./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --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/weaver/popl20-more-array-sum.wvr.c -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 e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:31:35,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:31:35,306 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:31:35,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:31:35,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:31:35,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:31:35,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:31:35,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:31:35,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:31:35,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:31:35,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:31:35,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:31:35,349 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:31:35,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:31:35,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:31:35,349 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:31:35,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:31:35,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:31:35,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:31:35,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:31:35,351 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:31:35,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:31:35,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:31:35,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:31:35,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:31:35,352 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:31:35,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:31:35,353 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 -> e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 [2025-02-06 09:31:35,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:31:35,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:31:35,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:31:35,666 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:31:35,666 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:31:35,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2025-02-06 09:31:36,989 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0aa811d80/c470c1d58c344b7c96ba730a35bc8f4b/FLAG5f995a6ce [2025-02-06 09:31:37,256 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:31:37,257 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2025-02-06 09:31:37,264 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0aa811d80/c470c1d58c344b7c96ba730a35bc8f4b/FLAG5f995a6ce [2025-02-06 09:31:37,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0aa811d80/c470c1d58c344b7c96ba730a35bc8f4b [2025-02-06 09:31:37,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:31:37,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:31:37,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:31:37,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:31:37,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:31:37,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ede652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37, skipping insertion in model container [2025-02-06 09:31:37,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:31:37,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:31:37,543 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:31:37,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:31:37,602 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:31:37,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37 WrapperNode [2025-02-06 09:31:37,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:31:37,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:31:37,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:31:37,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:31:37,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,668 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 359 [2025-02-06 09:31:37,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:31:37,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:31:37,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:31:37,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:31:37,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,715 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:31:37,735 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:31:37,735 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:31:37,735 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:31:37,736 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (1/1) ... [2025-02-06 09:31:37,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:31:37,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:31:37,770 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 09:31:37,774 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 09:31:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:31:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 09:31:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 09:31:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 09:31:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 09:31:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 09:31:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 09:31:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:31:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:31:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:31:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:31:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:31:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:31:37,794 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 09:31:37,887 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:31:37,889 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:31:38,486 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:31:38,486 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:31:38,528 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:31:38,529 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:31:38,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:31:38 BoogieIcfgContainer [2025-02-06 09:31:38,529 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:31:38,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:31:38,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:31:38,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:31:38,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:31:37" (1/3) ... [2025-02-06 09:31:38,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d46c0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:31:38, skipping insertion in model container [2025-02-06 09:31:38,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:31:37" (2/3) ... [2025-02-06 09:31:38,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d46c0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:31:38, skipping insertion in model container [2025-02-06 09:31:38,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:31:38" (3/3) ... [2025-02-06 09:31:38,543 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2025-02-06 09:31:38,564 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:31:38,565 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum.wvr.c that has 4 procedures, 474 locations, 1 initial locations, 5 loop locations, and 30 error locations. [2025-02-06 09:31:38,565 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:31:38,752 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 09:31:38,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 483 places, 500 transitions, 1021 flow [2025-02-06 09:31:38,988 INFO L124 PetriNetUnfolderBase]: 27/497 cut-off events. [2025-02-06 09:31:38,990 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 09:31:39,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 497 events. 27/497 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1039 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 380. Up to 2 conditions per place. [2025-02-06 09:31:39,008 INFO L82 GeneralOperation]: Start removeDead. Operand has 483 places, 500 transitions, 1021 flow [2025-02-06 09:31:39,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 480 transitions, 978 flow [2025-02-06 09:31:39,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:31:39,046 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;@632c5aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:31:39,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2025-02-06 09:31:39,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:31:39,052 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-02-06 09:31:39,052 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:31:39,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:39,056 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] [2025-02-06 09:31:39,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:39,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:39,061 INFO L85 PathProgramCache]: Analyzing trace with hash -79264842, now seen corresponding path program 1 times [2025-02-06 09:31:39,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:39,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533865051] [2025-02-06 09:31:39,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:39,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:39,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 09:31:39,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 09:31:39,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:39,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:31:39,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:39,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533865051] [2025-02-06 09:31:39,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533865051] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:39,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:39,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:39,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389165844] [2025-02-06 09:31:39,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:39,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:39,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:39,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:39,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 500 [2025-02-06 09:31:39,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 480 transitions, 978 flow. Second operand has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 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 09:31:39,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:39,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 500 [2025-02-06 09:31:39,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:39,674 INFO L124 PetriNetUnfolderBase]: 36/1189 cut-off events. [2025-02-06 09:31:39,674 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-02-06 09:31:39,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 1189 events. 36/1189 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5525 event pairs, 20 based on Foata normal form. 101/1149 useless extension candidates. Maximal degree in co-relation 979. Up to 58 conditions per place. [2025-02-06 09:31:39,694 INFO L140 encePairwiseOnDemand]: 477/500 looper letters, 15 selfloop transitions, 2 changer transitions 5/459 dead transitions. [2025-02-06 09:31:39,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 459 transitions, 970 flow [2025-02-06 09:31:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1415 transitions. [2025-02-06 09:31:39,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9433333333333334 [2025-02-06 09:31:39,720 INFO L175 Difference]: Start difference. First operand has 464 places, 480 transitions, 978 flow. Second operand 3 states and 1415 transitions. [2025-02-06 09:31:39,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 459 transitions, 970 flow [2025-02-06 09:31:39,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 459 transitions, 958 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 09:31:39,743 INFO L231 Difference]: Finished difference. Result has 459 places, 454 transitions, 918 flow [2025-02-06 09:31:39,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=459, PETRI_TRANSITIONS=454} [2025-02-06 09:31:39,753 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -5 predicate places. [2025-02-06 09:31:39,753 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 454 transitions, 918 flow [2025-02-06 09:31:39,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 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 09:31:39,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:39,755 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] [2025-02-06 09:31:39,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:31:39,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:39,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash 880253268, now seen corresponding path program 1 times [2025-02-06 09:31:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:39,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247027231] [2025-02-06 09:31:39,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:39,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:39,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 09:31:39,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 09:31:39,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:39,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:39,833 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 09:31:39,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:39,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247027231] [2025-02-06 09:31:39,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247027231] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:39,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:39,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:39,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444748536] [2025-02-06 09:31:39,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:39,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:39,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:39,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:39,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 500 [2025-02-06 09:31:39,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 454 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 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 09:31:39,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:39,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 500 [2025-02-06 09:31:39,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:40,162 INFO L124 PetriNetUnfolderBase]: 39/1139 cut-off events. [2025-02-06 09:31:40,162 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 09:31:40,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 1139 events. 39/1139 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5027 event pairs, 23 based on Foata normal form. 0/996 useless extension candidates. Maximal degree in co-relation 1187. Up to 66 conditions per place. [2025-02-06 09:31:40,184 INFO L140 encePairwiseOnDemand]: 497/500 looper letters, 16 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2025-02-06 09:31:40,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 453 transitions, 952 flow [2025-02-06 09:31:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1393 transitions. [2025-02-06 09:31:40,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9286666666666666 [2025-02-06 09:31:40,190 INFO L175 Difference]: Start difference. First operand has 459 places, 454 transitions, 918 flow. Second operand 3 states and 1393 transitions. [2025-02-06 09:31:40,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 453 transitions, 952 flow [2025-02-06 09:31:40,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 453 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:31:40,200 INFO L231 Difference]: Finished difference. Result has 453 places, 453 transitions, 916 flow [2025-02-06 09:31:40,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=453, PETRI_TRANSITIONS=453} [2025-02-06 09:31:40,202 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -11 predicate places. [2025-02-06 09:31:40,202 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 453 transitions, 916 flow [2025-02-06 09:31:40,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 0 states have call successors, (0), 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 09:31:40,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:40,203 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] [2025-02-06 09:31:40,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:31:40,203 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:40,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1831804540, now seen corresponding path program 1 times [2025-02-06 09:31:40,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:40,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008393326] [2025-02-06 09:31:40,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:40,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 09:31:40,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 09:31:40,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:40,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:40,266 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 09:31:40,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:40,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008393326] [2025-02-06 09:31:40,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008393326] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:40,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:40,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:40,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502465217] [2025-02-06 09:31:40,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:40,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:40,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:40,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:40,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:40,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 500 [2025-02-06 09:31:40,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 453 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 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 09:31:40,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:40,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 500 [2025-02-06 09:31:40,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:40,631 INFO L124 PetriNetUnfolderBase]: 68/1410 cut-off events. [2025-02-06 09:31:40,631 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-06 09:31:40,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1537 conditions, 1410 events. 68/1410 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7406 event pairs, 45 based on Foata normal form. 0/1241 useless extension candidates. Maximal degree in co-relation 1498. Up to 111 conditions per place. [2025-02-06 09:31:40,665 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 18 selfloop transitions, 1 changer transitions 0/448 dead transitions. [2025-02-06 09:31:40,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 448 transitions, 944 flow [2025-02-06 09:31:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1386 transitions. [2025-02-06 09:31:40,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.924 [2025-02-06 09:31:40,670 INFO L175 Difference]: Start difference. First operand has 453 places, 453 transitions, 916 flow. Second operand 3 states and 1386 transitions. [2025-02-06 09:31:40,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 448 transitions, 944 flow [2025-02-06 09:31:40,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 448 transitions, 940 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:31:40,680 INFO L231 Difference]: Finished difference. Result has 448 places, 448 transitions, 904 flow [2025-02-06 09:31:40,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=448, PETRI_TRANSITIONS=448} [2025-02-06 09:31:40,681 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -16 predicate places. [2025-02-06 09:31:40,682 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 448 transitions, 904 flow [2025-02-06 09:31:40,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 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 09:31:40,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:40,683 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] [2025-02-06 09:31:40,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:31:40,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:40,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:40,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1870690529, now seen corresponding path program 1 times [2025-02-06 09:31:40,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:40,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904010422] [2025-02-06 09:31:40,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:40,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:40,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 09:31:40,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 09:31:40,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:40,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:41,366 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 09:31:41,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:41,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904010422] [2025-02-06 09:31:41,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904010422] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:41,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:41,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:41,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053791480] [2025-02-06 09:31:41,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:41,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:41,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:41,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:41,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:41,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 500 [2025-02-06 09:31:41,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 448 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 419.5) internal successors, (2517), 6 states have internal predecessors, (2517), 0 states have call successors, (0), 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 09:31:41,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:41,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 500 [2025-02-06 09:31:41,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:44,414 INFO L124 PetriNetUnfolderBase]: 2314/17706 cut-off events. [2025-02-06 09:31:44,415 INFO L125 PetriNetUnfolderBase]: For 219/219 co-relation queries the response was YES. [2025-02-06 09:31:44,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21249 conditions, 17706 events. 2314/17706 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 215897 event pairs, 1879 based on Foata normal form. 0/15700 useless extension candidates. Maximal degree in co-relation 21211. Up to 3430 conditions per place. [2025-02-06 09:31:44,565 INFO L140 encePairwiseOnDemand]: 488/500 looper letters, 48 selfloop transitions, 10 changer transitions 0/446 dead transitions. [2025-02-06 09:31:44,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 446 transitions, 1016 flow [2025-02-06 09:31:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2568 transitions. [2025-02-06 09:31:44,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.856 [2025-02-06 09:31:44,572 INFO L175 Difference]: Start difference. First operand has 448 places, 448 transitions, 904 flow. Second operand 6 states and 2568 transitions. [2025-02-06 09:31:44,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 446 transitions, 1016 flow [2025-02-06 09:31:44,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 446 transitions, 1015 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:31:44,579 INFO L231 Difference]: Finished difference. Result has 450 places, 446 transitions, 919 flow [2025-02-06 09:31:44,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=450, PETRI_TRANSITIONS=446} [2025-02-06 09:31:44,581 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -14 predicate places. [2025-02-06 09:31:44,581 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 446 transitions, 919 flow [2025-02-06 09:31:44,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 419.5) internal successors, (2517), 6 states have internal predecessors, (2517), 0 states have call successors, (0), 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 09:31:44,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:44,583 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:31:44,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:31:44,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:44,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:44,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1054026362, now seen corresponding path program 1 times [2025-02-06 09:31:44,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:44,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932752297] [2025-02-06 09:31:44,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:44,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:44,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 09:31:44,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 09:31:44,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:44,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:44,630 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 09:31:44,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:44,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932752297] [2025-02-06 09:31:44,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932752297] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:44,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:44,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:44,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944460457] [2025-02-06 09:31:44,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:44,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:44,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:44,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:44,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:44,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 500 [2025-02-06 09:31:44,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 446 transitions, 919 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 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 09:31:44,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:44,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 500 [2025-02-06 09:31:44,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:44,842 INFO L124 PetriNetUnfolderBase]: 58/1292 cut-off events. [2025-02-06 09:31:44,843 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-02-06 09:31:44,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 1292 events. 58/1292 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6630 event pairs, 38 based on Foata normal form. 0/1155 useless extension candidates. Maximal degree in co-relation 1376. Up to 93 conditions per place. [2025-02-06 09:31:44,868 INFO L140 encePairwiseOnDemand]: 497/500 looper letters, 14 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2025-02-06 09:31:44,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 445 transitions, 949 flow [2025-02-06 09:31:44,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:44,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:44,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1397 transitions. [2025-02-06 09:31:44,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9313333333333333 [2025-02-06 09:31:44,874 INFO L175 Difference]: Start difference. First operand has 450 places, 446 transitions, 919 flow. Second operand 3 states and 1397 transitions. [2025-02-06 09:31:44,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 445 transitions, 949 flow [2025-02-06 09:31:44,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 445 transitions, 929 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:31:44,885 INFO L231 Difference]: Finished difference. Result has 446 places, 445 transitions, 901 flow [2025-02-06 09:31:44,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=901, PETRI_PLACES=446, PETRI_TRANSITIONS=445} [2025-02-06 09:31:44,889 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -18 predicate places. [2025-02-06 09:31:44,890 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 445 transitions, 901 flow [2025-02-06 09:31:44,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 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 09:31:44,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:44,892 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] [2025-02-06 09:31:44,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:31:44,892 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:44,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1504494366, now seen corresponding path program 1 times [2025-02-06 09:31:44,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:44,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646481585] [2025-02-06 09:31:44,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:44,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:44,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-06 09:31:44,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 09:31:44,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:44,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:44,958 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 09:31:44,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:44,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646481585] [2025-02-06 09:31:44,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646481585] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:44,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:44,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:44,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887788187] [2025-02-06 09:31:44,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:44,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:44,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:44,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:44,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 500 [2025-02-06 09:31:44,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 445 transitions, 901 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 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 09:31:44,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:44,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 500 [2025-02-06 09:31:44,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:45,174 INFO L124 PetriNetUnfolderBase]: 50/1051 cut-off events. [2025-02-06 09:31:45,174 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-06 09:31:45,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 1051 events. 50/1051 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4838 event pairs, 38 based on Foata normal form. 0/938 useless extension candidates. Maximal degree in co-relation 1109. Up to 81 conditions per place. [2025-02-06 09:31:45,190 INFO L140 encePairwiseOnDemand]: 497/500 looper letters, 14 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2025-02-06 09:31:45,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 444 transitions, 931 flow [2025-02-06 09:31:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1397 transitions. [2025-02-06 09:31:45,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9313333333333333 [2025-02-06 09:31:45,194 INFO L175 Difference]: Start difference. First operand has 446 places, 445 transitions, 901 flow. Second operand 3 states and 1397 transitions. [2025-02-06 09:31:45,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 444 transitions, 931 flow [2025-02-06 09:31:45,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 444 transitions, 927 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:31:45,202 INFO L231 Difference]: Finished difference. Result has 445 places, 444 transitions, 899 flow [2025-02-06 09:31:45,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=445, PETRI_TRANSITIONS=444} [2025-02-06 09:31:45,205 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -19 predicate places. [2025-02-06 09:31:45,205 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 444 transitions, 899 flow [2025-02-06 09:31:45,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 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 09:31:45,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:45,206 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] [2025-02-06 09:31:45,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:31:45,206 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:45,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1611681059, now seen corresponding path program 1 times [2025-02-06 09:31:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:45,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923570128] [2025-02-06 09:31:45,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:45,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:45,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-02-06 09:31:45,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-02-06 09:31:45,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:45,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:45,292 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 09:31:45,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:45,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923570128] [2025-02-06 09:31:45,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923570128] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:45,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:45,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319724663] [2025-02-06 09:31:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:45,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:45,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:45,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:45,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:45,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 500 [2025-02-06 09:31:45,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 444 transitions, 899 flow. Second operand has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 0 states have call successors, (0), 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 09:31:45,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:45,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 500 [2025-02-06 09:31:45,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:45,499 INFO L124 PetriNetUnfolderBase]: 61/1443 cut-off events. [2025-02-06 09:31:45,499 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2025-02-06 09:31:45,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 1443 events. 61/1443 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7857 event pairs, 39 based on Foata normal form. 0/1301 useless extension candidates. Maximal degree in co-relation 1510. Up to 93 conditions per place. [2025-02-06 09:31:45,526 INFO L140 encePairwiseOnDemand]: 495/500 looper letters, 16 selfloop transitions, 1 changer transitions 0/440 dead transitions. [2025-02-06 09:31:45,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 440 transitions, 925 flow [2025-02-06 09:31:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2025-02-06 09:31:45,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.928 [2025-02-06 09:31:45,530 INFO L175 Difference]: Start difference. First operand has 445 places, 444 transitions, 899 flow. Second operand 3 states and 1392 transitions. [2025-02-06 09:31:45,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 440 transitions, 925 flow [2025-02-06 09:31:45,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 440 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:31:45,537 INFO L231 Difference]: Finished difference. Result has 441 places, 440 transitions, 889 flow [2025-02-06 09:31:45,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=889, PETRI_PLACES=441, PETRI_TRANSITIONS=440} [2025-02-06 09:31:45,540 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -23 predicate places. [2025-02-06 09:31:45,540 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 440 transitions, 889 flow [2025-02-06 09:31:45,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 0 states have call successors, (0), 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 09:31:45,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:45,541 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 09:31:45,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:31:45,542 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:45,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash -916711640, now seen corresponding path program 1 times [2025-02-06 09:31:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:45,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896244125] [2025-02-06 09:31:45,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:45,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:45,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-06 09:31:45,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 09:31:45,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:45,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:45,609 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 09:31:45,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:45,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896244125] [2025-02-06 09:31:45,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896244125] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:45,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:45,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:45,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047043885] [2025-02-06 09:31:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:45,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:45,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:45,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:45,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:45,632 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 500 [2025-02-06 09:31:45,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 440 transitions, 889 flow. Second operand has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 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 09:31:45,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:45,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 500 [2025-02-06 09:31:45,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:45,840 INFO L124 PetriNetUnfolderBase]: 41/1274 cut-off events. [2025-02-06 09:31:45,841 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:31:45,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1359 conditions, 1274 events. 41/1274 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5261 event pairs, 15 based on Foata normal form. 1/1149 useless extension candidates. Maximal degree in co-relation 1321. Up to 37 conditions per place. [2025-02-06 09:31:45,857 INFO L140 encePairwiseOnDemand]: 495/500 looper letters, 12 selfloop transitions, 2 changer transitions 2/442 dead transitions. [2025-02-06 09:31:45,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 442 transitions, 927 flow [2025-02-06 09:31:45,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1407 transitions. [2025-02-06 09:31:45,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.938 [2025-02-06 09:31:45,861 INFO L175 Difference]: Start difference. First operand has 441 places, 440 transitions, 889 flow. Second operand 3 states and 1407 transitions. [2025-02-06 09:31:45,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 442 transitions, 927 flow [2025-02-06 09:31:45,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 442 transitions, 926 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:31:45,869 INFO L231 Difference]: Finished difference. Result has 440 places, 436 transitions, 883 flow [2025-02-06 09:31:45,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=883, PETRI_PLACES=440, PETRI_TRANSITIONS=436} [2025-02-06 09:31:45,870 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -24 predicate places. [2025-02-06 09:31:45,870 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 436 transitions, 883 flow [2025-02-06 09:31:45,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 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 09:31:45,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:45,871 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] [2025-02-06 09:31:45,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:31:45,871 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:45,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash -491558647, now seen corresponding path program 1 times [2025-02-06 09:31:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:45,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786230616] [2025-02-06 09:31:45,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:45,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:45,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-02-06 09:31:45,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-02-06 09:31:45,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:45,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:45,928 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 09:31:45,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786230616] [2025-02-06 09:31:45,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786230616] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:45,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:45,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:45,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337789242] [2025-02-06 09:31:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:45,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:45,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:45,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:45,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:45,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 500 [2025-02-06 09:31:45,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 436 transitions, 883 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 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 09:31:45,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:45,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 500 [2025-02-06 09:31:45,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:46,407 INFO L124 PetriNetUnfolderBase]: 185/3164 cut-off events. [2025-02-06 09:31:46,407 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 09:31:46,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 3164 events. 185/3164 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 24596 event pairs, 48 based on Foata normal form. 0/2850 useless extension candidates. Maximal degree in co-relation 3426. Up to 262 conditions per place. [2025-02-06 09:31:46,439 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 18 selfloop transitions, 3 changer transitions 0/440 dead transitions. [2025-02-06 09:31:46,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 440 transitions, 937 flow [2025-02-06 09:31:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:46,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1404 transitions. [2025-02-06 09:31:46,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.936 [2025-02-06 09:31:46,443 INFO L175 Difference]: Start difference. First operand has 440 places, 436 transitions, 883 flow. Second operand 3 states and 1404 transitions. [2025-02-06 09:31:46,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 440 transitions, 937 flow [2025-02-06 09:31:46,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 440 transitions, 933 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:31:46,454 INFO L231 Difference]: Finished difference. Result has 436 places, 436 transitions, 894 flow [2025-02-06 09:31:46,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=436, PETRI_TRANSITIONS=436} [2025-02-06 09:31:46,455 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -28 predicate places. [2025-02-06 09:31:46,455 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 436 transitions, 894 flow [2025-02-06 09:31:46,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 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 09:31:46,456 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:46,457 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] [2025-02-06 09:31:46,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 09:31:46,457 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:46,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash -207417588, now seen corresponding path program 1 times [2025-02-06 09:31:46,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:46,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940937921] [2025-02-06 09:31:46,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:46,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:46,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-02-06 09:31:46,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-02-06 09:31:46,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:46,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:46,653 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 09:31:46,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:46,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940937921] [2025-02-06 09:31:46,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940937921] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:46,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:46,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 09:31:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210571212] [2025-02-06 09:31:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:46,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 09:31:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:46,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 09:31:46,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:31:46,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 500 [2025-02-06 09:31:46,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 436 transitions, 894 flow. Second operand has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 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 09:31:46,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:46,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 500 [2025-02-06 09:31:46,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:47,620 INFO L124 PetriNetUnfolderBase]: 164/3595 cut-off events. [2025-02-06 09:31:47,620 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-02-06 09:31:47,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3964 conditions, 3595 events. 164/3595 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 25617 event pairs, 67 based on Foata normal form. 8/3274 useless extension candidates. Maximal degree in co-relation 3924. Up to 148 conditions per place. [2025-02-06 09:31:47,644 INFO L140 encePairwiseOnDemand]: 479/500 looper letters, 35 selfloop transitions, 28 changer transitions 0/468 dead transitions. [2025-02-06 09:31:47,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 468 transitions, 1091 flow [2025-02-06 09:31:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:31:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 09:31:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4524 transitions. [2025-02-06 09:31:47,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9048 [2025-02-06 09:31:47,653 INFO L175 Difference]: Start difference. First operand has 436 places, 436 transitions, 894 flow. Second operand 10 states and 4524 transitions. [2025-02-06 09:31:47,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 468 transitions, 1091 flow [2025-02-06 09:31:47,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 468 transitions, 1091 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:31:47,659 INFO L231 Difference]: Finished difference. Result has 449 places, 452 transitions, 1023 flow [2025-02-06 09:31:47,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1023, PETRI_PLACES=449, PETRI_TRANSITIONS=452} [2025-02-06 09:31:47,660 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -15 predicate places. [2025-02-06 09:31:47,661 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 452 transitions, 1023 flow [2025-02-06 09:31:47,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 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 09:31:47,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:47,663 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] [2025-02-06 09:31:47,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:31:47,663 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:47,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -815382832, now seen corresponding path program 1 times [2025-02-06 09:31:47,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:47,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045879020] [2025-02-06 09:31:47,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:47,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 09:31:47,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 09:31:47,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:47,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:47,807 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 09:31:47,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:47,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045879020] [2025-02-06 09:31:47,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045879020] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:47,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:47,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159514206] [2025-02-06 09:31:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:47,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:31:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:47,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:31:47,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:31:47,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 500 [2025-02-06 09:31:47,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 452 transitions, 1023 flow. Second operand has 5 states, 5 states have (on average 459.0) internal successors, (2295), 5 states have internal predecessors, (2295), 0 states have call successors, (0), 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 09:31:47,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:47,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 500 [2025-02-06 09:31:47,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:48,323 INFO L124 PetriNetUnfolderBase]: 200/2722 cut-off events. [2025-02-06 09:31:48,324 INFO L125 PetriNetUnfolderBase]: For 99/108 co-relation queries the response was YES. [2025-02-06 09:31:48,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3217 conditions, 2722 events. 200/2722 cut-off events. For 99/108 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 19283 event pairs, 85 based on Foata normal form. 12/2478 useless extension candidates. Maximal degree in co-relation 3168. Up to 212 conditions per place. [2025-02-06 09:31:48,377 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 26 selfloop transitions, 5 changer transitions 0/464 dead transitions. [2025-02-06 09:31:48,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 464 transitions, 1116 flow [2025-02-06 09:31:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:31:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 09:31:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2317 transitions. [2025-02-06 09:31:48,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9268 [2025-02-06 09:31:48,382 INFO L175 Difference]: Start difference. First operand has 449 places, 452 transitions, 1023 flow. Second operand 5 states and 2317 transitions. [2025-02-06 09:31:48,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 464 transitions, 1116 flow [2025-02-06 09:31:48,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 464 transitions, 1116 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:31:48,391 INFO L231 Difference]: Finished difference. Result has 455 places, 454 transitions, 1048 flow [2025-02-06 09:31:48,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1048, PETRI_PLACES=455, PETRI_TRANSITIONS=454} [2025-02-06 09:31:48,393 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -9 predicate places. [2025-02-06 09:31:48,393 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 454 transitions, 1048 flow [2025-02-06 09:31:48,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 459.0) internal successors, (2295), 5 states have internal predecessors, (2295), 0 states have call successors, (0), 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 09:31:48,394 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:48,395 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] [2025-02-06 09:31:48,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 09:31:48,395 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:48,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1715527604, now seen corresponding path program 1 times [2025-02-06 09:31:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:48,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217845434] [2025-02-06 09:31:48,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:48,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 09:31:48,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 09:31:48,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:48,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:48,835 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 09:31:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217845434] [2025-02-06 09:31:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217845434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:48,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386340141] [2025-02-06 09:31:48,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:48,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:48,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:48,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:49,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 500 [2025-02-06 09:31:49,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 454 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 0 states have call successors, (0), 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 09:31:49,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:49,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 500 [2025-02-06 09:31:49,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:49,602 INFO L124 PetriNetUnfolderBase]: 250/3099 cut-off events. [2025-02-06 09:31:49,602 INFO L125 PetriNetUnfolderBase]: For 230/241 co-relation queries the response was YES. [2025-02-06 09:31:49,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3809 conditions, 3099 events. 250/3099 cut-off events. For 230/241 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 22208 event pairs, 71 based on Foata normal form. 0/2816 useless extension candidates. Maximal degree in co-relation 3759. Up to 243 conditions per place. [2025-02-06 09:31:49,639 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 34 selfloop transitions, 5 changer transitions 0/465 dead transitions. [2025-02-06 09:31:49,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 465 transitions, 1156 flow [2025-02-06 09:31:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2744 transitions. [2025-02-06 09:31:49,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9146666666666666 [2025-02-06 09:31:49,643 INFO L175 Difference]: Start difference. First operand has 455 places, 454 transitions, 1048 flow. Second operand 6 states and 2744 transitions. [2025-02-06 09:31:49,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 465 transitions, 1156 flow [2025-02-06 09:31:49,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 465 transitions, 1151 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:31:49,651 INFO L231 Difference]: Finished difference. Result has 457 places, 453 transitions, 1051 flow [2025-02-06 09:31:49,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1051, PETRI_PLACES=457, PETRI_TRANSITIONS=453} [2025-02-06 09:31:49,652 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -7 predicate places. [2025-02-06 09:31:49,652 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 453 transitions, 1051 flow [2025-02-06 09:31:49,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 0 states have call successors, (0), 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 09:31:49,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:49,654 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] [2025-02-06 09:31:49,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 09:31:49,654 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:49,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:49,655 INFO L85 PathProgramCache]: Analyzing trace with hash 645449325, now seen corresponding path program 1 times [2025-02-06 09:31:49,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:49,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975568356] [2025-02-06 09:31:49,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:49,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:49,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-06 09:31:49,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-06 09:31:49,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:49,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:49,700 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 09:31:49,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:49,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975568356] [2025-02-06 09:31:49,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975568356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:49,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:49,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:49,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202029050] [2025-02-06 09:31:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:49,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:49,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:49,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:49,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:49,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 500 [2025-02-06 09:31:49,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 453 transitions, 1051 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 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 09:31:49,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:49,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 500 [2025-02-06 09:31:49,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:50,829 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1212] L65-32-->L65-31: Formula: (= |v_#race~A~0_9| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_9|} AuxVars[] AssignedVars[#race~A~0][226], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 553#(= |#race~B~0| 0), Black: 513#true, 494#(= |#race~N~0| 0), 157#L65-31true, 304#L86-1true, 148#L56-31true, 105#L48-35true, 517#true, 515#(= |#race~A~0| 0), Black: 523#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 545#true, Black: 529#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 522#(<= ~N~0 0), 509#(= |#race~M~0| 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:50,829 INFO L294 olderBase$Statistics]: this new event has 335 ancestors and is cut-off event [2025-02-06 09:31:50,830 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:50,830 INFO L297 olderBase$Statistics]: existing Event has 331 ancestors and is cut-off event [2025-02-06 09:31:50,830 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:50,870 INFO L124 PetriNetUnfolderBase]: 384/7928 cut-off events. [2025-02-06 09:31:50,870 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2025-02-06 09:31:50,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8879 conditions, 7928 events. 384/7928 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 76231 event pairs, 98 based on Foata normal form. 0/7299 useless extension candidates. Maximal degree in co-relation 8830. Up to 490 conditions per place. [2025-02-06 09:31:50,935 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 18 selfloop transitions, 3 changer transitions 0/457 dead transitions. [2025-02-06 09:31:50,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 457 transitions, 1105 flow [2025-02-06 09:31:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1404 transitions. [2025-02-06 09:31:50,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.936 [2025-02-06 09:31:50,938 INFO L175 Difference]: Start difference. First operand has 457 places, 453 transitions, 1051 flow. Second operand 3 states and 1404 transitions. [2025-02-06 09:31:50,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 457 transitions, 1105 flow [2025-02-06 09:31:50,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 457 transitions, 1095 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:31:50,948 INFO L231 Difference]: Finished difference. Result has 452 places, 453 transitions, 1056 flow [2025-02-06 09:31:50,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1035, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1056, PETRI_PLACES=452, PETRI_TRANSITIONS=453} [2025-02-06 09:31:50,950 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -12 predicate places. [2025-02-06 09:31:50,950 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 453 transitions, 1056 flow [2025-02-06 09:31:50,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 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 09:31:50,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:50,951 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] [2025-02-06 09:31:50,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 09:31:50,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:50,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1953782133, now seen corresponding path program 1 times [2025-02-06 09:31:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:50,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642777192] [2025-02-06 09:31:50,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:50,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:50,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-06 09:31:50,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 09:31:50,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:50,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:51,358 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 09:31:51,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:51,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642777192] [2025-02-06 09:31:51,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642777192] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:51,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:51,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:51,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383112785] [2025-02-06 09:31:51,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:51,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:51,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:51,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:51,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:51,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 500 [2025-02-06 09:31:51,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 453 transitions, 1056 flow. Second operand has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 0 states have call successors, (0), 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 09:31:51,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:51,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 500 [2025-02-06 09:31:51,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:52,616 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1212] L65-32-->L65-31: Formula: (= |v_#race~A~0_9| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_9|} AuxVars[] AssignedVars[#race~A~0][228], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 553#(= |#race~B~0| 0), Black: 513#true, 157#L65-31true, 494#(= |#race~N~0| 0), 555#true, 304#L86-1true, Black: 551#true, 148#L56-31true, 105#L48-35true, 517#true, 515#(= |#race~A~0| 0), Black: 523#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 529#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 522#(<= ~N~0 0), 509#(= |#race~M~0| 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:52,617 INFO L294 olderBase$Statistics]: this new event has 404 ancestors and is cut-off event [2025-02-06 09:31:52,617 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:52,617 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:52,617 INFO L297 olderBase$Statistics]: existing Event has 335 ancestors and is cut-off event [2025-02-06 09:31:52,618 INFO L124 PetriNetUnfolderBase]: 475/5756 cut-off events. [2025-02-06 09:31:52,619 INFO L125 PetriNetUnfolderBase]: For 254/269 co-relation queries the response was YES. [2025-02-06 09:31:52,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6907 conditions, 5756 events. 475/5756 cut-off events. For 254/269 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 50578 event pairs, 93 based on Foata normal form. 0/5325 useless extension candidates. Maximal degree in co-relation 6857. Up to 277 conditions per place. [2025-02-06 09:31:52,670 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 32 selfloop transitions, 5 changer transitions 0/464 dead transitions. [2025-02-06 09:31:52,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 464 transitions, 1160 flow [2025-02-06 09:31:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2744 transitions. [2025-02-06 09:31:52,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9146666666666666 [2025-02-06 09:31:52,675 INFO L175 Difference]: Start difference. First operand has 452 places, 453 transitions, 1056 flow. Second operand 6 states and 2744 transitions. [2025-02-06 09:31:52,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 464 transitions, 1160 flow [2025-02-06 09:31:52,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 464 transitions, 1160 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:31:52,684 INFO L231 Difference]: Finished difference. Result has 456 places, 452 transitions, 1064 flow [2025-02-06 09:31:52,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1064, PETRI_PLACES=456, PETRI_TRANSITIONS=452} [2025-02-06 09:31:52,685 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -8 predicate places. [2025-02-06 09:31:52,686 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 452 transitions, 1064 flow [2025-02-06 09:31:52,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 0 states have call successors, (0), 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 09:31:52,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:52,687 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] [2025-02-06 09:31:52,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 09:31:52,687 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:52,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1744369360, now seen corresponding path program 1 times [2025-02-06 09:31:52,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:52,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435801831] [2025-02-06 09:31:52,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:52,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:52,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 09:31:52,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 09:31:52,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:52,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:53,077 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 09:31:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435801831] [2025-02-06 09:31:53,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435801831] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:53,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:53,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:53,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049524499] [2025-02-06 09:31:53,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:53,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:53,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:53,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:53,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:53,429 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 500 [2025-02-06 09:31:53,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 452 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 0 states have call successors, (0), 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 09:31:53,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:53,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 500 [2025-02-06 09:31:53,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:53,979 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1212] L65-32-->L65-31: Formula: (= |v_#race~A~0_9| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_9|} AuxVars[] AssignedVars[#race~A~0][225], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 553#(= |#race~B~0| 0), Black: 513#true, 157#L65-31true, 555#true, 494#(= |#race~N~0| 0), 304#L86-1true, 148#L56-31true, Black: 551#true, 105#L48-35true, 561#true, 517#true, 515#(= |#race~A~0| 0), Black: 523#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 529#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 509#(= |#race~M~0| 0), Black: 522#(<= ~N~0 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:53,979 INFO L294 olderBase$Statistics]: this new event has 335 ancestors and is cut-off event [2025-02-06 09:31:53,979 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:53,979 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:53,979 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:54,030 INFO L124 PetriNetUnfolderBase]: 317/4281 cut-off events. [2025-02-06 09:31:54,030 INFO L125 PetriNetUnfolderBase]: For 246/257 co-relation queries the response was YES. [2025-02-06 09:31:54,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5276 conditions, 4281 events. 317/4281 cut-off events. For 246/257 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 34998 event pairs, 92 based on Foata normal form. 0/3948 useless extension candidates. Maximal degree in co-relation 5225. Up to 269 conditions per place. [2025-02-06 09:31:54,060 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 34 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2025-02-06 09:31:54,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 463 transitions, 1172 flow [2025-02-06 09:31:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2744 transitions. [2025-02-06 09:31:54,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9146666666666666 [2025-02-06 09:31:54,063 INFO L175 Difference]: Start difference. First operand has 456 places, 452 transitions, 1064 flow. Second operand 6 states and 2744 transitions. [2025-02-06 09:31:54,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 463 transitions, 1172 flow [2025-02-06 09:31:54,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 463 transitions, 1162 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:31:54,069 INFO L231 Difference]: Finished difference. Result has 455 places, 451 transitions, 1062 flow [2025-02-06 09:31:54,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1062, PETRI_PLACES=455, PETRI_TRANSITIONS=451} [2025-02-06 09:31:54,070 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -9 predicate places. [2025-02-06 09:31:54,070 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 451 transitions, 1062 flow [2025-02-06 09:31:54,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 0 states have call successors, (0), 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 09:31:54,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:54,070 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] [2025-02-06 09:31:54,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 09:31:54,071 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:54,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:54,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1568094553, now seen corresponding path program 1 times [2025-02-06 09:31:54,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:54,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277182664] [2025-02-06 09:31:54,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:54,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:54,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-06 09:31:54,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-06 09:31:54,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:54,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:54,416 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 09:31:54,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277182664] [2025-02-06 09:31:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277182664] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:54,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:54,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:54,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458075660] [2025-02-06 09:31:54,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:54,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:54,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:54,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:54,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:54,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 500 [2025-02-06 09:31:54,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 451 transitions, 1062 flow. Second operand has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 0 states have call successors, (0), 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 09:31:54,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:54,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 500 [2025-02-06 09:31:54,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:55,375 INFO L124 PetriNetUnfolderBase]: 389/4673 cut-off events. [2025-02-06 09:31:55,375 INFO L125 PetriNetUnfolderBase]: For 213/228 co-relation queries the response was YES. [2025-02-06 09:31:55,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5682 conditions, 4673 events. 389/4673 cut-off events. For 213/228 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 39233 event pairs, 78 based on Foata normal form. 0/4336 useless extension candidates. Maximal degree in co-relation 5631. Up to 278 conditions per place. [2025-02-06 09:31:55,420 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 32 selfloop transitions, 5 changer transitions 14/462 dead transitions. [2025-02-06 09:31:55,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 462 transitions, 1166 flow [2025-02-06 09:31:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2744 transitions. [2025-02-06 09:31:55,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9146666666666666 [2025-02-06 09:31:55,423 INFO L175 Difference]: Start difference. First operand has 455 places, 451 transitions, 1062 flow. Second operand 6 states and 2744 transitions. [2025-02-06 09:31:55,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 462 transitions, 1166 flow [2025-02-06 09:31:55,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 462 transitions, 1156 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:31:55,431 INFO L231 Difference]: Finished difference. Result has 454 places, 436 transitions, 989 flow [2025-02-06 09:31:55,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=989, PETRI_PLACES=454, PETRI_TRANSITIONS=436} [2025-02-06 09:31:55,432 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -10 predicate places. [2025-02-06 09:31:55,432 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 436 transitions, 989 flow [2025-02-06 09:31:55,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 0 states have call successors, (0), 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 09:31:55,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:55,434 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] [2025-02-06 09:31:55,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 09:31:55,434 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:55,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:55,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1134899364, now seen corresponding path program 1 times [2025-02-06 09:31:55,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:55,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667863540] [2025-02-06 09:31:55,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:55,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:55,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-06 09:31:55,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-06 09:31:55,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:55,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:31:55,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:55,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667863540] [2025-02-06 09:31:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667863540] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:55,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:55,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:55,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490354002] [2025-02-06 09:31:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:55,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:55,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:55,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:55,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:56,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 500 [2025-02-06 09:31:56,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 436 transitions, 989 flow. Second operand has 6 states, 6 states have (on average 453.8333333333333) internal successors, (2723), 6 states have internal predecessors, (2723), 0 states have call successors, (0), 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 09:31:56,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:56,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 500 [2025-02-06 09:31:56,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:56,607 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1116] L56-32-->L56-31: Formula: (= |v_#race~A~0_6| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_6|} AuxVars[] AssignedVars[#race~A~0][224], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 553#(= |#race~B~0| 0), Black: 513#true, 573#true, 157#L65-31true, 494#(= |#race~N~0| 0), 304#L86-1true, Black: 551#true, 148#L56-31true, 567#true, 105#L48-35true, 517#true, 515#(= |#race~A~0| 0), Black: 523#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 529#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 509#(= |#race~M~0| 0), Black: 522#(<= ~N~0 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:56,608 INFO L294 olderBase$Statistics]: this new event has 331 ancestors and is cut-off event [2025-02-06 09:31:56,608 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:56,608 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:56,608 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:56,641 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L66-1-->L64-5: Formula: (= |v_thread3Thread1of1ForFork0_~tmp~1#1_3| v_~res2~0_9) InVars {thread3Thread1of1ForFork0_~tmp~1#1=|v_thread3Thread1of1ForFork0_~tmp~1#1_3|} OutVars{~res2~0=v_~res2~0_9, thread3Thread1of1ForFork0_~tmp~1#1=|v_thread3Thread1of1ForFork0_~tmp~1#1_3|} AuxVars[] AssignedVars[~res2~0][436], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 572#(and (= (select (select |#race| ~B~0.base) (+ (* |thread3Thread1of1ForFork0_~i~2#1| 4) 3 ~B~0.offset)) 0) (= (select (select |#race| ~B~0.base) (+ (* |thread3Thread1of1ForFork0_~i~2#1| 4) ~B~0.offset 1)) 0) (= (select (select |#race| ~B~0.base) (+ (* |thread3Thread1of1ForFork0_~i~2#1| 4) 2 ~B~0.offset)) 0) (= (select (select |#race| ~B~0.base) (+ (* |thread3Thread1of1ForFork0_~i~2#1| 4) ~B~0.offset)) 0)), 553#(= |#race~B~0| 0), Black: 513#true, 573#true, 494#(= |#race~N~0| 0), Black: 551#true, 517#true, 515#(= |#race~A~0| 0), Black: 523#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 529#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 509#(= |#race~M~0| 0), Black: 522#(<= ~N~0 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 416#L64-5true, 163#L89true, Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:56,641 INFO L294 olderBase$Statistics]: this new event has 406 ancestors and is cut-off event [2025-02-06 09:31:56,641 INFO L297 olderBase$Statistics]: existing Event has 329 ancestors and is cut-off event [2025-02-06 09:31:56,641 INFO L297 olderBase$Statistics]: existing Event has 402 ancestors and is cut-off event [2025-02-06 09:31:56,641 INFO L297 olderBase$Statistics]: existing Event has 256 ancestors and is cut-off event [2025-02-06 09:31:56,689 INFO L124 PetriNetUnfolderBase]: 294/4122 cut-off events. [2025-02-06 09:31:56,689 INFO L125 PetriNetUnfolderBase]: For 57/66 co-relation queries the response was YES. [2025-02-06 09:31:56,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5033 conditions, 4122 events. 294/4122 cut-off events. For 57/66 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 30538 event pairs, 64 based on Foata normal form. 0/3847 useless extension candidates. Maximal degree in co-relation 4982. Up to 202 conditions per place. [2025-02-06 09:31:56,731 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 36 selfloop transitions, 5 changer transitions 0/451 dead transitions. [2025-02-06 09:31:56,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 451 transitions, 1109 flow [2025-02-06 09:31:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:56,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2748 transitions. [2025-02-06 09:31:56,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.916 [2025-02-06 09:31:56,735 INFO L175 Difference]: Start difference. First operand has 454 places, 436 transitions, 989 flow. Second operand 6 states and 2748 transitions. [2025-02-06 09:31:56,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 451 transitions, 1109 flow [2025-02-06 09:31:56,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 451 transitions, 1061 flow, removed 6 selfloop flow, removed 12 redundant places. [2025-02-06 09:31:56,743 INFO L231 Difference]: Finished difference. Result has 442 places, 435 transitions, 949 flow [2025-02-06 09:31:56,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=949, PETRI_PLACES=442, PETRI_TRANSITIONS=435} [2025-02-06 09:31:56,744 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -22 predicate places. [2025-02-06 09:31:56,744 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 435 transitions, 949 flow [2025-02-06 09:31:56,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.8333333333333) internal successors, (2723), 6 states have internal predecessors, (2723), 0 states have call successors, (0), 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 09:31:56,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:56,745 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] [2025-02-06 09:31:56,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 09:31:56,746 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:56,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash -967503480, now seen corresponding path program 1 times [2025-02-06 09:31:56,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:56,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291841957] [2025-02-06 09:31:56,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:56,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:56,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-06 09:31:56,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-06 09:31:56,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:56,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:31:57,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:57,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291841957] [2025-02-06 09:31:57,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291841957] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:57,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:57,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:31:57,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560860628] [2025-02-06 09:31:57,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:57,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:31:57,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:57,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:31:57,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:31:57,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 500 [2025-02-06 09:31:57,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 435 transitions, 949 flow. Second operand has 6 states, 6 states have (on average 453.8333333333333) internal successors, (2723), 6 states have internal predecessors, (2723), 0 states have call successors, (0), 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 09:31:57,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:57,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 500 [2025-02-06 09:31:57,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:57,946 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1116] L56-32-->L56-31: Formula: (= |v_#race~A~0_6| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_6|} AuxVars[] AssignedVars[#race~A~0][218], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 579#true, 553#(= |#race~B~0| 0), Black: 513#true, 573#true, 157#L65-31true, 494#(= |#race~N~0| 0), 304#L86-1true, 148#L56-31true, Black: 551#true, 105#L48-35true, 515#(= |#race~A~0| 0), 509#(= |#race~M~0| 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:57,946 INFO L294 olderBase$Statistics]: this new event has 331 ancestors and is cut-off event [2025-02-06 09:31:57,946 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:57,946 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:57,946 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:57,960 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L66-1-->L64-5: Formula: (= |v_thread3Thread1of1ForFork0_~tmp~1#1_3| v_~res2~0_9) InVars {thread3Thread1of1ForFork0_~tmp~1#1=|v_thread3Thread1of1ForFork0_~tmp~1#1_3|} OutVars{~res2~0=v_~res2~0_9, thread3Thread1of1ForFork0_~tmp~1#1=|v_thread3Thread1of1ForFork0_~tmp~1#1_3|} AuxVars[] AssignedVars[~res2~0][435], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 579#true, 553#(= |#race~B~0| 0), Black: 513#true, 573#true, 494#(= |#race~N~0| 0), Black: 551#true, 515#(= |#race~A~0| 0), 509#(= |#race~M~0| 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 416#L64-5true, 163#L89true, Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:57,960 INFO L294 olderBase$Statistics]: this new event has 406 ancestors and is cut-off event [2025-02-06 09:31:57,960 INFO L297 olderBase$Statistics]: existing Event has 329 ancestors and is cut-off event [2025-02-06 09:31:57,960 INFO L297 olderBase$Statistics]: existing Event has 402 ancestors and is cut-off event [2025-02-06 09:31:57,960 INFO L297 olderBase$Statistics]: existing Event has 256 ancestors and is cut-off event [2025-02-06 09:31:57,979 INFO L124 PetriNetUnfolderBase]: 241/3934 cut-off events. [2025-02-06 09:31:57,980 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-02-06 09:31:58,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4609 conditions, 3934 events. 241/3934 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 30458 event pairs, 70 based on Foata normal form. 0/3646 useless extension candidates. Maximal degree in co-relation 4565. Up to 196 conditions per place. [2025-02-06 09:31:58,018 INFO L140 encePairwiseOnDemand]: 494/500 looper letters, 36 selfloop transitions, 5 changer transitions 0/450 dead transitions. [2025-02-06 09:31:58,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 450 transitions, 1069 flow [2025-02-06 09:31:58,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:31:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:31:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2748 transitions. [2025-02-06 09:31:58,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.916 [2025-02-06 09:31:58,023 INFO L175 Difference]: Start difference. First operand has 442 places, 435 transitions, 949 flow. Second operand 6 states and 2748 transitions. [2025-02-06 09:31:58,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 450 transitions, 1069 flow [2025-02-06 09:31:58,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 450 transitions, 1059 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:31:58,030 INFO L231 Difference]: Finished difference. Result has 441 places, 434 transitions, 947 flow [2025-02-06 09:31:58,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=947, PETRI_PLACES=441, PETRI_TRANSITIONS=434} [2025-02-06 09:31:58,031 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -23 predicate places. [2025-02-06 09:31:58,031 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 434 transitions, 947 flow [2025-02-06 09:31:58,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.8333333333333) internal successors, (2723), 6 states have internal predecessors, (2723), 0 states have call successors, (0), 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 09:31:58,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:31:58,033 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] [2025-02-06 09:31:58,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 09:31:58,033 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err6ASSERT_VIOLATIONDATA_RACE, thread1Err5ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-06 09:31:58,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:31:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash -350262492, now seen corresponding path program 1 times [2025-02-06 09:31:58,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:31:58,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064223503] [2025-02-06 09:31:58,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:31:58,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:31:58,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-02-06 09:31:58,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-02-06 09:31:58,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:31:58,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:31:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:31:58,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:31:58,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064223503] [2025-02-06 09:31:58,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064223503] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:31:58,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:31:58,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:31:58,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130480449] [2025-02-06 09:31:58,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:31:58,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:31:58,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:31:58,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:31:58,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:31:58,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 500 [2025-02-06 09:31:58,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 434 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 464.6666666666667) internal successors, (1394), 3 states have internal predecessors, (1394), 0 states have call successors, (0), 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 09:31:58,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:31:58,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 500 [2025-02-06 09:31:58,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:31:58,691 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1212] L65-32-->L65-31: Formula: (= |v_#race~A~0_9| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_9|} AuxVars[] AssignedVars[#race~A~0][237], [Black: 542#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork1_~i~1#1| 0)), 579#true, 553#(= |#race~B~0| 0), Black: 513#true, 494#(= |#race~N~0| 0), 157#L65-31true, 304#L86-1true, 148#L56-31true, Black: 551#true, 105#L48-35true, 515#(= |#race~A~0| 0), 585#true, 509#(= |#race~M~0| 0), Black: 527#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 541#(<= (+ ~M~0 1) 0)]) [2025-02-06 09:31:58,691 INFO L294 olderBase$Statistics]: this new event has 331 ancestors and is cut-off event [2025-02-06 09:31:58,691 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:58,691 INFO L297 olderBase$Statistics]: existing Event has 258 ancestors and is cut-off event [2025-02-06 09:31:58,691 INFO L297 olderBase$Statistics]: existing Event has 262 ancestors and is cut-off event [2025-02-06 09:31:58,742 INFO L124 PetriNetUnfolderBase]: 224/4171 cut-off events. [2025-02-06 09:31:58,742 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-06 09:31:58,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4770 conditions, 4171 events. 224/4171 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31003 event pairs, 74 based on Foata normal form. 0/3894 useless extension candidates. Maximal degree in co-relation 4727. Up to 202 conditions per place. [2025-02-06 09:31:58,776 INFO L140 encePairwiseOnDemand]: 497/500 looper letters, 0 selfloop transitions, 0 changer transitions 437/437 dead transitions. [2025-02-06 09:31:58,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 437 transitions, 987 flow [2025-02-06 09:31:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:31:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:31:58,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2025-02-06 09:31:58,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9373333333333334 [2025-02-06 09:31:58,778 INFO L175 Difference]: Start difference. First operand has 441 places, 434 transitions, 947 flow. Second operand 3 states and 1406 transitions. [2025-02-06 09:31:58,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 437 transitions, 987 flow [2025-02-06 09:31:58,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 437 transitions, 977 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:31:58,782 INFO L231 Difference]: Finished difference. Result has 437 places, 0 transitions, 0 flow [2025-02-06 09:31:58,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=437, PETRI_TRANSITIONS=0} [2025-02-06 09:31:58,782 INFO L279 CegarLoopForPetriNet]: 464 programPoint places, -27 predicate places. [2025-02-06 09:31:58,782 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 0 transitions, 0 flow [2025-02-06 09:31:58,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.6666666666667) internal successors, (1394), 3 states have internal predecessors, (1394), 0 states have call successors, (0), 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 09:31:58,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (50 of 51 remaining) [2025-02-06 09:31:58,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2025-02-06 09:31:58,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 51 remaining) [2025-02-06 09:31:58,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2025-02-06 09:31:58,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2025-02-06 09:31:58,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 09:31:58,788 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:31:58,793 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 09:31:58,793 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 09:31:58,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 09:31:58 BasicIcfg [2025-02-06 09:31:58,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 09:31:58,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 09:31:58,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 09:31:58,801 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 09:31:58,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:31:38" (3/4) ... [2025-02-06 09:31:58,803 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 09:31:58,806 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 09:31:58,806 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 09:31:58,806 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-06 09:31:58,811 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-06 09:31:58,812 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 09:31:58,812 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 09:31:58,813 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 09:31:58,899 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 09:31:58,900 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 09:31:58,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 09:31:58,901 INFO L158 Benchmark]: Toolchain (without parser) took 21621.00ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 113.1MB in the beginning and 309.2MB in the end (delta: -196.1MB). Peak memory consumption was 851.2MB. Max. memory is 16.1GB. [2025-02-06 09:31:58,902 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:31:58,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.52ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 100.0MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:31:58,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.91ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 97.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:31:58,903 INFO L158 Benchmark]: Boogie Preprocessor took 61.54ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 94.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:31:58,904 INFO L158 Benchmark]: IcfgBuilder took 794.57ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 59.0MB in the end (delta: 35.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 09:31:58,904 INFO L158 Benchmark]: TraceAbstraction took 20264.91ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 58.1MB in the beginning and 317.6MB in the end (delta: -259.5MB). Peak memory consumption was 792.5MB. Max. memory is 16.1GB. [2025-02-06 09:31:58,905 INFO L158 Benchmark]: Witness Printer took 99.73ms. Allocated memory is still 1.2GB. Free memory was 317.6MB in the beginning and 309.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:31:58,906 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.52ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 100.0MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.91ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 97.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.54ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 94.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 794.57ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 59.0MB in the end (delta: 35.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20264.91ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 58.1MB in the beginning and 317.6MB in the end (delta: -259.5MB). Peak memory consumption was 792.5MB. Max. memory is 16.1GB. * Witness Printer took 99.73ms. Allocated memory is still 1.2GB. Free memory was 317.6MB in the beginning and 309.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 750 locations, 51 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.0s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2034 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1148 mSDsluCounter, 546 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 365 mSDsCounter, 589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3479 IncrementalHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 589 mSolverCounterUnsat, 181 mSDtfsCounter, 3479 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred in iteration=14, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 2206 NumberOfCodeBlocks, 2206 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2187 ConstructedInterpolants, 0 QuantifiedInterpolants, 3302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 09:31:58,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE