation queries the response was YES. [2025-02-08 05:31:38,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55557 conditions, 7757 events. 2723/7757 cut-off events. For 200769/201855 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 75381 event pairs, 256 based on Foata normal form. 306/8025 useless extension candidates. Maximal degree in co-relation 55376. Up to 1993 conditions per place. [2025-02-08 05:31:38,283 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 765 selfloop transitions, 268 changer transitions 26/1363 dead transitions. [2025-02-08 05:31:38,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1363 transitions, 31205 flow [2025-02-08 05:31:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2025-02-08 05:31:38,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2025-02-08 05:31:38,285 INFO L175 Difference]: Start difference. First operand has 402 places, 1146 transitions, 25918 flow. Second operand 15 states and 1094 transitions. [2025-02-08 05:31:38,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1363 transitions, 31205 flow [2025-02-08 05:31:39,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1363 transitions, 30903 flow, removed 36 selfloop flow, removed 9 redundant places. [2025-02-08 05:31:39,460 INFO L231 Difference]: Finished difference. Result has 412 places, 1173 transitions, 27401 flow [2025-02-08 05:31:39,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=25629, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=889, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27401, PETRI_PLACES=412, PETRI_TRANSITIONS=1173} [2025-02-08 05:31:39,461 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 320 predicate places. [2025-02-08 05:31:39,461 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 1173 transitions, 27401 flow [2025-02-08 05:31:39,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:39,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:39,461 INFO L206 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] [2025-02-08 05:31:39,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-08 05:31:39,461 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:39,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash -568975740, now seen corresponding path program 9 times [2025-02-08 05:31:39,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:39,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062772148] [2025-02-08 05:31:39,462 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:31:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:39,468 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:39,471 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:39,471 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:31:39,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:39,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:39,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062772148] [2025-02-08 05:31:39,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062772148] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:39,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:39,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683776932] [2025-02-08 05:31:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:39,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:39,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:39,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:40,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:40,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 1173 transitions, 27401 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:40,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:40,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:40,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:42,521 INFO L124 PetriNetUnfolderBase]: 2749/7816 cut-off events. [2025-02-08 05:31:42,521 INFO L125 PetriNetUnfolderBase]: For 227778/229297 co-relation queries the response was YES. [2025-02-08 05:31:42,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57776 conditions, 7816 events. 2749/7816 cut-off events. For 227778/229297 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 76193 event pairs, 268 based on Foata normal form. 349/8134 useless extension candidates. Maximal degree in co-relation 57591. Up to 2023 conditions per place. [2025-02-08 05:31:42,623 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 746 selfloop transitions, 411 changer transitions 22/1379 dead transitions. [2025-02-08 05:31:42,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1379 transitions, 33824 flow [2025-02-08 05:31:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2025-02-08 05:31:42,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2025-02-08 05:31:42,625 INFO L175 Difference]: Start difference. First operand has 412 places, 1173 transitions, 27401 flow. Second operand 15 states and 1075 transitions. [2025-02-08 05:31:42,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1379 transitions, 33824 flow [2025-02-08 05:31:43,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1379 transitions, 33526 flow, removed 29 selfloop flow, removed 9 redundant places. [2025-02-08 05:31:43,962 INFO L231 Difference]: Finished difference. Result has 424 places, 1222 transitions, 30118 flow [2025-02-08 05:31:43,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=27121, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=363, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=30118, PETRI_PLACES=424, PETRI_TRANSITIONS=1222} [2025-02-08 05:31:43,963 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 332 predicate places. [2025-02-08 05:31:43,963 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 1222 transitions, 30118 flow [2025-02-08 05:31:43,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:43,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:43,964 INFO L206 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] [2025-02-08 05:31:43,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-08 05:31:43,964 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:43,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1478274604, now seen corresponding path program 6 times [2025-02-08 05:31:43,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:43,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864445819] [2025-02-08 05:31:43,965 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 05:31:43,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:43,970 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:43,973 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:43,973 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 05:31:43,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:44,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:44,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864445819] [2025-02-08 05:31:44,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864445819] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:44,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:44,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:44,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796343486] [2025-02-08 05:31:44,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:44,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:44,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:44,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:44,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:44,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-02-08 05:31:44,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1222 transitions, 30118 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:44,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:44,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-02-08 05:31:44,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:47,020 INFO L124 PetriNetUnfolderBase]: 2759/7894 cut-off events. [2025-02-08 05:31:47,020 INFO L125 PetriNetUnfolderBase]: For 234018/235209 co-relation queries the response was YES. [2025-02-08 05:31:47,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58730 conditions, 7894 events. 2759/7894 cut-off events. For 234018/235209 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 77174 event pairs, 249 based on Foata normal form. 287/8148 useless extension candidates. Maximal degree in co-relation 58539. Up to 1993 conditions per place. [2025-02-08 05:31:47,129 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 842 selfloop transitions, 259 changer transitions 32/1455 dead transitions. [2025-02-08 05:31:47,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1455 transitions, 35415 flow [2025-02-08 05:31:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 05:31:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 05:31:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2025-02-08 05:31:47,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2025-02-08 05:31:47,130 INFO L175 Difference]: Start difference. First operand has 424 places, 1222 transitions, 30118 flow. Second operand 15 states and 1076 transitions. [2025-02-08 05:31:47,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1455 transitions, 35415 flow [2025-02-08 05:31:48,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 1455 transitions, 34874 flow, removed 106 selfloop flow, removed 9 redundant places. [2025-02-08 05:31:48,783 INFO L231 Difference]: Finished difference. Result has 438 places, 1247 transitions, 30968 flow [2025-02-08 05:31:48,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29603, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=30968, PETRI_PLACES=438, PETRI_TRANSITIONS=1247} [2025-02-08 05:31:48,784 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 346 predicate places. [2025-02-08 05:31:48,784 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1247 transitions, 30968 flow [2025-02-08 05:31:48,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:48,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:48,785 INFO L206 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] [2025-02-08 05:31:48,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 05:31:48,785 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:48,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash -71436516, now seen corresponding path program 2 times [2025-02-08 05:31:48,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:48,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006088574] [2025-02-08 05:31:48,786 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:48,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:48,792 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-02-08 05:31:48,795 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-08 05:31:48,795 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:48,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:48,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:48,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006088574] [2025-02-08 05:31:48,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006088574] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:48,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:48,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 05:31:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012808038] [2025-02-08 05:31:48,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:48,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 05:31:48,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:48,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 05:31:48,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:31:49,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-02-08 05:31:49,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1247 transitions, 30968 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:31:49,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:49,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-02-08 05:31:49,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand