./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc 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/pthread/queue.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 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:56:20,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:56:20,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 08:56:20,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:56:20,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:56:20,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:56:20,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:56:20,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:56:20,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:56:20,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:56:20,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:56:20,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:56:20,483 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:56:20,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:56:20,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:56:20,483 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:56:20,484 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:56:20,485 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:56:20,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:56:20,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:56:20,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:56:20,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:56:20,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:56:20,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:56:20,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:56:20,486 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 -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2025-02-06 08:56:20,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:56:20,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:56:20,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:56:20,706 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:56:20,706 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:56:20,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue.i [2025-02-06 08:56:21,849 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9dbc63616/0a2720a4626e4cb38d5bbab4ba4a8ec3/FLAGd63f3de65 [2025-02-06 08:56:22,173 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:56:22,175 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/queue.i [2025-02-06 08:56:22,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9dbc63616/0a2720a4626e4cb38d5bbab4ba4a8ec3/FLAGd63f3de65 [2025-02-06 08:56:22,438 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9dbc63616/0a2720a4626e4cb38d5bbab4ba4a8ec3 [2025-02-06 08:56:22,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:56:22,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:56:22,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:56:22,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:56:22,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:56:22,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372d6db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22, skipping insertion in model container [2025-02-06 08:56:22,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:56:22,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:56:22,817 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:56:22,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:56:22,896 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:56:22,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22 WrapperNode [2025-02-06 08:56:22,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:56:22,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:56:22,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:56:22,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:56:22,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,961 INFO L138 Inliner]: procedures = 274, calls = 107, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 518 [2025-02-06 08:56:22,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:56:22,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:56:22,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:56:22,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:56:22,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:22,998 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:23,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:23,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:23,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:23,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:56:23,017 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:56:23,017 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:56:23,017 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:56:23,018 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (1/1) ... [2025-02-06 08:56:23,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:56:23,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:56:23,053 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) [2025-02-06 08:56:23,056 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 [2025-02-06 08:56:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-06 08:56:23,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-06 08:56:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-06 08:56:23,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-06 08:56:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 08:56:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 08:56:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 08:56:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 08:56:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:56:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 08:56:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:56:23,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:56:23,075 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 08:56:23,203 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:56:23,204 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:56:24,048 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 08:56:24,049 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:56:24,111 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:56:24,112 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 08:56:24,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:56:24 BoogieIcfgContainer [2025-02-06 08:56:24,112 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:56:24,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:56:24,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:56:24,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:56:24,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:56:22" (1/3) ... [2025-02-06 08:56:24,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5cfe06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:56:24, skipping insertion in model container [2025-02-06 08:56:24,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:56:22" (2/3) ... [2025-02-06 08:56:24,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5cfe06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:56:24, skipping insertion in model container [2025-02-06 08:56:24,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:56:24" (3/3) ... [2025-02-06 08:56:24,132 INFO L128 eAbstractionObserver]: Analyzing ICFG queue.i [2025-02-06 08:56:24,162 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:56:24,163 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG queue.i that has 3 procedures, 577 locations, 1 initial locations, 2 loop locations, and 42 error locations. [2025-02-06 08:56:24,163 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 08:56:24,503 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 08:56:24,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 592 transitions, 1198 flow [2025-02-06 08:56:24,957 INFO L124 PetriNetUnfolderBase]: 16/590 cut-off events. [2025-02-06 08:56:24,959 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:56:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 590 events. 16/590 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 780 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 451. Up to 2 conditions per place. [2025-02-06 08:56:24,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 592 transitions, 1198 flow [2025-02-06 08:56:24,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 570 places, 577 transitions, 1163 flow [2025-02-06 08:56:25,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:56:25,031 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;@f5fb9fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:56:25,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2025-02-06 08:56:25,070 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:56:25,070 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2025-02-06 08:56:25,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:56:25,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:25,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:25,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:25,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 660549691, now seen corresponding path program 1 times [2025-02-06 08:56:25,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:25,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110566727] [2025-02-06 08:56:25,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:25,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:25,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 08:56:25,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 08:56:25,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:25,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:56:25,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:25,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110566727] [2025-02-06 08:56:25,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110566727] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:25,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:25,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:56:25,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152027632] [2025-02-06 08:56:25,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:25,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:56:25,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:25,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:56:25,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:56:25,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 592 [2025-02-06 08:56:25,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 577 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:25,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:25,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 592 [2025-02-06 08:56:25,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:25,714 INFO L124 PetriNetUnfolderBase]: 61/1686 cut-off events. [2025-02-06 08:56:25,715 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-06 08:56:25,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 1686 events. 61/1686 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7648 event pairs, 27 based on Foata normal form. 24/1533 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2025-02-06 08:56:25,725 INFO L140 encePairwiseOnDemand]: 585/592 looper letters, 15 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2025-02-06 08:56:25,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 568 transitions, 1179 flow [2025-02-06 08:56:25,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:56:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:56:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1708 transitions. [2025-02-06 08:56:25,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9617117117117117 [2025-02-06 08:56:25,743 INFO L175 Difference]: Start difference. First operand has 570 places, 577 transitions, 1163 flow. Second operand 3 states and 1708 transitions. [2025-02-06 08:56:25,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 568 transitions, 1179 flow [2025-02-06 08:56:25,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 568 transitions, 1174 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 08:56:25,761 INFO L231 Difference]: Finished difference. Result has 564 places, 568 transitions, 1144 flow [2025-02-06 08:56:25,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=568} [2025-02-06 08:56:25,766 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2025-02-06 08:56:25,766 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 568 transitions, 1144 flow [2025-02-06 08:56:25,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:25,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:25,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:25,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:56:25,768 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:25,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:25,769 INFO L85 PathProgramCache]: Analyzing trace with hash 549712237, now seen corresponding path program 1 times [2025-02-06 08:56:25,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:25,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200588751] [2025-02-06 08:56:25,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:25,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:25,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 08:56:25,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 08:56:25,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:25,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:56:25,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:25,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200588751] [2025-02-06 08:56:25,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200588751] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:25,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:25,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:56:25,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404971122] [2025-02-06 08:56:25,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:25,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:56:25,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:25,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:56:25,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:56:25,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 592 [2025-02-06 08:56:25,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 568 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:25,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:25,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 592 [2025-02-06 08:56:25,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:26,362 INFO L124 PetriNetUnfolderBase]: 69/1960 cut-off events. [2025-02-06 08:56:26,362 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 08:56:26,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1960 events. 69/1960 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 9634 event pairs, 29 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2025-02-06 08:56:26,380 INFO L140 encePairwiseOnDemand]: 589/592 looper letters, 15 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2025-02-06 08:56:26,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 567 transitions, 1176 flow [2025-02-06 08:56:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:56:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:56:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2025-02-06 08:56:26,386 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9594594594594594 [2025-02-06 08:56:26,386 INFO L175 Difference]: Start difference. First operand has 564 places, 568 transitions, 1144 flow. Second operand 3 states and 1704 transitions. [2025-02-06 08:56:26,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 567 transitions, 1176 flow [2025-02-06 08:56:26,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 567 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:56:26,397 INFO L231 Difference]: Finished difference. Result has 563 places, 567 transitions, 1142 flow [2025-02-06 08:56:26,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=567} [2025-02-06 08:56:26,399 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2025-02-06 08:56:26,399 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 567 transitions, 1142 flow [2025-02-06 08:56:26,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:26,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:26,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:26,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:56:26,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:26,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:26,402 INFO L85 PathProgramCache]: Analyzing trace with hash 58637508, now seen corresponding path program 1 times [2025-02-06 08:56:26,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:26,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183614654] [2025-02-06 08:56:26,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:26,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:26,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 08:56:26,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 08:56:26,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:26,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:56:27,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:27,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183614654] [2025-02-06 08:56:27,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183614654] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:27,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:27,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:27,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049986396] [2025-02-06 08:56:27,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:27,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:27,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:27,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:27,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:28,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 592 [2025-02-06 08:56:28,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 567 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:28,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:28,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 592 [2025-02-06 08:56:28,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:30,576 INFO L124 PetriNetUnfolderBase]: 3671/15096 cut-off events. [2025-02-06 08:56:30,576 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 08:56:30,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22144 conditions, 15096 events. 3671/15096 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136636 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22055. Up to 6868 conditions per place. [2025-02-06 08:56:30,662 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 138 selfloop transitions, 5 changer transitions 0/566 dead transitions. [2025-02-06 08:56:30,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 566 transitions, 1426 flow [2025-02-06 08:56:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:30,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2025-02-06 08:56:30,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787162162162162 [2025-02-06 08:56:30,667 INFO L175 Difference]: Start difference. First operand has 563 places, 567 transitions, 1142 flow. Second operand 6 states and 2766 transitions. [2025-02-06 08:56:30,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 566 transitions, 1426 flow [2025-02-06 08:56:30,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 566 transitions, 1422 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:56:30,674 INFO L231 Difference]: Finished difference. Result has 565 places, 566 transitions, 1146 flow [2025-02-06 08:56:30,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=565, PETRI_TRANSITIONS=566} [2025-02-06 08:56:30,676 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -5 predicate places. [2025-02-06 08:56:30,676 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 566 transitions, 1146 flow [2025-02-06 08:56:30,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:30,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:30,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:30,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:56:30,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:30,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:30,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1420314719, now seen corresponding path program 1 times [2025-02-06 08:56:30,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:30,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83940047] [2025-02-06 08:56:30,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:30,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:30,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 08:56:30,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 08:56:30,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:30,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:56:30,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:30,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83940047] [2025-02-06 08:56:30,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83940047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:30,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:30,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271655673] [2025-02-06 08:56:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:30,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:30,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:30,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:31,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 592 [2025-02-06 08:56:31,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 566 transitions, 1146 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:31,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:31,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 592 [2025-02-06 08:56:31,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:33,954 INFO L124 PetriNetUnfolderBase]: 3671/15095 cut-off events. [2025-02-06 08:56:33,954 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 08:56:34,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22146 conditions, 15095 events. 3671/15095 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136781 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22041. Up to 6868 conditions per place. [2025-02-06 08:56:34,113 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 138 selfloop transitions, 5 changer transitions 0/565 dead transitions. [2025-02-06 08:56:34,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 565 transitions, 1430 flow [2025-02-06 08:56:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2025-02-06 08:56:34,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787162162162162 [2025-02-06 08:56:34,119 INFO L175 Difference]: Start difference. First operand has 565 places, 566 transitions, 1146 flow. Second operand 6 states and 2766 transitions. [2025-02-06 08:56:34,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 565 transitions, 1430 flow [2025-02-06 08:56:34,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 565 transitions, 1420 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:56:34,126 INFO L231 Difference]: Finished difference. Result has 564 places, 565 transitions, 1144 flow [2025-02-06 08:56:34,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=565} [2025-02-06 08:56:34,127 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2025-02-06 08:56:34,127 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 565 transitions, 1144 flow [2025-02-06 08:56:34,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:34,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:34,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:34,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:56:34,129 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:34,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1125698543, now seen corresponding path program 1 times [2025-02-06 08:56:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411373688] [2025-02-06 08:56:34,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:34,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:34,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-06 08:56:34,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-06 08:56:34,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:34,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:56:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:34,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411373688] [2025-02-06 08:56:34,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411373688] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:34,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:34,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:34,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105687934] [2025-02-06 08:56:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:34,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:34,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:34,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:35,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 592 [2025-02-06 08:56:35,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 565 transitions, 1144 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:35,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:35,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 592 [2025-02-06 08:56:35,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:37,191 INFO L124 PetriNetUnfolderBase]: 3671/15094 cut-off events. [2025-02-06 08:56:37,191 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 08:56:37,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22145 conditions, 15094 events. 3671/15094 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136978 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22032. Up to 6868 conditions per place. [2025-02-06 08:56:37,269 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 138 selfloop transitions, 5 changer transitions 0/564 dead transitions. [2025-02-06 08:56:37,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 564 transitions, 1428 flow [2025-02-06 08:56:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:37,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2025-02-06 08:56:37,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787162162162162 [2025-02-06 08:56:37,275 INFO L175 Difference]: Start difference. First operand has 564 places, 565 transitions, 1144 flow. Second operand 6 states and 2766 transitions. [2025-02-06 08:56:37,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 564 transitions, 1428 flow [2025-02-06 08:56:37,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 564 transitions, 1418 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:56:37,282 INFO L231 Difference]: Finished difference. Result has 563 places, 564 transitions, 1142 flow [2025-02-06 08:56:37,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=564} [2025-02-06 08:56:37,287 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2025-02-06 08:56:37,287 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 564 transitions, 1142 flow [2025-02-06 08:56:37,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:37,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:37,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:37,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 08:56:37,290 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:37,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1179369503, now seen corresponding path program 1 times [2025-02-06 08:56:37,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:37,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623737624] [2025-02-06 08:56:37,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:37,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:37,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-06 08:56:37,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 08:56:37,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:37,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 08:56:37,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:37,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623737624] [2025-02-06 08:56:37,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623737624] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:37,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:37,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:37,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041280883] [2025-02-06 08:56:37,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:37,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:37,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:37,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:37,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:38,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-02-06 08:56:38,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 564 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:38,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:38,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-02-06 08:56:38,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:39,327 INFO L124 PetriNetUnfolderBase]: 831/5612 cut-off events. [2025-02-06 08:56:39,328 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 08:56:39,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7190 conditions, 5612 events. 831/5612 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45618 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7059. Up to 1475 conditions per place. [2025-02-06 08:56:39,376 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 76 selfloop transitions, 5 changer transitions 0/563 dead transitions. [2025-02-06 08:56:39,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 563 transitions, 1302 flow [2025-02-06 08:56:39,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2025-02-06 08:56:39,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.865990990990991 [2025-02-06 08:56:39,386 INFO L175 Difference]: Start difference. First operand has 563 places, 564 transitions, 1142 flow. Second operand 6 states and 3076 transitions. [2025-02-06 08:56:39,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 563 transitions, 1302 flow [2025-02-06 08:56:39,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 563 transitions, 1292 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:56:39,401 INFO L231 Difference]: Finished difference. Result has 562 places, 563 transitions, 1140 flow [2025-02-06 08:56:39,402 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1140, PETRI_PLACES=562, PETRI_TRANSITIONS=563} [2025-02-06 08:56:39,404 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -8 predicate places. [2025-02-06 08:56:39,408 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 563 transitions, 1140 flow [2025-02-06 08:56:39,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:39,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:39,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:39,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 08:56:39,410 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:39,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1298725753, now seen corresponding path program 1 times [2025-02-06 08:56:39,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:39,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405978167] [2025-02-06 08:56:39,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:39,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 08:56:39,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 08:56:39,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:39,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:40,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 08:56:40,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:40,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405978167] [2025-02-06 08:56:40,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405978167] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:40,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:40,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487181813] [2025-02-06 08:56:40,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:40,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:40,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:40,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:40,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:40,995 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-02-06 08:56:40,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 563 transitions, 1140 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:40,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:40,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-02-06 08:56:40,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:41,636 INFO L124 PetriNetUnfolderBase]: 831/5611 cut-off events. [2025-02-06 08:56:41,636 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 08:56:41,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7189 conditions, 5611 events. 831/5611 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45465 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7020. Up to 1475 conditions per place. [2025-02-06 08:56:41,654 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 76 selfloop transitions, 5 changer transitions 0/562 dead transitions. [2025-02-06 08:56:41,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 562 transitions, 1300 flow [2025-02-06 08:56:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2025-02-06 08:56:41,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.865990990990991 [2025-02-06 08:56:41,660 INFO L175 Difference]: Start difference. First operand has 562 places, 563 transitions, 1140 flow. Second operand 6 states and 3076 transitions. [2025-02-06 08:56:41,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 562 transitions, 1300 flow [2025-02-06 08:56:41,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 562 transitions, 1290 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:56:41,666 INFO L231 Difference]: Finished difference. Result has 561 places, 562 transitions, 1138 flow [2025-02-06 08:56:41,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1138, PETRI_PLACES=561, PETRI_TRANSITIONS=562} [2025-02-06 08:56:41,669 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -9 predicate places. [2025-02-06 08:56:41,669 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 562 transitions, 1138 flow [2025-02-06 08:56:41,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:41,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:41,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:41,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 08:56:41,671 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:41,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:41,672 INFO L85 PathProgramCache]: Analyzing trace with hash -208833624, now seen corresponding path program 1 times [2025-02-06 08:56:41,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:41,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191961189] [2025-02-06 08:56:41,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:41,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:41,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-06 08:56:41,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-06 08:56:41,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:41,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 08:56:41,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191961189] [2025-02-06 08:56:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191961189] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:41,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:56:41,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624439539] [2025-02-06 08:56:41,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:41,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:56:41,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:41,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:56:41,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:56:41,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 592 [2025-02-06 08:56:41,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 562 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:41,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:41,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 592 [2025-02-06 08:56:41,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:42,023 INFO L124 PetriNetUnfolderBase]: 114/2678 cut-off events. [2025-02-06 08:56:42,024 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-06 08:56:42,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2845 conditions, 2678 events. 114/2678 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13939 event pairs, 25 based on Foata normal form. 0/2382 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2025-02-06 08:56:42,042 INFO L140 encePairwiseOnDemand]: 587/592 looper letters, 22 selfloop transitions, 4 changer transitions 0/573 dead transitions. [2025-02-06 08:56:42,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 573 transitions, 1213 flow [2025-02-06 08:56:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:56:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:56:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1725 transitions. [2025-02-06 08:56:42,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9712837837837838 [2025-02-06 08:56:42,045 INFO L175 Difference]: Start difference. First operand has 561 places, 562 transitions, 1138 flow. Second operand 3 states and 1725 transitions. [2025-02-06 08:56:42,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 573 transitions, 1213 flow [2025-02-06 08:56:42,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 573 transitions, 1203 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:56:42,054 INFO L231 Difference]: Finished difference. Result has 560 places, 566 transitions, 1162 flow [2025-02-06 08:56:42,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1162, PETRI_PLACES=560, PETRI_TRANSITIONS=566} [2025-02-06 08:56:42,055 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -10 predicate places. [2025-02-06 08:56:42,056 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 566 transitions, 1162 flow [2025-02-06 08:56:42,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:42,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:42,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:42,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 08:56:42,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:42,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1308442786, now seen corresponding path program 1 times [2025-02-06 08:56:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657930875] [2025-02-06 08:56:42,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:42,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-06 08:56:42,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-06 08:56:42,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:42,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 08:56:42,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657930875] [2025-02-06 08:56:42,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657930875] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:42,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:42,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843894777] [2025-02-06 08:56:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:42,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:42,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:42,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:43,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 592 [2025-02-06 08:56:43,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 566 transitions, 1162 flow. Second operand has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:43,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:43,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 592 [2025-02-06 08:56:43,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:45,678 INFO L124 PetriNetUnfolderBase]: 3091/15503 cut-off events. [2025-02-06 08:56:45,679 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2025-02-06 08:56:45,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21715 conditions, 15503 events. 3091/15503 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 143894 event pairs, 1173 based on Foata normal form. 0/13921 useless extension candidates. Maximal degree in co-relation 20891. Up to 4480 conditions per place. [2025-02-06 08:56:45,775 INFO L140 encePairwiseOnDemand]: 538/592 looper letters, 125 selfloop transitions, 84 changer transitions 0/664 dead transitions. [2025-02-06 08:56:45,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 664 transitions, 1784 flow [2025-02-06 08:56:45,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3035 transitions. [2025-02-06 08:56:45,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8544481981981982 [2025-02-06 08:56:45,781 INFO L175 Difference]: Start difference. First operand has 560 places, 566 transitions, 1162 flow. Second operand 6 states and 3035 transitions. [2025-02-06 08:56:45,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 664 transitions, 1784 flow [2025-02-06 08:56:45,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 664 transitions, 1776 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:56:45,789 INFO L231 Difference]: Finished difference. Result has 568 places, 646 transitions, 1750 flow [2025-02-06 08:56:45,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1750, PETRI_PLACES=568, PETRI_TRANSITIONS=646} [2025-02-06 08:56:45,790 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -2 predicate places. [2025-02-06 08:56:45,790 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 646 transitions, 1750 flow [2025-02-06 08:56:45,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:45,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:45,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:45,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 08:56:45,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:45,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:45,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2131945807, now seen corresponding path program 1 times [2025-02-06 08:56:45,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:45,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406089600] [2025-02-06 08:56:45,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:45,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:45,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-02-06 08:56:45,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-02-06 08:56:45,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:45,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:45,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:56:45,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:45,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406089600] [2025-02-06 08:56:45,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406089600] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:45,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:45,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 08:56:45,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281743756] [2025-02-06 08:56:45,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:45,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:56:45,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:45,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:56:45,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:56:45,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 592 [2025-02-06 08:56:45,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 646 transitions, 1750 flow. Second operand has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:45,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:45,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 592 [2025-02-06 08:56:45,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:47,220 INFO L124 PetriNetUnfolderBase]: 991/8750 cut-off events. [2025-02-06 08:56:47,220 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2025-02-06 08:56:47,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12490 conditions, 8750 events. 991/8750 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 73964 event pairs, 110 based on Foata normal form. 24/7986 useless extension candidates. Maximal degree in co-relation 11810. Up to 966 conditions per place. [2025-02-06 08:56:47,259 INFO L140 encePairwiseOnDemand]: 588/592 looper letters, 18 selfloop transitions, 3 changer transitions 0/634 dead transitions. [2025-02-06 08:56:47,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 634 transitions, 1719 flow [2025-02-06 08:56:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:56:47,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:56:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1723 transitions. [2025-02-06 08:56:47,262 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9701576576576577 [2025-02-06 08:56:47,262 INFO L175 Difference]: Start difference. First operand has 568 places, 646 transitions, 1750 flow. Second operand 3 states and 1723 transitions. [2025-02-06 08:56:47,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 634 transitions, 1719 flow [2025-02-06 08:56:47,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 634 transitions, 1705 flow, removed 7 selfloop flow, removed 0 redundant places. [2025-02-06 08:56:47,280 INFO L231 Difference]: Finished difference. Result has 568 places, 628 transitions, 1661 flow [2025-02-06 08:56:47,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1661, PETRI_PLACES=568, PETRI_TRANSITIONS=628} [2025-02-06 08:56:47,282 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -2 predicate places. [2025-02-06 08:56:47,282 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 628 transitions, 1661 flow [2025-02-06 08:56:47,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:47,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:47,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:47,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 08:56:47,283 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:47,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:47,284 INFO L85 PathProgramCache]: Analyzing trace with hash 300033979, now seen corresponding path program 1 times [2025-02-06 08:56:47,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:47,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225734541] [2025-02-06 08:56:47,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:47,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:47,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-06 08:56:47,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-06 08:56:47,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:47,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:56:47,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:47,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225734541] [2025-02-06 08:56:47,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225734541] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:47,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:47,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472906754] [2025-02-06 08:56:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:47,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:47,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:47,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:47,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:48,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 592 [2025-02-06 08:56:48,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 628 transitions, 1661 flow. Second operand has 6 states, 6 states have (on average 423.8333333333333) internal successors, (2543), 6 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:48,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:48,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 592 [2025-02-06 08:56:48,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:52,600 INFO L124 PetriNetUnfolderBase]: 6038/22406 cut-off events. [2025-02-06 08:56:52,601 INFO L125 PetriNetUnfolderBase]: For 4253/4484 co-relation queries the response was YES. [2025-02-06 08:56:52,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40984 conditions, 22406 events. 6038/22406 cut-off events. For 4253/4484 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 222007 event pairs, 3626 based on Foata normal form. 30/20391 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2025-02-06 08:56:52,709 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 228 selfloop transitions, 156 changer transitions 0/788 dead transitions. [2025-02-06 08:56:52,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 788 transitions, 2853 flow [2025-02-06 08:56:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2833 transitions. [2025-02-06 08:56:52,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7975788288288288 [2025-02-06 08:56:52,713 INFO L175 Difference]: Start difference. First operand has 568 places, 628 transitions, 1661 flow. Second operand 6 states and 2833 transitions. [2025-02-06 08:56:52,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 788 transitions, 2853 flow [2025-02-06 08:56:52,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 788 transitions, 2850 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 08:56:52,737 INFO L231 Difference]: Finished difference. Result has 576 places, 776 transitions, 2758 flow [2025-02-06 08:56:52,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2758, PETRI_PLACES=576, PETRI_TRANSITIONS=776} [2025-02-06 08:56:52,742 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 6 predicate places. [2025-02-06 08:56:52,742 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 776 transitions, 2758 flow [2025-02-06 08:56:52,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 423.8333333333333) internal successors, (2543), 6 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:52,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:52,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:52,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 08:56:52,743 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:52,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:52,747 INFO L85 PathProgramCache]: Analyzing trace with hash -645065793, now seen corresponding path program 1 times [2025-02-06 08:56:52,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:52,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795335120] [2025-02-06 08:56:52,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:52,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-02-06 08:56:52,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-02-06 08:56:52,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:52,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:56:53,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:53,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795335120] [2025-02-06 08:56:53,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795335120] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:53,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:53,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:53,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269950016] [2025-02-06 08:56:53,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:53,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:53,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:53,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:54,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 592 [2025-02-06 08:56:54,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 776 transitions, 2758 flow. Second operand has 6 states, 6 states have (on average 508.1666666666667) internal successors, (3049), 6 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:54,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:54,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 592 [2025-02-06 08:56:54,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:56:57,156 INFO L124 PetriNetUnfolderBase]: 2816/14526 cut-off events. [2025-02-06 08:56:57,157 INFO L125 PetriNetUnfolderBase]: For 4557/5238 co-relation queries the response was YES. [2025-02-06 08:56:57,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27626 conditions, 14526 events. 2816/14526 cut-off events. For 4557/5238 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 139658 event pairs, 749 based on Foata normal form. 51/13285 useless extension candidates. Maximal degree in co-relation 26599. Up to 3595 conditions per place. [2025-02-06 08:56:57,235 INFO L140 encePairwiseOnDemand]: 567/592 looper letters, 182 selfloop transitions, 59 changer transitions 0/840 dead transitions. [2025-02-06 08:56:57,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 840 transitions, 3568 flow [2025-02-06 08:56:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:56:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:56:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3167 transitions. [2025-02-06 08:56:57,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8916103603603603 [2025-02-06 08:56:57,240 INFO L175 Difference]: Start difference. First operand has 576 places, 776 transitions, 2758 flow. Second operand 6 states and 3167 transitions. [2025-02-06 08:56:57,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 840 transitions, 3568 flow [2025-02-06 08:56:57,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 840 transitions, 3472 flow, removed 48 selfloop flow, removed 0 redundant places. [2025-02-06 08:56:57,265 INFO L231 Difference]: Finished difference. Result has 585 places, 828 transitions, 3230 flow [2025-02-06 08:56:57,266 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=2660, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=775, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3230, PETRI_PLACES=585, PETRI_TRANSITIONS=828} [2025-02-06 08:56:57,267 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 15 predicate places. [2025-02-06 08:56:57,267 INFO L471 AbstractCegarLoop]: Abstraction has has 585 places, 828 transitions, 3230 flow [2025-02-06 08:56:57,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.1666666666667) internal successors, (3049), 6 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:57,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:56:57,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:56:57,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 08:56:57,269 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:56:57,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:56:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1367281731, now seen corresponding path program 1 times [2025-02-06 08:56:57,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:56:57,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567403358] [2025-02-06 08:56:57,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:56:57,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:56:57,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-06 08:56:57,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-06 08:56:57,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:56:57,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:56:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:56:57,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:56:57,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567403358] [2025-02-06 08:56:57,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567403358] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:56:57,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:56:57,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:56:57,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553425190] [2025-02-06 08:56:57,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:56:57,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:56:57,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:56:57,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:56:57,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:56:58,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 592 [2025-02-06 08:56:58,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 828 transitions, 3230 flow. Second operand has 6 states, 6 states have (on average 466.5) internal successors, (2799), 6 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:56:58,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:56:58,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 592 [2025-02-06 08:56:58,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:01,929 INFO L124 PetriNetUnfolderBase]: 4710/19221 cut-off events. [2025-02-06 08:57:01,930 INFO L125 PetriNetUnfolderBase]: For 8446/8780 co-relation queries the response was YES. [2025-02-06 08:57:02,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41220 conditions, 19221 events. 4710/19221 cut-off events. For 8446/8780 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188981 event pairs, 1581 based on Foata normal form. 59/17632 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2025-02-06 08:57:02,051 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 374 selfloop transitions, 156 changer transitions 0/988 dead transitions. [2025-02-06 08:57:02,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 988 transitions, 5098 flow [2025-02-06 08:57:02,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:57:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:57:02,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3043 transitions. [2025-02-06 08:57:02,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567004504504504 [2025-02-06 08:57:02,055 INFO L175 Difference]: Start difference. First operand has 585 places, 828 transitions, 3230 flow. Second operand 6 states and 3043 transitions. [2025-02-06 08:57:02,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 988 transitions, 5098 flow [2025-02-06 08:57:02,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 988 transitions, 5002 flow, removed 48 selfloop flow, removed 0 redundant places. [2025-02-06 08:57:02,090 INFO L231 Difference]: Finished difference. Result has 594 places, 976 transitions, 4618 flow [2025-02-06 08:57:02,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=3132, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4618, PETRI_PLACES=594, PETRI_TRANSITIONS=976} [2025-02-06 08:57:02,093 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 24 predicate places. [2025-02-06 08:57:02,093 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 976 transitions, 4618 flow [2025-02-06 08:57:02,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 466.5) internal successors, (2799), 6 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:02,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:02,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:02,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 08:57:02,098 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:02,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:02,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1586444398, now seen corresponding path program 1 times [2025-02-06 08:57:02,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:02,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159208531] [2025-02-06 08:57:02,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:02,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:02,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-02-06 08:57:02,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-02-06 08:57:02,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:02,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:57:02,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:02,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159208531] [2025-02-06 08:57:02,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159208531] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:02,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:02,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:57:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104689937] [2025-02-06 08:57:02,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:02,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:57:02,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:02,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:57:02,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:57:03,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 592 [2025-02-06 08:57:03,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 976 transitions, 4618 flow. Second operand has 6 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:03,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:03,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 592 [2025-02-06 08:57:03,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:08,836 INFO L124 PetriNetUnfolderBase]: 7085/25823 cut-off events. [2025-02-06 08:57:08,837 INFO L125 PetriNetUnfolderBase]: For 18989/19407 co-relation queries the response was YES. [2025-02-06 08:57:08,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63028 conditions, 25823 events. 7085/25823 cut-off events. For 18989/19407 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 262278 event pairs, 2895 based on Foata normal form. 58/23776 useless extension candidates. Maximal degree in co-relation 61630. Up to 11984 conditions per place. [2025-02-06 08:57:09,042 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 558 selfloop transitions, 156 changer transitions 0/1136 dead transitions. [2025-02-06 08:57:09,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1136 transitions, 7142 flow [2025-02-06 08:57:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:57:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:57:09,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2025-02-06 08:57:09,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8144707207207207 [2025-02-06 08:57:09,046 INFO L175 Difference]: Start difference. First operand has 594 places, 976 transitions, 4618 flow. Second operand 6 states and 2893 transitions. [2025-02-06 08:57:09,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 1136 transitions, 7142 flow [2025-02-06 08:57:09,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1136 transitions, 6662 flow, removed 240 selfloop flow, removed 0 redundant places. [2025-02-06 08:57:09,119 INFO L231 Difference]: Finished difference. Result has 603 places, 1124 transitions, 5910 flow [2025-02-06 08:57:09,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=4136, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=975, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5910, PETRI_PLACES=603, PETRI_TRANSITIONS=1124} [2025-02-06 08:57:09,121 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 33 predicate places. [2025-02-06 08:57:09,121 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 1124 transitions, 5910 flow [2025-02-06 08:57:09,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:09,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:09,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:09,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 08:57:09,122 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:09,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash -601568638, now seen corresponding path program 1 times [2025-02-06 08:57:09,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:09,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407832545] [2025-02-06 08:57:09,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:09,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:09,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-02-06 08:57:09,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-02-06 08:57:09,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:09,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:57:09,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:09,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407832545] [2025-02-06 08:57:09,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407832545] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:09,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:09,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:57:09,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214605575] [2025-02-06 08:57:09,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:09,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:57:09,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:09,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:57:09,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:57:10,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 592 [2025-02-06 08:57:10,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1124 transitions, 5910 flow. Second operand has 6 states, 6 states have (on average 438.1666666666667) internal successors, (2629), 6 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:10,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:10,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 592 [2025-02-06 08:57:10,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:16,468 INFO L124 PetriNetUnfolderBase]: 7511/26884 cut-off events. [2025-02-06 08:57:16,469 INFO L125 PetriNetUnfolderBase]: For 28720/29226 co-relation queries the response was YES. [2025-02-06 08:57:16,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72169 conditions, 26884 events. 7511/26884 cut-off events. For 28720/29226 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 273401 event pairs, 2522 based on Foata normal form. 60/24829 useless extension candidates. Maximal degree in co-relation 70749. Up to 12642 conditions per place. [2025-02-06 08:57:16,722 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 706 selfloop transitions, 156 changer transitions 0/1284 dead transitions. [2025-02-06 08:57:16,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1284 transitions, 9018 flow [2025-02-06 08:57:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:57:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:57:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2025-02-06 08:57:16,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8144707207207207 [2025-02-06 08:57:16,727 INFO L175 Difference]: Start difference. First operand has 603 places, 1124 transitions, 5910 flow. Second operand 6 states and 2893 transitions. [2025-02-06 08:57:16,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 1284 transitions, 9018 flow [2025-02-06 08:57:16,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 1284 transitions, 8250 flow, removed 384 selfloop flow, removed 0 redundant places. [2025-02-06 08:57:16,807 INFO L231 Difference]: Finished difference. Result has 612 places, 1272 transitions, 7202 flow [2025-02-06 08:57:16,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=5140, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7202, PETRI_PLACES=612, PETRI_TRANSITIONS=1272} [2025-02-06 08:57:16,808 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 42 predicate places. [2025-02-06 08:57:16,809 INFO L471 AbstractCegarLoop]: Abstraction has has 612 places, 1272 transitions, 7202 flow [2025-02-06 08:57:16,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.1666666666667) internal successors, (2629), 6 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:16,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:16,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:16,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 08:57:16,810 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:16,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:16,811 INFO L85 PathProgramCache]: Analyzing trace with hash -823485203, now seen corresponding path program 1 times [2025-02-06 08:57:16,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:16,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889240482] [2025-02-06 08:57:16,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:16,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-02-06 08:57:16,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-02-06 08:57:16,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:16,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:57:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889240482] [2025-02-06 08:57:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889240482] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:17,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:17,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:57:17,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39713167] [2025-02-06 08:57:17,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:17,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:57:17,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:17,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:57:17,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:57:17,901 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 592 [2025-02-06 08:57:17,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1272 transitions, 7202 flow. Second operand has 6 states, 6 states have (on average 439.8333333333333) internal successors, (2639), 6 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:17,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:17,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 592 [2025-02-06 08:57:17,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:23,715 INFO L124 PetriNetUnfolderBase]: 7133/25766 cut-off events. [2025-02-06 08:57:23,716 INFO L125 PetriNetUnfolderBase]: For 36887/37552 co-relation queries the response was YES. [2025-02-06 08:57:23,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74741 conditions, 25766 events. 7133/25766 cut-off events. For 36887/37552 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 261388 event pairs, 2299 based on Foata normal form. 10/23840 useless extension candidates. Maximal degree in co-relation 73287. Up to 12670 conditions per place. [2025-02-06 08:57:24,068 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 857 selfloop transitions, 5 changer transitions 0/1283 dead transitions. [2025-02-06 08:57:24,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1283 transitions, 8956 flow [2025-02-06 08:57:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:57:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:57:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2748 transitions. [2025-02-06 08:57:24,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7736486486486487 [2025-02-06 08:57:24,072 INFO L175 Difference]: Start difference. First operand has 612 places, 1272 transitions, 7202 flow. Second operand 6 states and 2748 transitions. [2025-02-06 08:57:24,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 1283 transitions, 8956 flow [2025-02-06 08:57:24,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 1283 transitions, 7900 flow, removed 528 selfloop flow, removed 0 redundant places. [2025-02-06 08:57:24,175 INFO L231 Difference]: Finished difference. Result has 616 places, 1271 transitions, 6154 flow [2025-02-06 08:57:24,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=6144, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6154, PETRI_PLACES=616, PETRI_TRANSITIONS=1271} [2025-02-06 08:57:24,176 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 46 predicate places. [2025-02-06 08:57:24,177 INFO L471 AbstractCegarLoop]: Abstraction has has 616 places, 1271 transitions, 6154 flow [2025-02-06 08:57:24,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 439.8333333333333) internal successors, (2639), 6 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:24,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:24,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:24,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 08:57:24,178 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:24,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1455601514, now seen corresponding path program 1 times [2025-02-06 08:57:24,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:24,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555143340] [2025-02-06 08:57:24,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:24,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:24,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-06 08:57:24,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-06 08:57:24,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:24,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:57:24,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:24,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555143340] [2025-02-06 08:57:24,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555143340] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:24,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:24,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:57:24,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059079694] [2025-02-06 08:57:24,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:24,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:57:24,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:24,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:57:24,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:57:25,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-02-06 08:57:25,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 1271 transitions, 6154 flow. Second operand has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:25,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:25,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-02-06 08:57:25,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:29,694 INFO L124 PetriNetUnfolderBase]: 5091/20469 cut-off events. [2025-02-06 08:57:29,694 INFO L125 PetriNetUnfolderBase]: For 25539/26035 co-relation queries the response was YES. [2025-02-06 08:57:29,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54392 conditions, 20469 events. 5091/20469 cut-off events. For 25539/26035 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 203955 event pairs, 719 based on Foata normal form. 90/19053 useless extension candidates. Maximal degree in co-relation 53197. Up to 5720 conditions per place. [2025-02-06 08:57:29,888 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 392 selfloop transitions, 5 changer transitions 0/1282 dead transitions. [2025-02-06 08:57:29,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 1282 transitions, 6978 flow [2025-02-06 08:57:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:57:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:57:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3088 transitions. [2025-02-06 08:57:29,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2025-02-06 08:57:29,892 INFO L175 Difference]: Start difference. First operand has 616 places, 1271 transitions, 6154 flow. Second operand 6 states and 3088 transitions. [2025-02-06 08:57:29,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 1282 transitions, 6978 flow [2025-02-06 08:57:29,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 1282 transitions, 6968 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:57:29,962 INFO L231 Difference]: Finished difference. Result has 615 places, 1270 transitions, 6152 flow [2025-02-06 08:57:29,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=6142, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6152, PETRI_PLACES=615, PETRI_TRANSITIONS=1270} [2025-02-06 08:57:29,964 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 45 predicate places. [2025-02-06 08:57:29,964 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 1270 transitions, 6152 flow [2025-02-06 08:57:29,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:29,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:29,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:29,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 08:57:29,965 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:29,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1055991597, now seen corresponding path program 1 times [2025-02-06 08:57:29,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:29,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240478282] [2025-02-06 08:57:29,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:29,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-02-06 08:57:29,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-02-06 08:57:29,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:29,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:57:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240478282] [2025-02-06 08:57:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240478282] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:57:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151653270] [2025-02-06 08:57:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:30,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:57:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:30,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:57:30,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:57:31,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-02-06 08:57:31,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 1270 transitions, 6152 flow. Second operand has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:31,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:31,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-02-06 08:57:31,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:36,246 INFO L124 PetriNetUnfolderBase]: 5091/20464 cut-off events. [2025-02-06 08:57:36,247 INFO L125 PetriNetUnfolderBase]: For 25539/26035 co-relation queries the response was YES. [2025-02-06 08:57:36,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54387 conditions, 20464 events. 5091/20464 cut-off events. For 25539/26035 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 203743 event pairs, 719 based on Foata normal form. 90/19053 useless extension candidates. Maximal degree in co-relation 53193. Up to 5720 conditions per place. [2025-02-06 08:57:36,418 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 392 selfloop transitions, 5 changer transitions 0/1281 dead transitions. [2025-02-06 08:57:36,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 1281 transitions, 6976 flow [2025-02-06 08:57:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:57:36,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:57:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3088 transitions. [2025-02-06 08:57:36,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2025-02-06 08:57:36,422 INFO L175 Difference]: Start difference. First operand has 615 places, 1270 transitions, 6152 flow. Second operand 6 states and 3088 transitions. [2025-02-06 08:57:36,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 1281 transitions, 6976 flow [2025-02-06 08:57:36,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 1281 transitions, 6966 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:57:36,489 INFO L231 Difference]: Finished difference. Result has 614 places, 1269 transitions, 6150 flow [2025-02-06 08:57:36,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=6140, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6150, PETRI_PLACES=614, PETRI_TRANSITIONS=1269} [2025-02-06 08:57:36,490 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 44 predicate places. [2025-02-06 08:57:36,490 INFO L471 AbstractCegarLoop]: Abstraction has has 614 places, 1269 transitions, 6150 flow [2025-02-06 08:57:36,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:36,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:36,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:36,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 08:57:36,495 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:36,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1031411653, now seen corresponding path program 1 times [2025-02-06 08:57:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:36,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346879344] [2025-02-06 08:57:36,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:36,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:36,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 255 statements into 1 equivalence classes. [2025-02-06 08:57:36,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 255 of 255 statements. [2025-02-06 08:57:36,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:36,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:57:36,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:36,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346879344] [2025-02-06 08:57:36,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346879344] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:36,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:36,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:57:36,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866565455] [2025-02-06 08:57:36,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:36,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:57:36,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:36,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:57:36,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:57:36,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 592 [2025-02-06 08:57:36,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 1269 transitions, 6150 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:36,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:36,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 592 [2025-02-06 08:57:36,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:57:41,686 INFO L124 PetriNetUnfolderBase]: 6707/26997 cut-off events. [2025-02-06 08:57:41,686 INFO L125 PetriNetUnfolderBase]: For 27338/27904 co-relation queries the response was YES. [2025-02-06 08:57:41,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66319 conditions, 26997 events. 6707/26997 cut-off events. For 27338/27904 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 258688 event pairs, 388 based on Foata normal form. 123/25200 useless extension candidates. Maximal degree in co-relation 65412. Up to 4697 conditions per place. [2025-02-06 08:57:41,879 INFO L140 encePairwiseOnDemand]: 587/592 looper letters, 21 selfloop transitions, 4 changer transitions 0/1279 dead transitions. [2025-02-06 08:57:41,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1279 transitions, 6223 flow [2025-02-06 08:57:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:57:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:57:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1724 transitions. [2025-02-06 08:57:41,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9707207207207207 [2025-02-06 08:57:41,881 INFO L175 Difference]: Start difference. First operand has 614 places, 1269 transitions, 6150 flow. Second operand 3 states and 1724 transitions. [2025-02-06 08:57:41,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 1279 transitions, 6223 flow [2025-02-06 08:57:41,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 1279 transitions, 6213 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 08:57:41,956 INFO L231 Difference]: Finished difference. Result has 613 places, 1273 transitions, 6174 flow [2025-02-06 08:57:41,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=6140, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=6174, PETRI_PLACES=613, PETRI_TRANSITIONS=1273} [2025-02-06 08:57:41,957 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 43 predicate places. [2025-02-06 08:57:41,957 INFO L471 AbstractCegarLoop]: Abstraction has has 613 places, 1273 transitions, 6174 flow [2025-02-06 08:57:41,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:41,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:57:41,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:57:41,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 08:57:41,958 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-02-06 08:57:41,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:57:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1170578586, now seen corresponding path program 1 times [2025-02-06 08:57:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:57:41,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43375465] [2025-02-06 08:57:41,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:57:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:57:41,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-02-06 08:57:41,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-02-06 08:57:41,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:57:41,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:57:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-06 08:57:42,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:57:42,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43375465] [2025-02-06 08:57:42,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43375465] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:57:42,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:57:42,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:57:42,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979149417] [2025-02-06 08:57:42,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:57:42,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:57:42,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:57:42,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:57:42,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:57:43,215 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 592 [2025-02-06 08:57:43,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1273 transitions, 6174 flow. Second operand has 6 states, 6 states have (on average 443.5) internal successors, (2661), 6 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:57:43,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:57:43,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 592 [2025-02-06 08:57:43,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand