./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:11:38,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:11:38,904 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:11:38,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:11:38,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:11:38,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:11:38,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:11:38,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:11:38,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:11:38,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:11:38,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:11:38,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:11:38,939 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:11:38,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:11:38,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:11:38,940 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:11:38,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:11:38,941 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:11:38,941 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:11:38,941 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:11:38,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:11:38,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:11:38,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:11:38,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:11:38,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:11:38,942 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/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 -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2025-03-08 22:11:39,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:11:39,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:11:39,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:11:39,167 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:11:39,167 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:11:39,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2025-03-08 22:11:40,289 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c50035ab/293624523d144f04abca48a8cbe35bad/FLAG03c7b5d8f [2025-03-08 22:11:40,606 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:11:40,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2025-03-08 22:11:40,624 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c50035ab/293624523d144f04abca48a8cbe35bad/FLAG03c7b5d8f [2025-03-08 22:11:40,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c50035ab/293624523d144f04abca48a8cbe35bad [2025-03-08 22:11:40,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:11:40,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:11:40,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:11:40,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:11:40,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:11:40,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:11:40" (1/1) ... [2025-03-08 22:11:40,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28917ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:40, skipping insertion in model container [2025-03-08 22:11:40,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:11:40" (1/1) ... [2025-03-08 22:11:40,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:11:40,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:11:40,952 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:11:40,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:11:41,020 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:11:41,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41 WrapperNode [2025-03-08 22:11:41,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:11:41,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:11:41,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:11:41,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:11:41,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,058 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2025-03-08 22:11:41,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:11:41,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:11:41,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:11:41,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:11:41,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,076 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:11:41,090 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:11:41,090 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:11:41,090 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:11:41,090 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (1/1) ... [2025-03-08 22:11:41,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:11:41,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:11:41,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:11:41,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-08 22:11:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-08 22:11:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:11:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:11:41,140 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:11:41,240 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:11:41,241 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:11:41,419 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:11:41,420 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:11:41,437 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:11:41,438 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:11:41,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:11:41 BoogieIcfgContainer [2025-03-08 22:11:41,438 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:11:41,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:11:41,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:11:41,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:11:41,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:11:40" (1/3) ... [2025-03-08 22:11:41,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6110e15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:11:41, skipping insertion in model container [2025-03-08 22:11:41,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:11:41" (2/3) ... [2025-03-08 22:11:41,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6110e15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:11:41, skipping insertion in model container [2025-03-08 22:11:41,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:11:41" (3/3) ... [2025-03-08 22:11:41,446 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2025-03-08 22:11:41,458 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:11:41,461 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-dynamic-race-2.i that has 2 procedures, 85 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-08 22:11:41,461 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:11:41,513 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:11:41,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 87 transitions, 181 flow [2025-03-08 22:11:41,580 INFO L124 PetriNetUnfolderBase]: 2/119 cut-off events. [2025-03-08 22:11:41,583 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:11:41,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 2/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 212 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2025-03-08 22:11:41,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 87 transitions, 181 flow [2025-03-08 22:11:41,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 87 transitions, 181 flow [2025-03-08 22:11:41,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:11:41,605 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;@2572a22f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:11:41,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-08 22:11:41,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:11:41,616 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2025-03-08 22:11:41,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:11:41,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:41,617 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] [2025-03-08 22:11:41,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-03-08 22:11:41,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:41,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1114153128, now seen corresponding path program 1 times [2025-03-08 22:11:41,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:41,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594914586] [2025-03-08 22:11:41,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:41,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:41,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 22:11:41,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 22:11:41,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:41,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:41,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:41,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594914586] [2025-03-08 22:11:41,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594914586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:41,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:41,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:41,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065571465] [2025-03-08 22:11:41,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:41,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:41,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:41,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:41,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:41,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 87 [2025-03-08 22:11:41,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2025-03-08 22:11:41,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:41,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 87 [2025-03-08 22:11:41,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:41,946 INFO L124 PetriNetUnfolderBase]: 8/161 cut-off events. [2025-03-08 22:11:41,948 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-03-08 22:11:41,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 161 events. 8/161 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 416 event pairs, 1 based on Foata normal form. 1/145 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2025-03-08 22:11:41,950 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 8 selfloop transitions, 3 changer transitions 2/90 dead transitions. [2025-03-08 22:11:41,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 211 flow [2025-03-08 22:11:41,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2025-03-08 22:11:41,962 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9501915708812261 [2025-03-08 22:11:41,963 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 181 flow. Second operand 3 states and 248 transitions. [2025-03-08 22:11:41,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 211 flow [2025-03-08 22:11:41,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:11:41,972 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 199 flow [2025-03-08 22:11:41,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2025-03-08 22:11:41,978 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2025-03-08 22:11:41,978 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 199 flow [2025-03-08 22:11:41,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2025-03-08 22:11:41,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:41,980 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] [2025-03-08 22:11:41,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:11:41,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-03-08 22:11:41,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1049312884, now seen corresponding path program 1 times [2025-03-08 22:11:41,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:41,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503802949] [2025-03-08 22:11:41,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:41,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:41,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:42,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:42,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:42,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:42,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:42,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503802949] [2025-03-08 22:11:42,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503802949] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:42,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:42,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:42,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663576589] [2025-03-08 22:11:42,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:42,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:42,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:42,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:42,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:42,607 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 87 [2025-03-08 22:11:42,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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) [2025-03-08 22:11:42,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:42,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 87 [2025-03-08 22:11:42,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:42,713 INFO L124 PetriNetUnfolderBase]: 31/266 cut-off events. [2025-03-08 22:11:42,713 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-08 22:11:42,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 266 events. 31/266 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1197 event pairs, 5 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 304. Up to 62 conditions per place. [2025-03-08 22:11:42,716 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 24 selfloop transitions, 5 changer transitions 0/94 dead transitions. [2025-03-08 22:11:42,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 271 flow [2025-03-08 22:11:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 414 transitions. [2025-03-08 22:11:42,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7931034482758621 [2025-03-08 22:11:42,719 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 199 flow. Second operand 6 states and 414 transitions. [2025-03-08 22:11:42,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 271 flow [2025-03-08 22:11:42,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:42,721 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 201 flow [2025-03-08 22:11:42,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=201, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2025-03-08 22:11:42,725 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2025-03-08 22:11:42,725 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 201 flow [2025-03-08 22:11:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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) [2025-03-08 22:11:42,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:42,725 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] [2025-03-08 22:11:42,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:11:42,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-03-08 22:11:42,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash -731909800, now seen corresponding path program 1 times [2025-03-08 22:11:42,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:42,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316382756] [2025-03-08 22:11:42,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:42,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:42,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:42,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:42,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:42,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:42,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:42,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316382756] [2025-03-08 22:11:42,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316382756] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:42,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:42,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:42,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519028230] [2025-03-08 22:11:42,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:42,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:11:42,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:42,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:11:42,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:11:42,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2025-03-08 22:11:42,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 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) [2025-03-08 22:11:42,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:42,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2025-03-08 22:11:42,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:42,936 INFO L124 PetriNetUnfolderBase]: 17/230 cut-off events. [2025-03-08 22:11:42,936 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:11:42,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 230 events. 17/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 822 event pairs, 1 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 227. Up to 49 conditions per place. [2025-03-08 22:11:42,937 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 15 selfloop transitions, 2 changer transitions 5/93 dead transitions. [2025-03-08 22:11:42,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 259 flow [2025-03-08 22:11:42,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2025-03-08 22:11:42,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8601532567049809 [2025-03-08 22:11:42,941 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 201 flow. Second operand 6 states and 449 transitions. [2025-03-08 22:11:42,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 259 flow [2025-03-08 22:11:42,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 249 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:42,943 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 209 flow [2025-03-08 22:11:42,943 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2025-03-08 22:11:42,944 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2025-03-08 22:11:42,944 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 209 flow [2025-03-08 22:11:42,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 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) [2025-03-08 22:11:42,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:42,944 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] [2025-03-08 22:11:42,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:11:42,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-03-08 22:11:42,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash -953264281, now seen corresponding path program 1 times [2025-03-08 22:11:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505181464] [2025-03-08 22:11:42,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:42,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 22:11:42,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 22:11:42,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:42,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:42,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:42,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505181464] [2025-03-08 22:11:42,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505181464] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:42,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:42,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417789886] [2025-03-08 22:11:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:42,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:42,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:42,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:43,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 87 [2025-03-08 22:11:43,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2025-03-08 22:11:43,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:43,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 87 [2025-03-08 22:11:43,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:43,026 INFO L124 PetriNetUnfolderBase]: 5/167 cut-off events. [2025-03-08 22:11:43,028 INFO L125 PetriNetUnfolderBase]: For 19/31 co-relation queries the response was YES. [2025-03-08 22:11:43,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 167 events. 5/167 cut-off events. For 19/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 469 event pairs, 3 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 187. Up to 25 conditions per place. [2025-03-08 22:11:43,030 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 8 selfloop transitions, 4 changer transitions 3/89 dead transitions. [2025-03-08 22:11:43,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 245 flow [2025-03-08 22:11:43,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2025-03-08 22:11:43,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9272030651340997 [2025-03-08 22:11:43,031 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 209 flow. Second operand 3 states and 242 transitions. [2025-03-08 22:11:43,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 245 flow [2025-03-08 22:11:43,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 231 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:43,034 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 217 flow [2025-03-08 22:11:43,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2025-03-08 22:11:43,036 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2025-03-08 22:11:43,036 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 217 flow [2025-03-08 22:11:43,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2025-03-08 22:11:43,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:43,036 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] [2025-03-08 22:11:43,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:11:43,037 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-03-08 22:11:43,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:43,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1742295382, now seen corresponding path program 1 times [2025-03-08 22:11:43,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:43,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432462377] [2025-03-08 22:11:43,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:43,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:43,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 22:11:43,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 22:11:43,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:43,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:43,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432462377] [2025-03-08 22:11:43,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432462377] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:43,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:43,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765087819] [2025-03-08 22:11:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:43,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:43,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:43,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:43,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:43,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 87 [2025-03-08 22:11:43,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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) [2025-03-08 22:11:43,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:43,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 87 [2025-03-08 22:11:43,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:43,468 INFO L124 PetriNetUnfolderBase]: 25/280 cut-off events. [2025-03-08 22:11:43,468 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2025-03-08 22:11:43,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 280 events. 25/280 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1221 event pairs, 15 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2025-03-08 22:11:43,469 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 12 selfloop transitions, 0 changer transitions 18/93 dead transitions. [2025-03-08 22:11:43,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 93 transitions, 285 flow [2025-03-08 22:11:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2025-03-08 22:11:43,471 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8122605363984674 [2025-03-08 22:11:43,471 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 217 flow. Second operand 6 states and 424 transitions. [2025-03-08 22:11:43,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 93 transitions, 285 flow [2025-03-08 22:11:43,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:43,473 INFO L231 Difference]: Finished difference. Result has 95 places, 75 transitions, 184 flow [2025-03-08 22:11:43,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=95, PETRI_TRANSITIONS=75} [2025-03-08 22:11:43,476 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2025-03-08 22:11:43,476 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 75 transitions, 184 flow [2025-03-08 22:11:43,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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) [2025-03-08 22:11:43,476 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:43,476 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:43,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:11:43,477 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-03-08 22:11:43,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:43,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1854877812, now seen corresponding path program 1 times [2025-03-08 22:11:43,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:43,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013702348] [2025-03-08 22:11:43,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:43,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:43,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 22:11:43,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 22:11:43,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:43,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:11:43,504 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:11:43,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 22:11:43,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 22:11:43,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:43,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:11:43,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:11:43,537 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:11:43,538 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2025-03-08 22:11:43,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2025-03-08 22:11:43,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2025-03-08 22:11:43,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2025-03-08 22:11:43,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2025-03-08 22:11:43,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2025-03-08 22:11:43,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:11:43,540 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 22:11:43,541 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:11:43,542 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-08 22:11:43,554 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 22:11:43,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 226 flow [2025-03-08 22:11:43,584 INFO L124 PetriNetUnfolderBase]: 4/199 cut-off events. [2025-03-08 22:11:43,585 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-08 22:11:43,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 199 events. 4/199 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 121. Up to 6 conditions per place. [2025-03-08 22:11:43,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 226 flow [2025-03-08 22:11:43,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 105 transitions, 226 flow [2025-03-08 22:11:43,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:11:43,587 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;@2572a22f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:11:43,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-08 22:11:43,590 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:11:43,590 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2025-03-08 22:11:43,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:11:43,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:43,590 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] [2025-03-08 22:11:43,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:43,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash 710885320, now seen corresponding path program 1 times [2025-03-08 22:11:43,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:43,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949724657] [2025-03-08 22:11:43,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:43,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:43,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 22:11:43,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 22:11:43,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:43,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:43,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:43,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:43,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949724657] [2025-03-08 22:11:43,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949724657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:43,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:43,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:43,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147113066] [2025-03-08 22:11:43,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:43,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:43,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:43,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:43,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:43,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 105 [2025-03-08 22:11:43,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 105 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2025-03-08 22:11:43,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:43,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 105 [2025-03-08 22:11:43,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:43,706 INFO L124 PetriNetUnfolderBase]: 119/719 cut-off events. [2025-03-08 22:11:43,707 INFO L125 PetriNetUnfolderBase]: For 68/92 co-relation queries the response was YES. [2025-03-08 22:11:43,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 719 events. 119/719 cut-off events. For 68/92 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4254 event pairs, 50 based on Foata normal form. 1/635 useless extension candidates. Maximal degree in co-relation 741. Up to 139 conditions per place. [2025-03-08 22:11:43,710 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 16 selfloop transitions, 4 changer transitions 1/111 dead transitions. [2025-03-08 22:11:43,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 278 flow [2025-03-08 22:11:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2025-03-08 22:11:43,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9365079365079365 [2025-03-08 22:11:43,715 INFO L175 Difference]: Start difference. First operand has 107 places, 105 transitions, 226 flow. Second operand 3 states and 295 transitions. [2025-03-08 22:11:43,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 278 flow [2025-03-08 22:11:43,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 111 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:11:43,717 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 252 flow [2025-03-08 22:11:43,717 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2025-03-08 22:11:43,717 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2025-03-08 22:11:43,717 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 252 flow [2025-03-08 22:11:43,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2025-03-08 22:11:43,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:43,718 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] [2025-03-08 22:11:43,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:11:43,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:43,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash 56009396, now seen corresponding path program 1 times [2025-03-08 22:11:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:43,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398193159] [2025-03-08 22:11:43,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:43,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:43,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:43,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:43,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:43,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:43,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398193159] [2025-03-08 22:11:43,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398193159] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:43,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:43,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:43,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190360801] [2025-03-08 22:11:43,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:43,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:43,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:43,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:43,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:44,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 105 [2025-03-08 22:11:44,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2025-03-08 22:11:44,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:44,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 105 [2025-03-08 22:11:44,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:44,202 INFO L124 PetriNetUnfolderBase]: 299/1280 cut-off events. [2025-03-08 22:11:44,202 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2025-03-08 22:11:44,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1280 events. 299/1280 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9574 event pairs, 58 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 1380. Up to 372 conditions per place. [2025-03-08 22:11:44,211 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 36 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2025-03-08 22:11:44,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 121 transitions, 364 flow [2025-03-08 22:11:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2025-03-08 22:11:44,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2025-03-08 22:11:44,213 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 252 flow. Second operand 6 states and 510 transitions. [2025-03-08 22:11:44,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 121 transitions, 364 flow [2025-03-08 22:11:44,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 121 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:44,219 INFO L231 Difference]: Finished difference. Result has 112 places, 105 transitions, 252 flow [2025-03-08 22:11:44,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2025-03-08 22:11:44,220 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 5 predicate places. [2025-03-08 22:11:44,220 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 252 flow [2025-03-08 22:11:44,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2025-03-08 22:11:44,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:44,220 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] [2025-03-08 22:11:44,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:11:44,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:44,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:44,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1725213288, now seen corresponding path program 1 times [2025-03-08 22:11:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:44,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204645269] [2025-03-08 22:11:44,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:44,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:44,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:44,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:44,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:44,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:44,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:44,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204645269] [2025-03-08 22:11:44,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204645269] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:44,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:44,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:44,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938880275] [2025-03-08 22:11:44,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:44,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:11:44,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:44,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:11:44,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:11:44,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 105 [2025-03-08 22:11:44,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 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) [2025-03-08 22:11:44,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:44,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 105 [2025-03-08 22:11:44,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:44,443 INFO L124 PetriNetUnfolderBase]: 179/1195 cut-off events. [2025-03-08 22:11:44,443 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2025-03-08 22:11:44,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 1195 events. 179/1195 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8636 event pairs, 75 based on Foata normal form. 1/1082 useless extension candidates. Maximal degree in co-relation 560. Up to 300 conditions per place. [2025-03-08 22:11:44,449 INFO L140 encePairwiseOnDemand]: 97/105 looper letters, 20 selfloop transitions, 2 changer transitions 5/113 dead transitions. [2025-03-08 22:11:44,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 113 transitions, 322 flow [2025-03-08 22:11:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 538 transitions. [2025-03-08 22:11:44,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8539682539682539 [2025-03-08 22:11:44,451 INFO L175 Difference]: Start difference. First operand has 112 places, 105 transitions, 252 flow. Second operand 6 states and 538 transitions. [2025-03-08 22:11:44,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 113 transitions, 322 flow [2025-03-08 22:11:44,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 113 transitions, 312 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:44,453 INFO L231 Difference]: Finished difference. Result has 116 places, 106 transitions, 264 flow [2025-03-08 22:11:44,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=106} [2025-03-08 22:11:44,454 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2025-03-08 22:11:44,454 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 106 transitions, 264 flow [2025-03-08 22:11:44,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 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) [2025-03-08 22:11:44,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:44,454 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] [2025-03-08 22:11:44,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 22:11:44,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:44,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:44,455 INFO L85 PathProgramCache]: Analyzing trace with hash 653324087, now seen corresponding path program 1 times [2025-03-08 22:11:44,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:44,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956420608] [2025-03-08 22:11:44,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:44,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 22:11:44,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 22:11:44,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:44,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:44,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:44,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956420608] [2025-03-08 22:11:44,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956420608] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:44,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:44,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:44,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524160625] [2025-03-08 22:11:44,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:44,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:44,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:44,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:44,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:44,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 105 [2025-03-08 22:11:44,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 106 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2025-03-08 22:11:44,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:44,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 105 [2025-03-08 22:11:44,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:44,596 INFO L124 PetriNetUnfolderBase]: 165/981 cut-off events. [2025-03-08 22:11:44,596 INFO L125 PetriNetUnfolderBase]: For 184/309 co-relation queries the response was YES. [2025-03-08 22:11:44,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 981 events. 165/981 cut-off events. For 184/309 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7102 event pairs, 88 based on Foata normal form. 3/878 useless extension candidates. Maximal degree in co-relation 1539. Up to 269 conditions per place. [2025-03-08 22:11:44,602 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 7 changer transitions 0/115 dead transitions. [2025-03-08 22:11:44,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 115 transitions, 348 flow [2025-03-08 22:11:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2025-03-08 22:11:44,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9238095238095239 [2025-03-08 22:11:44,603 INFO L175 Difference]: Start difference. First operand has 116 places, 106 transitions, 264 flow. Second operand 3 states and 291 transitions. [2025-03-08 22:11:44,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 115 transitions, 348 flow [2025-03-08 22:11:44,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 115 transitions, 336 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-08 22:11:44,607 INFO L231 Difference]: Finished difference. Result has 113 places, 111 transitions, 308 flow [2025-03-08 22:11:44,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=113, PETRI_TRANSITIONS=111} [2025-03-08 22:11:44,608 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2025-03-08 22:11:44,608 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 308 flow [2025-03-08 22:11:44,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2025-03-08 22:11:44,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:44,608 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] [2025-03-08 22:11:44,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 22:11:44,608 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:44,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -841519985, now seen corresponding path program 1 times [2025-03-08 22:11:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253517051] [2025-03-08 22:11:44,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:44,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 22:11:44,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 22:11:44,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:44,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 22:11:44,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:44,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253517051] [2025-03-08 22:11:44,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253517051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:44,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:44,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:44,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118828979] [2025-03-08 22:11:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:44,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:44,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:44,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:44,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:44,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 105 [2025-03-08 22:11:44,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 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) [2025-03-08 22:11:44,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:44,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 105 [2025-03-08 22:11:44,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:45,078 INFO L124 PetriNetUnfolderBase]: 356/1815 cut-off events. [2025-03-08 22:11:45,078 INFO L125 PetriNetUnfolderBase]: For 306/352 co-relation queries the response was YES. [2025-03-08 22:11:45,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 1815 events. 356/1815 cut-off events. For 306/352 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 15336 event pairs, 177 based on Foata normal form. 3/1659 useless extension candidates. Maximal degree in co-relation 2422. Up to 360 conditions per place. [2025-03-08 22:11:45,087 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 34 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2025-03-08 22:11:45,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 416 flow [2025-03-08 22:11:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2025-03-08 22:11:45,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8253968253968254 [2025-03-08 22:11:45,089 INFO L175 Difference]: Start difference. First operand has 113 places, 111 transitions, 308 flow. Second operand 6 states and 520 transitions. [2025-03-08 22:11:45,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 416 flow [2025-03-08 22:11:45,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:45,092 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 302 flow [2025-03-08 22:11:45,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2025-03-08 22:11:45,094 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2025-03-08 22:11:45,094 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 302 flow [2025-03-08 22:11:45,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 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) [2025-03-08 22:11:45,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:45,094 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:45,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 22:11:45,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1251487523, now seen corresponding path program 1 times [2025-03-08 22:11:45,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:45,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438855612] [2025-03-08 22:11:45,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:45,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:45,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-08 22:11:45,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-08 22:11:45,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:45,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 22:11:45,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:45,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438855612] [2025-03-08 22:11:45,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438855612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:45,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:45,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:11:45,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063998852] [2025-03-08 22:11:45,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:45,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:45,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:45,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:45,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:45,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 105 [2025-03-08 22:11:45,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-03-08 22:11:45,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:45,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 105 [2025-03-08 22:11:45,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:45,381 INFO L124 PetriNetUnfolderBase]: 141/992 cut-off events. [2025-03-08 22:11:45,381 INFO L125 PetriNetUnfolderBase]: For 139/167 co-relation queries the response was YES. [2025-03-08 22:11:45,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 992 events. 141/992 cut-off events. For 139/167 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6866 event pairs, 43 based on Foata normal form. 15/943 useless extension candidates. Maximal degree in co-relation 974. Up to 189 conditions per place. [2025-03-08 22:11:45,385 INFO L140 encePairwiseOnDemand]: 98/105 looper letters, 23 selfloop transitions, 6 changer transitions 6/123 dead transitions. [2025-03-08 22:11:45,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 123 transitions, 402 flow [2025-03-08 22:11:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:45,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2025-03-08 22:11:45,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2025-03-08 22:11:45,387 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 302 flow. Second operand 6 states and 540 transitions. [2025-03-08 22:11:45,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 123 transitions, 402 flow [2025-03-08 22:11:45,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 123 transitions, 390 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:45,389 INFO L231 Difference]: Finished difference. Result has 117 places, 110 transitions, 308 flow [2025-03-08 22:11:45,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=308, PETRI_PLACES=117, PETRI_TRANSITIONS=110} [2025-03-08 22:11:45,390 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 10 predicate places. [2025-03-08 22:11:45,390 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 110 transitions, 308 flow [2025-03-08 22:11:45,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-03-08 22:11:45,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:45,390 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:45,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 22:11:45,391 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:45,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash -438344035, now seen corresponding path program 1 times [2025-03-08 22:11:45,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:45,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855457391] [2025-03-08 22:11:45,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:45,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:45,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-08 22:11:45,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-08 22:11:45,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:45,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 22:11:45,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:45,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855457391] [2025-03-08 22:11:45,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855457391] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:45,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:45,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:45,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690014466] [2025-03-08 22:11:45,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:45,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:45,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:45,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:45,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:45,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 105 [2025-03-08 22:11:45,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2025-03-08 22:11:45,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:45,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 105 [2025-03-08 22:11:45,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:45,513 INFO L124 PetriNetUnfolderBase]: 56/601 cut-off events. [2025-03-08 22:11:45,513 INFO L125 PetriNetUnfolderBase]: For 216/281 co-relation queries the response was YES. [2025-03-08 22:11:45,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 601 events. 56/601 cut-off events. For 216/281 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3605 event pairs, 30 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 867. Up to 119 conditions per place. [2025-03-08 22:11:45,516 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 7 changer transitions 1/117 dead transitions. [2025-03-08 22:11:45,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 117 transitions, 385 flow [2025-03-08 22:11:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2025-03-08 22:11:45,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2025-03-08 22:11:45,518 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 308 flow. Second operand 3 states and 290 transitions. [2025-03-08 22:11:45,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 117 transitions, 385 flow [2025-03-08 22:11:45,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-08 22:11:45,520 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 350 flow [2025-03-08 22:11:45,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2025-03-08 22:11:45,520 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2025-03-08 22:11:45,520 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 350 flow [2025-03-08 22:11:45,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2025-03-08 22:11:45,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:45,521 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:45,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 22:11:45,521 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-03-08 22:11:45,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:45,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2107816406, now seen corresponding path program 1 times [2025-03-08 22:11:45,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:45,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150297803] [2025-03-08 22:11:45,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:45,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:45,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 22:11:45,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 22:11:45,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:45,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:11:45,544 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:11:45,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 22:11:45,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 22:11:45,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:45,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:11:45,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:11:45,565 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:11:45,565 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2025-03-08 22:11:45,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-03-08 22:11:45,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2025-03-08 22:11:45,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-03-08 22:11:45,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-03-08 22:11:45,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-03-08 22:11:45,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-03-08 22:11:45,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 22:11:45,566 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:45,566 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:11:45,566 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-08 22:11:45,578 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-08 22:11:45,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 123 transitions, 273 flow [2025-03-08 22:11:45,596 INFO L124 PetriNetUnfolderBase]: 9/324 cut-off events. [2025-03-08 22:11:45,596 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-03-08 22:11:45,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 324 events. 9/324 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 906 event pairs, 1 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 207. Up to 12 conditions per place. [2025-03-08 22:11:45,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 123 transitions, 273 flow [2025-03-08 22:11:45,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 123 transitions, 273 flow [2025-03-08 22:11:45,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:11:45,599 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;@2572a22f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:11:45,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-08 22:11:45,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:11:45,601 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2025-03-08 22:11:45,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:11:45,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:45,601 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] [2025-03-08 22:11:45,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:45,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1234074328, now seen corresponding path program 1 times [2025-03-08 22:11:45,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:45,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185250411] [2025-03-08 22:11:45,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:45,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:45,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 22:11:45,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 22:11:45,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:45,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:45,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:45,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185250411] [2025-03-08 22:11:45,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185250411] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:45,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:45,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914386555] [2025-03-08 22:11:45,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:45,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:45,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:45,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:45,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 123 [2025-03-08 22:11:45,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2025-03-08 22:11:45,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:45,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 123 [2025-03-08 22:11:45,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:45,921 INFO L124 PetriNetUnfolderBase]: 1071/3960 cut-off events. [2025-03-08 22:11:45,921 INFO L125 PetriNetUnfolderBase]: For 378/483 co-relation queries the response was YES. [2025-03-08 22:11:45,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 3960 events. 1071/3960 cut-off events. For 378/483 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 35635 event pairs, 542 based on Foata normal form. 1/3520 useless extension candidates. Maximal degree in co-relation 4604. Up to 1110 conditions per place. [2025-03-08 22:11:45,942 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 23 selfloop transitions, 5 changer transitions 1/132 dead transitions. [2025-03-08 22:11:45,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 347 flow [2025-03-08 22:11:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:45,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2025-03-08 22:11:45,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.926829268292683 [2025-03-08 22:11:45,943 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 273 flow. Second operand 3 states and 342 transitions. [2025-03-08 22:11:45,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 347 flow [2025-03-08 22:11:45,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:11:45,945 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 307 flow [2025-03-08 22:11:45,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2025-03-08 22:11:45,945 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 4 predicate places. [2025-03-08 22:11:45,945 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 307 flow [2025-03-08 22:11:45,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2025-03-08 22:11:45,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:45,945 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] [2025-03-08 22:11:45,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 22:11:45,946 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:45,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:45,946 INFO L85 PathProgramCache]: Analyzing trace with hash -739434636, now seen corresponding path program 1 times [2025-03-08 22:11:45,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:45,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664861631] [2025-03-08 22:11:45,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:45,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:45,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:45,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:45,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:45,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:46,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:46,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664861631] [2025-03-08 22:11:46,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664861631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:46,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:46,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:46,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120146311] [2025-03-08 22:11:46,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:46,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:46,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:46,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:46,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:46,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 123 [2025-03-08 22:11:46,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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) [2025-03-08 22:11:46,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:46,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 123 [2025-03-08 22:11:46,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:46,746 INFO L124 PetriNetUnfolderBase]: 2135/6767 cut-off events. [2025-03-08 22:11:46,746 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2025-03-08 22:11:46,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10999 conditions, 6767 events. 2135/6767 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 67079 event pairs, 440 based on Foata normal form. 0/5977 useless extension candidates. Maximal degree in co-relation 6937. Up to 2247 conditions per place. [2025-03-08 22:11:46,782 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 48 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2025-03-08 22:11:46,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 148 transitions, 459 flow [2025-03-08 22:11:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2025-03-08 22:11:46,784 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8211382113821138 [2025-03-08 22:11:46,784 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 307 flow. Second operand 6 states and 606 transitions. [2025-03-08 22:11:46,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 148 transitions, 459 flow [2025-03-08 22:11:46,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 148 transitions, 449 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:46,789 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 305 flow [2025-03-08 22:11:46,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2025-03-08 22:11:46,790 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2025-03-08 22:11:46,790 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 305 flow [2025-03-08 22:11:46,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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) [2025-03-08 22:11:46,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:46,790 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:46,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 22:11:46,790 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:46,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:46,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1774309976, now seen corresponding path program 1 times [2025-03-08 22:11:46,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:46,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681633357] [2025-03-08 22:11:46,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:46,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:46,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:46,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:46,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:46,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:46,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681633357] [2025-03-08 22:11:46,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681633357] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:46,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:46,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:46,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555818255] [2025-03-08 22:11:46,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:46,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:11:46,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:46,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:11:46,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:11:46,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 123 [2025-03-08 22:11:46,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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) [2025-03-08 22:11:46,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:46,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 123 [2025-03-08 22:11:46,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:47,362 INFO L124 PetriNetUnfolderBase]: 1392/6275 cut-off events. [2025-03-08 22:11:47,362 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2025-03-08 22:11:47,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8980 conditions, 6275 events. 1392/6275 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 63540 event pairs, 1074 based on Foata normal form. 1/5612 useless extension candidates. Maximal degree in co-relation 5639. Up to 1837 conditions per place. [2025-03-08 22:11:47,387 INFO L140 encePairwiseOnDemand]: 115/123 looper letters, 24 selfloop transitions, 2 changer transitions 5/132 dead transitions. [2025-03-08 22:11:47,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 383 flow [2025-03-08 22:11:47,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2025-03-08 22:11:47,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8482384823848238 [2025-03-08 22:11:47,389 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 305 flow. Second operand 6 states and 626 transitions. [2025-03-08 22:11:47,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 383 flow [2025-03-08 22:11:47,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 132 transitions, 373 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:47,392 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 317 flow [2025-03-08 22:11:47,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=317, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2025-03-08 22:11:47,392 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 9 predicate places. [2025-03-08 22:11:47,392 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 317 flow [2025-03-08 22:11:47,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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) [2025-03-08 22:11:47,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:47,393 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] [2025-03-08 22:11:47,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 22:11:47,393 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:47,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:47,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1921099033, now seen corresponding path program 1 times [2025-03-08 22:11:47,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:47,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801179517] [2025-03-08 22:11:47,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:47,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:47,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 22:11:47,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 22:11:47,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:47,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:47,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801179517] [2025-03-08 22:11:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801179517] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:47,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:47,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:47,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248272629] [2025-03-08 22:11:47,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:47,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:47,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:47,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:47,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:47,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 123 [2025-03-08 22:11:47,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2025-03-08 22:11:47,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:47,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 123 [2025-03-08 22:11:47,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:47,975 INFO L124 PetriNetUnfolderBase]: 1740/6509 cut-off events. [2025-03-08 22:11:47,975 INFO L125 PetriNetUnfolderBase]: For 1544/2149 co-relation queries the response was YES. [2025-03-08 22:11:47,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11100 conditions, 6509 events. 1740/6509 cut-off events. For 1544/2149 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 67919 event pairs, 967 based on Foata normal form. 10/5768 useless extension candidates. Maximal degree in co-relation 11041. Up to 2240 conditions per place. [2025-03-08 22:11:48,017 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 29 selfloop transitions, 9 changer transitions 0/140 dead transitions. [2025-03-08 22:11:48,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 140 transitions, 451 flow [2025-03-08 22:11:48,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:48,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2025-03-08 22:11:48,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9214092140921409 [2025-03-08 22:11:48,019 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 317 flow. Second operand 3 states and 340 transitions. [2025-03-08 22:11:48,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 140 transitions, 451 flow [2025-03-08 22:11:48,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 439 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-08 22:11:48,027 INFO L231 Difference]: Finished difference. Result has 132 places, 132 transitions, 381 flow [2025-03-08 22:11:48,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=132, PETRI_TRANSITIONS=132} [2025-03-08 22:11:48,027 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2025-03-08 22:11:48,028 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 132 transitions, 381 flow [2025-03-08 22:11:48,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2025-03-08 22:11:48,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:48,028 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] [2025-03-08 22:11:48,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 22:11:48,028 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:48,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 273444186, now seen corresponding path program 1 times [2025-03-08 22:11:48,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:48,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667151648] [2025-03-08 22:11:48,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:48,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:48,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 22:11:48,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 22:11:48,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:48,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667151648] [2025-03-08 22:11:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667151648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:48,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:48,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301529722] [2025-03-08 22:11:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:48,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:48,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:48,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:48,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2025-03-08 22:11:48,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2025-03-08 22:11:48,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:48,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2025-03-08 22:11:48,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:49,026 INFO L124 PetriNetUnfolderBase]: 2856/10331 cut-off events. [2025-03-08 22:11:49,026 INFO L125 PetriNetUnfolderBase]: For 1725/2289 co-relation queries the response was YES. [2025-03-08 22:11:49,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17463 conditions, 10331 events. 2856/10331 cut-off events. For 1725/2289 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 114519 event pairs, 1400 based on Foata normal form. 17/9185 useless extension candidates. Maximal degree in co-relation 13963. Up to 2139 conditions per place. [2025-03-08 22:11:49,071 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 46 selfloop transitions, 5 changer transitions 0/155 dead transitions. [2025-03-08 22:11:49,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 155 transitions, 529 flow [2025-03-08 22:11:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:49,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2025-03-08 22:11:49,073 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8346883468834688 [2025-03-08 22:11:49,073 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 381 flow. Second operand 6 states and 616 transitions. [2025-03-08 22:11:49,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 155 transitions, 529 flow [2025-03-08 22:11:49,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 155 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:49,080 INFO L231 Difference]: Finished difference. Result has 134 places, 131 transitions, 371 flow [2025-03-08 22:11:49,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=134, PETRI_TRANSITIONS=131} [2025-03-08 22:11:49,080 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2025-03-08 22:11:49,080 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 131 transitions, 371 flow [2025-03-08 22:11:49,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2025-03-08 22:11:49,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:49,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:49,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 22:11:49,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:49,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:49,081 INFO L85 PathProgramCache]: Analyzing trace with hash -803288970, now seen corresponding path program 1 times [2025-03-08 22:11:49,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:49,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076486847] [2025-03-08 22:11:49,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:49,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:49,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-08 22:11:49,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-08 22:11:49,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:49,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:49,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:49,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076486847] [2025-03-08 22:11:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076486847] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:49,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:49,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:11:49,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194686574] [2025-03-08 22:11:49,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:49,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:49,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:49,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:49,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:49,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 123 [2025-03-08 22:11:49,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 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) [2025-03-08 22:11:49,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:49,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 123 [2025-03-08 22:11:49,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:49,661 INFO L124 PetriNetUnfolderBase]: 1305/6108 cut-off events. [2025-03-08 22:11:49,661 INFO L125 PetriNetUnfolderBase]: For 975/1236 co-relation queries the response was YES. [2025-03-08 22:11:49,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10066 conditions, 6108 events. 1305/6108 cut-off events. For 975/1236 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 63056 event pairs, 532 based on Foata normal form. 65/5601 useless extension candidates. Maximal degree in co-relation 4987. Up to 1228 conditions per place. [2025-03-08 22:11:49,683 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 38 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2025-03-08 22:11:49,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 150 transitions, 508 flow [2025-03-08 22:11:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2025-03-08 22:11:49,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8577235772357723 [2025-03-08 22:11:49,685 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 371 flow. Second operand 6 states and 633 transitions. [2025-03-08 22:11:49,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 150 transitions, 508 flow [2025-03-08 22:11:49,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 150 transitions, 496 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:49,689 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 387 flow [2025-03-08 22:11:49,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2025-03-08 22:11:49,689 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 10 predicate places. [2025-03-08 22:11:49,689 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 387 flow [2025-03-08 22:11:49,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 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) [2025-03-08 22:11:49,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:49,690 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:49,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 22:11:49,690 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:49,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2028082296, now seen corresponding path program 1 times [2025-03-08 22:11:49,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:49,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046625218] [2025-03-08 22:11:49,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:49,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-08 22:11:49,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-08 22:11:49,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:49,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:49,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:49,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:49,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046625218] [2025-03-08 22:11:49,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046625218] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:49,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:49,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:49,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474780145] [2025-03-08 22:11:49,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:49,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:49,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:49,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:49,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:49,728 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 123 [2025-03-08 22:11:49,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2025-03-08 22:11:49,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:49,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 123 [2025-03-08 22:11:49,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:50,080 INFO L124 PetriNetUnfolderBase]: 1088/4747 cut-off events. [2025-03-08 22:11:50,080 INFO L125 PetriNetUnfolderBase]: For 2407/2625 co-relation queries the response was YES. [2025-03-08 22:11:50,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8849 conditions, 4747 events. 1088/4747 cut-off events. For 2407/2625 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49244 event pairs, 589 based on Foata normal form. 7/4393 useless extension candidates. Maximal degree in co-relation 8119. Up to 1450 conditions per place. [2025-03-08 22:11:50,099 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 31 selfloop transitions, 13 changer transitions 0/149 dead transitions. [2025-03-08 22:11:50,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 149 transitions, 548 flow [2025-03-08 22:11:50,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:50,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2025-03-08 22:11:50,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9186991869918699 [2025-03-08 22:11:50,100 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 387 flow. Second operand 3 states and 339 transitions. [2025-03-08 22:11:50,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 149 transitions, 548 flow [2025-03-08 22:11:50,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 149 transitions, 540 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-08 22:11:50,103 INFO L231 Difference]: Finished difference. Result has 137 places, 142 transitions, 497 flow [2025-03-08 22:11:50,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=137, PETRI_TRANSITIONS=142} [2025-03-08 22:11:50,104 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 11 predicate places. [2025-03-08 22:11:50,104 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 142 transitions, 497 flow [2025-03-08 22:11:50,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2025-03-08 22:11:50,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:50,105 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:50,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 22:11:50,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:50,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:50,105 INFO L85 PathProgramCache]: Analyzing trace with hash 453865996, now seen corresponding path program 1 times [2025-03-08 22:11:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:50,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613667630] [2025-03-08 22:11:50,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:50,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:50,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 22:11:50,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 22:11:50,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:50,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:50,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613667630] [2025-03-08 22:11:50,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613667630] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:50,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:50,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:11:50,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844780024] [2025-03-08 22:11:50,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:50,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:50,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:50,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:50,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:50,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2025-03-08 22:11:50,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 142 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2025-03-08 22:11:50,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:50,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2025-03-08 22:11:50,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:50,282 INFO L124 PetriNetUnfolderBase]: 124/1629 cut-off events. [2025-03-08 22:11:50,282 INFO L125 PetriNetUnfolderBase]: For 710/827 co-relation queries the response was YES. [2025-03-08 22:11:50,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2647 conditions, 1629 events. 124/1629 cut-off events. For 710/827 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13383 event pairs, 20 based on Foata normal form. 21/1580 useless extension candidates. Maximal degree in co-relation 1069. Up to 142 conditions per place. [2025-03-08 22:11:50,287 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 12 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2025-03-08 22:11:50,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 137 transitions, 470 flow [2025-03-08 22:11:50,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:50,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2025-03-08 22:11:50,288 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.943089430894309 [2025-03-08 22:11:50,288 INFO L175 Difference]: Start difference. First operand has 137 places, 142 transitions, 497 flow. Second operand 3 states and 348 transitions. [2025-03-08 22:11:50,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 137 transitions, 470 flow [2025-03-08 22:11:50,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 456 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:50,292 INFO L231 Difference]: Finished difference. Result has 137 places, 132 transitions, 401 flow [2025-03-08 22:11:50,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=137, PETRI_TRANSITIONS=132} [2025-03-08 22:11:50,292 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 11 predicate places. [2025-03-08 22:11:50,292 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 132 transitions, 401 flow [2025-03-08 22:11:50,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2025-03-08 22:11:50,292 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:50,293 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:50,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 22:11:50,293 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:50,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2111255046, now seen corresponding path program 1 times [2025-03-08 22:11:50,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:50,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606647415] [2025-03-08 22:11:50,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:50,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:50,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-08 22:11:50,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-08 22:11:50,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:50,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:50,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:50,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606647415] [2025-03-08 22:11:50,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606647415] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:50,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:50,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068829284] [2025-03-08 22:11:50,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:50,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:50,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:50,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:50,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:50,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 123 [2025-03-08 22:11:50,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 132 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2025-03-08 22:11:50,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:50,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 123 [2025-03-08 22:11:50,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:50,463 INFO L124 PetriNetUnfolderBase]: 203/1827 cut-off events. [2025-03-08 22:11:50,463 INFO L125 PetriNetUnfolderBase]: For 1279/1344 co-relation queries the response was YES. [2025-03-08 22:11:50,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3402 conditions, 1827 events. 203/1827 cut-off events. For 1279/1344 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 15973 event pairs, 134 based on Foata normal form. 3/1739 useless extension candidates. Maximal degree in co-relation 2856. Up to 435 conditions per place. [2025-03-08 22:11:50,469 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 25 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2025-03-08 22:11:50,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 137 transitions, 483 flow [2025-03-08 22:11:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2025-03-08 22:11:50,471 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8997289972899729 [2025-03-08 22:11:50,471 INFO L175 Difference]: Start difference. First operand has 137 places, 132 transitions, 401 flow. Second operand 3 states and 332 transitions. [2025-03-08 22:11:50,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 137 transitions, 483 flow [2025-03-08 22:11:50,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 137 transitions, 477 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:11:50,474 INFO L231 Difference]: Finished difference. Result has 140 places, 135 transitions, 435 flow [2025-03-08 22:11:50,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=435, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2025-03-08 22:11:50,474 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2025-03-08 22:11:50,474 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 435 flow [2025-03-08 22:11:50,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2025-03-08 22:11:50,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:50,475 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:50,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 22:11:50,475 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-03-08 22:11:50,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:50,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1914655181, now seen corresponding path program 1 times [2025-03-08 22:11:50,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:50,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348974511] [2025-03-08 22:11:50,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:50,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:50,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-08 22:11:50,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-08 22:11:50,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:50,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:11:50,497 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:11:50,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-08 22:11:50,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-08 22:11:50,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:50,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:11:50,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:11:50,516 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2025-03-08 22:11:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2025-03-08 22:11:50,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 22:11:50,517 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:11:50,518 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:11:50,518 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-08 22:11:50,543 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-08 22:11:50,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 141 transitions, 322 flow [2025-03-08 22:11:50,587 INFO L124 PetriNetUnfolderBase]: 22/541 cut-off events. [2025-03-08 22:11:50,587 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-03-08 22:11:50,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 541 events. 22/541 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1996 event pairs, 6 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 344. Up to 32 conditions per place. [2025-03-08 22:11:50,589 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 141 transitions, 322 flow [2025-03-08 22:11:50,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 141 transitions, 322 flow [2025-03-08 22:11:50,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:11:50,594 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;@2572a22f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:11:50,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-08 22:11:50,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:11:50,596 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2025-03-08 22:11:50,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:11:50,597 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:50,597 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] [2025-03-08 22:11:50,597 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:11:50,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:50,597 INFO L85 PathProgramCache]: Analyzing trace with hash -425758520, now seen corresponding path program 1 times [2025-03-08 22:11:50,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:50,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860628187] [2025-03-08 22:11:50,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:50,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:50,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 22:11:50,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 22:11:50,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:50,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860628187] [2025-03-08 22:11:50,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860628187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:50,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:50,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:50,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579811767] [2025-03-08 22:11:50,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:50,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:50,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:50,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:50,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:50,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 141 [2025-03-08 22:11:50,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2025-03-08 22:11:50,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:50,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 141 [2025-03-08 22:11:50,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:52,536 INFO L124 PetriNetUnfolderBase]: 7859/23223 cut-off events. [2025-03-08 22:11:52,537 INFO L125 PetriNetUnfolderBase]: For 2255/2606 co-relation queries the response was YES. [2025-03-08 22:11:52,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35573 conditions, 23223 events. 7859/23223 cut-off events. For 2255/2606 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 267910 event pairs, 4292 based on Foata normal form. 1/21006 useless extension candidates. Maximal degree in co-relation 28335. Up to 7653 conditions per place. [2025-03-08 22:11:52,677 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 30 selfloop transitions, 6 changer transitions 1/153 dead transitions. [2025-03-08 22:11:52,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 418 flow [2025-03-08 22:11:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:11:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:11:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2025-03-08 22:11:52,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9196217494089834 [2025-03-08 22:11:52,682 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 322 flow. Second operand 3 states and 389 transitions. [2025-03-08 22:11:52,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 418 flow [2025-03-08 22:11:52,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 153 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:11:52,685 INFO L231 Difference]: Finished difference. Result has 149 places, 144 transitions, 364 flow [2025-03-08 22:11:52,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=149, PETRI_TRANSITIONS=144} [2025-03-08 22:11:52,685 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 4 predicate places. [2025-03-08 22:11:52,685 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 144 transitions, 364 flow [2025-03-08 22:11:52,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2025-03-08 22:11:52,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:52,686 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] [2025-03-08 22:11:52,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 22:11:52,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:11:52,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:52,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1337019212, now seen corresponding path program 1 times [2025-03-08 22:11:52,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:52,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021540426] [2025-03-08 22:11:52,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:52,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:52,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:52,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:52,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:52,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:52,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021540426] [2025-03-08 22:11:52,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021540426] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:52,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:52,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:52,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991682029] [2025-03-08 22:11:52,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:52,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:11:52,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:52,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:11:52,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:11:52,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 141 [2025-03-08 22:11:52,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 144 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 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) [2025-03-08 22:11:52,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:52,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 141 [2025-03-08 22:11:52,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:56,041 INFO L124 PetriNetUnfolderBase]: 12655/34914 cut-off events. [2025-03-08 22:11:56,042 INFO L125 PetriNetUnfolderBase]: For 3134/3134 co-relation queries the response was YES. [2025-03-08 22:11:56,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57388 conditions, 34914 events. 12655/34914 cut-off events. For 3134/3134 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 423951 event pairs, 6023 based on Foata normal form. 0/31081 useless extension candidates. Maximal degree in co-relation 34331. Up to 12818 conditions per place. [2025-03-08 22:11:56,316 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 60 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2025-03-08 22:11:56,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 175 transitions, 556 flow [2025-03-08 22:11:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2025-03-08 22:11:56,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8297872340425532 [2025-03-08 22:11:56,319 INFO L175 Difference]: Start difference. First operand has 149 places, 144 transitions, 364 flow. Second operand 6 states and 702 transitions. [2025-03-08 22:11:56,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 175 transitions, 556 flow [2025-03-08 22:11:56,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 175 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:11:56,353 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 360 flow [2025-03-08 22:11:56,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2025-03-08 22:11:56,353 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 5 predicate places. [2025-03-08 22:11:56,354 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 360 flow [2025-03-08 22:11:56,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 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) [2025-03-08 22:11:56,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:56,354 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] [2025-03-08 22:11:56,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 22:11:56,355 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:11:56,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:56,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1176725400, now seen corresponding path program 1 times [2025-03-08 22:11:56,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:56,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433441718] [2025-03-08 22:11:56,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:56,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:56,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:11:56,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:11:56,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:56,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:56,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433441718] [2025-03-08 22:11:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433441718] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:56,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:56,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:11:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383818680] [2025-03-08 22:11:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:56,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:11:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:56,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:11:56,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:11:56,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2025-03-08 22:11:56,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 360 flow. Second operand has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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) [2025-03-08 22:11:56,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:56,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2025-03-08 22:11:56,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:11:59,095 INFO L124 PetriNetUnfolderBase]: 8788/32683 cut-off events. [2025-03-08 22:11:59,096 INFO L125 PetriNetUnfolderBase]: For 1398/1398 co-relation queries the response was YES. [2025-03-08 22:11:59,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47760 conditions, 32683 events. 8788/32683 cut-off events. For 1398/1398 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 418278 event pairs, 5700 based on Foata normal form. 1/28182 useless extension candidates. Maximal degree in co-relation 16955. Up to 9905 conditions per place. [2025-03-08 22:11:59,274 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 28 selfloop transitions, 2 changer transitions 5/151 dead transitions. [2025-03-08 22:11:59,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 151 transitions, 446 flow [2025-03-08 22:11:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:11:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:11:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2025-03-08 22:11:59,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8439716312056738 [2025-03-08 22:11:59,277 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 360 flow. Second operand 6 states and 714 transitions. [2025-03-08 22:11:59,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 151 transitions, 446 flow [2025-03-08 22:11:59,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 151 transitions, 436 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:11:59,280 INFO L231 Difference]: Finished difference. Result has 154 places, 144 transitions, 372 flow [2025-03-08 22:11:59,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=154, PETRI_TRANSITIONS=144} [2025-03-08 22:11:59,280 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 9 predicate places. [2025-03-08 22:11:59,280 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 144 transitions, 372 flow [2025-03-08 22:11:59,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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) [2025-03-08 22:11:59,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:11:59,281 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] [2025-03-08 22:11:59,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-08 22:11:59,281 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:11:59,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:11:59,281 INFO L85 PathProgramCache]: Analyzing trace with hash 437436967, now seen corresponding path program 1 times [2025-03-08 22:11:59,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:11:59,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137084614] [2025-03-08 22:11:59,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:11:59,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:11:59,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 22:11:59,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 22:11:59,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:11:59,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:11:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:11:59,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:11:59,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137084614] [2025-03-08 22:11:59,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137084614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:11:59,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:11:59,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:11:59,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935688003] [2025-03-08 22:11:59,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:11:59,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:11:59,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:11:59,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:11:59,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:11:59,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2025-03-08 22:11:59,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 144 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2025-03-08 22:11:59,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:11:59,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2025-03-08 22:11:59,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:03,040 INFO L124 PetriNetUnfolderBase]: 13629/40864 cut-off events. [2025-03-08 22:12:03,040 INFO L125 PetriNetUnfolderBase]: For 10549/13608 co-relation queries the response was YES. [2025-03-08 22:12:03,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71721 conditions, 40864 events. 13629/40864 cut-off events. For 10549/13608 co-relation queries the response was YES. Maximal size of possible extension queue 1516. Compared 523462 event pairs, 7860 based on Foata normal form. 36/36332 useless extension candidates. Maximal degree in co-relation 71661. Up to 15880 conditions per place. [2025-03-08 22:12:03,314 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 39 selfloop transitions, 11 changer transitions 0/165 dead transitions. [2025-03-08 22:12:03,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 165 transitions, 558 flow [2025-03-08 22:12:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:12:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:12:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2025-03-08 22:12:03,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9196217494089834 [2025-03-08 22:12:03,315 INFO L175 Difference]: Start difference. First operand has 154 places, 144 transitions, 372 flow. Second operand 3 states and 389 transitions. [2025-03-08 22:12:03,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 165 transitions, 558 flow [2025-03-08 22:12:03,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 165 transitions, 546 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-08 22:12:03,426 INFO L231 Difference]: Finished difference. Result has 151 places, 153 transitions, 456 flow [2025-03-08 22:12:03,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=151, PETRI_TRANSITIONS=153} [2025-03-08 22:12:03,427 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 6 predicate places. [2025-03-08 22:12:03,427 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 153 transitions, 456 flow [2025-03-08 22:12:03,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2025-03-08 22:12:03,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:03,427 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] [2025-03-08 22:12:03,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-08 22:12:03,427 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:03,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash 792220599, now seen corresponding path program 1 times [2025-03-08 22:12:03,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:03,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655367536] [2025-03-08 22:12:03,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:03,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:03,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 22:12:03,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 22:12:03,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:03,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:12:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 22:12:03,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:12:03,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655367536] [2025-03-08 22:12:03,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655367536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:12:03,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:12:03,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:12:03,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103019394] [2025-03-08 22:12:03,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:12:03,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:12:03,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:12:03,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:12:03,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:12:03,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 141 [2025-03-08 22:12:03,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 153 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 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) [2025-03-08 22:12:03,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:12:03,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 141 [2025-03-08 22:12:03,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:07,732 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([557] L1023-3-->L1023-1: Formula: (= |v_#race~data~0_6| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_6|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][150], [170#true, 20#L1038-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 109#L1024-3true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 94#L1022true, 140#true, Black: 150#(= |#race~data~0| 0), 175#true, 46#L1023-1true, 144#true, 142#true]) [2025-03-08 22:12:07,732 INFO L294 olderBase$Statistics]: this new event has 148 ancestors and is cut-off event [2025-03-08 22:12:07,732 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2025-03-08 22:12:07,732 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2025-03-08 22:12:07,733 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2025-03-08 22:12:07,830 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([605] L1023-3-->L1023-1: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][182], [170#true, 20#L1038-2true, 59#L1023-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 77#L1023-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 46#L1023-1true, 144#true]) [2025-03-08 22:12:07,831 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2025-03-08 22:12:07,831 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:07,831 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:07,831 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:07,881 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([557] L1023-3-->L1023-1: Formula: (= |v_#race~data~0_6| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_6|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][150], [170#true, 20#L1038-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 70#L1023-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 140#true, 175#true, Black: 150#(= |#race~data~0| 0), 21#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 46#L1023-1true, 144#true, 142#true]) [2025-03-08 22:12:07,881 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2025-03-08 22:12:07,881 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:07,881 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2025-03-08 22:12:07,881 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2025-03-08 22:12:08,242 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([605] L1023-3-->L1023-1: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][177], [170#true, 20#L1038-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 77#L1023-1true, 109#L1024-3true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 141#true, Black: 150#(= |#race~data~0| 0), 175#true, 46#L1023-1true, 144#true]) [2025-03-08 22:12:08,242 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is not cut-off event [2025-03-08 22:12:08,242 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2025-03-08 22:12:08,242 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2025-03-08 22:12:08,242 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2025-03-08 22:12:08,745 INFO L124 PetriNetUnfolderBase]: 19867/57038 cut-off events. [2025-03-08 22:12:08,745 INFO L125 PetriNetUnfolderBase]: For 9377/13245 co-relation queries the response was YES. [2025-03-08 22:12:08,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99827 conditions, 57038 events. 19867/57038 cut-off events. For 9377/13245 co-relation queries the response was YES. Maximal size of possible extension queue 1937. Compared 746532 event pairs, 9570 based on Foata normal form. 80/49858 useless extension candidates. Maximal degree in co-relation 79001. Up to 12590 conditions per place. [2025-03-08 22:12:09,124 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 58 selfloop transitions, 5 changer transitions 0/184 dead transitions. [2025-03-08 22:12:09,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 184 transitions, 644 flow [2025-03-08 22:12:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:12:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:12:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 712 transitions. [2025-03-08 22:12:09,125 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8416075650118203 [2025-03-08 22:12:09,125 INFO L175 Difference]: Start difference. First operand has 151 places, 153 transitions, 456 flow. Second operand 6 states and 712 transitions. [2025-03-08 22:12:09,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 184 transitions, 644 flow [2025-03-08 22:12:09,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 184 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:12:09,190 INFO L231 Difference]: Finished difference. Result has 153 places, 152 transitions, 442 flow [2025-03-08 22:12:09,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=153, PETRI_TRANSITIONS=152} [2025-03-08 22:12:09,191 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 8 predicate places. [2025-03-08 22:12:09,191 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 152 transitions, 442 flow [2025-03-08 22:12:09,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 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) [2025-03-08 22:12:09,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:09,191 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:09,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-08 22:12:09,191 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:09,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1195199653, now seen corresponding path program 1 times [2025-03-08 22:12:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:09,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79422833] [2025-03-08 22:12:09,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:09,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:09,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-08 22:12:09,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-08 22:12:09,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:09,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:12:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 22:12:09,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:12:09,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79422833] [2025-03-08 22:12:09,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79422833] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:12:09,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:12:09,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:12:09,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54030865] [2025-03-08 22:12:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:12:09,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:12:09,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:12:09,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:12:09,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:12:09,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 141 [2025-03-08 22:12:09,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 152 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2025-03-08 22:12:09,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:12:09,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 141 [2025-03-08 22:12:09,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:11,764 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([605] L1023-3-->L1023-1: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][173], [20#L1038-2true, 59#L1023-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 77#L1023-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 46#L1023-1true, 144#true]) [2025-03-08 22:12:11,764 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2025-03-08 22:12:11,764 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:11,764 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:11,764 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2025-03-08 22:12:12,126 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([605] L1023-3-->L1023-1: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_6|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][172], [20#L1038-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 77#L1023-1true, 109#L1024-3true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 46#L1023-1true, 144#true]) [2025-03-08 22:12:12,126 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is not cut-off event [2025-03-08 22:12:12,126 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2025-03-08 22:12:12,126 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2025-03-08 22:12:12,126 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2025-03-08 22:12:12,556 INFO L124 PetriNetUnfolderBase]: 10063/35805 cut-off events. [2025-03-08 22:12:12,556 INFO L125 PetriNetUnfolderBase]: For 6134/8108 co-relation queries the response was YES. [2025-03-08 22:12:12,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60768 conditions, 35805 events. 10063/35805 cut-off events. For 6134/8108 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 466290 event pairs, 5238 based on Foata normal form. 284/31943 useless extension candidates. Maximal degree in co-relation 31242. Up to 7614 conditions per place. [2025-03-08 22:12:12,753 INFO L140 encePairwiseOnDemand]: 134/141 looper letters, 47 selfloop transitions, 6 changer transitions 0/176 dead transitions. [2025-03-08 22:12:12,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 176 transitions, 610 flow [2025-03-08 22:12:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:12:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:12:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2025-03-08 22:12:12,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8581560283687943 [2025-03-08 22:12:12,754 INFO L175 Difference]: Start difference. First operand has 153 places, 152 transitions, 442 flow. Second operand 6 states and 726 transitions. [2025-03-08 22:12:12,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 176 transitions, 610 flow [2025-03-08 22:12:12,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 176 transitions, 598 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:12:12,768 INFO L231 Difference]: Finished difference. Result has 155 places, 154 transitions, 458 flow [2025-03-08 22:12:12,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=458, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2025-03-08 22:12:12,768 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2025-03-08 22:12:12,768 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 458 flow [2025-03-08 22:12:12,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2025-03-08 22:12:12,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:12,769 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:12,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-08 22:12:12,769 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:12,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1210073931, now seen corresponding path program 1 times [2025-03-08 22:12:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:12,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001708101] [2025-03-08 22:12:12,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:12,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:12,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-08 22:12:12,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-08 22:12:12,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:12,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:12:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 22:12:12,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:12:12,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001708101] [2025-03-08 22:12:12,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001708101] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:12:12,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:12:12,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:12:12,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714928891] [2025-03-08 22:12:12,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:12:12,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:12:12,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:12:12,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:12:12,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:12:12,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2025-03-08 22:12:12,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2025-03-08 22:12:12,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:12:12,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2025-03-08 22:12:12,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:16,121 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([513] L1037-->L1038-1: Formula: (= |v_#race~data~0_3| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_3|} AuxVars[] AssignedVars[#race~data~0][156], [120#L1038-1true, 189#true, 59#L1023-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 119#L1024-3true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 143#true, Black: 148#true, Black: 183#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 186#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~threads_total~0#1|)), 142#true]) [2025-03-08 22:12:16,122 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2025-03-08 22:12:16,122 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2025-03-08 22:12:16,122 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2025-03-08 22:12:16,122 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2025-03-08 22:12:16,132 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([513] L1037-->L1038-1: Formula: (= |v_#race~data~0_3| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_3|} AuxVars[] AssignedVars[#race~data~0][156], [120#L1038-1true, 189#true, 37#L1024true, 59#L1023-2true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 143#true, Black: 148#true, Black: 183#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 186#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~threads_total~0#1|)), 142#true]) [2025-03-08 22:12:16,132 INFO L294 olderBase$Statistics]: this new event has 172 ancestors and is cut-off event [2025-03-08 22:12:16,132 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2025-03-08 22:12:16,132 INFO L297 olderBase$Statistics]: existing Event has 172 ancestors and is cut-off event [2025-03-08 22:12:16,133 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2025-03-08 22:12:16,399 INFO L124 PetriNetUnfolderBase]: 11773/38290 cut-off events. [2025-03-08 22:12:16,399 INFO L125 PetriNetUnfolderBase]: For 22142/23923 co-relation queries the response was YES. [2025-03-08 22:12:16,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74357 conditions, 38290 events. 11773/38290 cut-off events. For 22142/23923 co-relation queries the response was YES. Maximal size of possible extension queue 1515. Compared 513392 event pairs, 6499 based on Foata normal form. 24/34724 useless extension candidates. Maximal degree in co-relation 67309. Up to 13617 conditions per place. [2025-03-08 22:12:16,628 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 43 selfloop transitions, 18 changer transitions 0/179 dead transitions. [2025-03-08 22:12:16,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 179 transitions, 703 flow [2025-03-08 22:12:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:12:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:12:16,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2025-03-08 22:12:16,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91725768321513 [2025-03-08 22:12:16,629 INFO L175 Difference]: Start difference. First operand has 155 places, 154 transitions, 458 flow. Second operand 3 states and 388 transitions. [2025-03-08 22:12:16,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 179 transitions, 703 flow [2025-03-08 22:12:16,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 179 transitions, 695 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-08 22:12:16,639 INFO L231 Difference]: Finished difference. Result has 156 places, 168 transitions, 628 flow [2025-03-08 22:12:16,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=156, PETRI_TRANSITIONS=168} [2025-03-08 22:12:16,640 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 11 predicate places. [2025-03-08 22:12:16,640 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 168 transitions, 628 flow [2025-03-08 22:12:16,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2025-03-08 22:12:16,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:16,640 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:16,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-08 22:12:16,640 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:16,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:16,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1573037143, now seen corresponding path program 1 times [2025-03-08 22:12:16,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:16,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789161948] [2025-03-08 22:12:16,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:16,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 22:12:16,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 22:12:16,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:16,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:12:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 22:12:16,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:12:16,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789161948] [2025-03-08 22:12:16,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789161948] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:12:16,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:12:16,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:12:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212973100] [2025-03-08 22:12:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:12:16,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:12:16,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:12:16,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:12:16,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:12:16,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 141 [2025-03-08 22:12:16,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 168 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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) [2025-03-08 22:12:16,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:12:16,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 141 [2025-03-08 22:12:16,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:17,141 INFO L124 PetriNetUnfolderBase]: 660/6291 cut-off events. [2025-03-08 22:12:17,141 INFO L125 PetriNetUnfolderBase]: For 3341/3863 co-relation queries the response was YES. [2025-03-08 22:12:17,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10688 conditions, 6291 events. 660/6291 cut-off events. For 3341/3863 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 72150 event pairs, 237 based on Foata normal form. 177/6091 useless extension candidates. Maximal degree in co-relation 8380. Up to 678 conditions per place. [2025-03-08 22:12:17,170 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 16 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2025-03-08 22:12:17,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 158 transitions, 561 flow [2025-03-08 22:12:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:12:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:12:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2025-03-08 22:12:17,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9385342789598109 [2025-03-08 22:12:17,171 INFO L175 Difference]: Start difference. First operand has 156 places, 168 transitions, 628 flow. Second operand 3 states and 397 transitions. [2025-03-08 22:12:17,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 158 transitions, 561 flow [2025-03-08 22:12:17,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 158 transitions, 547 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-08 22:12:17,177 INFO L231 Difference]: Finished difference. Result has 156 places, 151 transitions, 468 flow [2025-03-08 22:12:17,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=156, PETRI_TRANSITIONS=151} [2025-03-08 22:12:17,178 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 11 predicate places. [2025-03-08 22:12:17,178 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 151 transitions, 468 flow [2025-03-08 22:12:17,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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) [2025-03-08 22:12:17,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:17,178 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:17,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-08 22:12:17,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:17,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1914291958, now seen corresponding path program 1 times [2025-03-08 22:12:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:17,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181995795] [2025-03-08 22:12:17,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:17,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-08 22:12:17,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-08 22:12:17,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:17,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:12:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 22:12:17,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:12:17,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181995795] [2025-03-08 22:12:17,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181995795] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:12:17,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:12:17,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:12:17,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908179398] [2025-03-08 22:12:17,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:12:17,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:12:17,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:12:17,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:12:17,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:12:17,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2025-03-08 22:12:17,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 151 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2025-03-08 22:12:17,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:12:17,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2025-03-08 22:12:17,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:17,891 INFO L124 PetriNetUnfolderBase]: 1120/7887 cut-off events. [2025-03-08 22:12:17,891 INFO L125 PetriNetUnfolderBase]: For 6402/6521 co-relation queries the response was YES. [2025-03-08 22:12:17,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15139 conditions, 7887 events. 1120/7887 cut-off events. For 6402/6521 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 94546 event pairs, 661 based on Foata normal form. 4/7384 useless extension candidates. Maximal degree in co-relation 11930. Up to 2068 conditions per place. [2025-03-08 22:12:17,923 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 33 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2025-03-08 22:12:17,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 158 transitions, 582 flow [2025-03-08 22:12:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:12:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:12:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2025-03-08 22:12:17,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8936170212765957 [2025-03-08 22:12:17,924 INFO L175 Difference]: Start difference. First operand has 156 places, 151 transitions, 468 flow. Second operand 3 states and 378 transitions. [2025-03-08 22:12:17,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 158 transitions, 582 flow [2025-03-08 22:12:17,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 158 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:12:17,928 INFO L231 Difference]: Finished difference. Result has 159 places, 154 transitions, 500 flow [2025-03-08 22:12:17,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=159, PETRI_TRANSITIONS=154} [2025-03-08 22:12:17,929 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2025-03-08 22:12:17,929 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 154 transitions, 500 flow [2025-03-08 22:12:17,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2025-03-08 22:12:17,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:17,929 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:17,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-08 22:12:17,929 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:17,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1901532164, now seen corresponding path program 1 times [2025-03-08 22:12:17,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:17,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921445882] [2025-03-08 22:12:17,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:17,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:17,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-08 22:12:17,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-08 22:12:17,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:17,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:12:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:12:17,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:12:17,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921445882] [2025-03-08 22:12:17,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921445882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:12:17,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:12:17,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:12:17,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103876480] [2025-03-08 22:12:17,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:12:17,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:12:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:12:17,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:12:17,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:12:17,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2025-03-08 22:12:17,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 154 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2025-03-08 22:12:17,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:12:17,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2025-03-08 22:12:17,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:12:18,590 INFO L124 PetriNetUnfolderBase]: 1121/7928 cut-off events. [2025-03-08 22:12:18,590 INFO L125 PetriNetUnfolderBase]: For 8520/8672 co-relation queries the response was YES. [2025-03-08 22:12:18,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15851 conditions, 7928 events. 1121/7928 cut-off events. For 8520/8672 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 95331 event pairs, 707 based on Foata normal form. 4/7482 useless extension candidates. Maximal degree in co-relation 12732. Up to 2095 conditions per place. [2025-03-08 22:12:18,629 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 33 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2025-03-08 22:12:18,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 160 transitions, 605 flow [2025-03-08 22:12:18,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:12:18,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:12:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2025-03-08 22:12:18,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8912529550827423 [2025-03-08 22:12:18,630 INFO L175 Difference]: Start difference. First operand has 159 places, 154 transitions, 500 flow. Second operand 3 states and 377 transitions. [2025-03-08 22:12:18,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 160 transitions, 605 flow [2025-03-08 22:12:18,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 160 transitions, 591 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-08 22:12:18,636 INFO L231 Difference]: Finished difference. Result has 161 places, 157 transitions, 528 flow [2025-03-08 22:12:18,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=161, PETRI_TRANSITIONS=157} [2025-03-08 22:12:18,636 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 16 predicate places. [2025-03-08 22:12:18,636 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 157 transitions, 528 flow [2025-03-08 22:12:18,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2025-03-08 22:12:18,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:12:18,637 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:18,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-08 22:12:18,637 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 22:12:18,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:12:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash -813421489, now seen corresponding path program 1 times [2025-03-08 22:12:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:12:18,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568660017] [2025-03-08 22:12:18,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:12:18,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:12:18,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 22:12:18,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 22:12:18,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:18,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:12:18,664 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:12:18,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 22:12:18,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 22:12:18,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:12:18,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:12:18,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:12:18,692 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:12:18,692 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-08 22:12:18,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-08 22:12:18,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-08 22:12:18,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-03-08 22:12:18,693 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:12:18,750 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2025-03-08 22:12:18,752 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 22:12:18,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 10:12:18 BasicIcfg [2025-03-08 22:12:18,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 22:12:18,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 22:12:18,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 22:12:18,759 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 22:12:18,760 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:11:41" (3/4) ... [2025-03-08 22:12:18,761 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-08 22:12:18,817 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 9. [2025-03-08 22:12:18,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 22:12:18,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 22:12:18,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 22:12:18,856 INFO L158 Benchmark]: Toolchain (without parser) took 38211.72ms. Allocated memory was 142.6MB in the beginning and 9.8GB in the end (delta: 9.7GB). Free memory was 110.3MB in the beginning and 6.5GB in the end (delta: -6.4GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2025-03-08 22:12:18,856 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 226.5MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:12:18,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.83ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 82.7MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:12:18,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.67ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:12:18,857 INFO L158 Benchmark]: Boogie Preprocessor took 29.53ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 79.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:12:18,857 INFO L158 Benchmark]: IcfgBuilder took 348.63ms. Allocated memory is still 142.6MB. Free memory was 79.0MB in the beginning and 63.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:12:18,857 INFO L158 Benchmark]: TraceAbstraction took 37318.48ms. Allocated memory was 142.6MB in the beginning and 9.8GB in the end (delta: 9.7GB). Free memory was 62.8MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2025-03-08 22:12:18,857 INFO L158 Benchmark]: Witness Printer took 96.62ms. Allocated memory is still 9.8GB. Free memory was 6.6GB in the beginning and 6.5GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 22:12:18,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 226.5MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.83ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 82.7MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.67ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.53ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 79.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 348.63ms. Allocated memory is still 142.6MB. Free memory was 79.0MB in the beginning and 63.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 37318.48ms. Allocated memory was 142.6MB in the beginning and 9.8GB in the end (delta: 9.7GB). Free memory was 62.8MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * Witness Printer took 96.62ms. Allocated memory is still 9.8GB. Free memory was 6.6GB in the beginning and 6.5GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1023]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 int data = 0; VAL [data=0] [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L1028] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_total=2] [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}] [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, data_mutex={1:0}, threads_total=2, tids={-2:0}] [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1031] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}] [L1034] 0 int i = 0; VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1025] 1 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1034] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1035] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1034] 0 i += 2 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1034] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1023] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1038] 0 return data; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=2, tids={-2:0}] [L1023] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [1038] and C: data = __VERIFIER_nondet_int() [1023] - UnprovableResult [Line: 1038]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 105 edges, 6 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: 2.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 233 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 5 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=4, InterpolantAutomatonStates: 24, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 120 locations, 123 edges, 7 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: 2.0s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 299 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 677 IncrementalHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 35 mSDtfsCounter, 677 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=7, InterpolantAutomatonStates: 33, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 398 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 670 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 4/4 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 137 locations, 141 edges, 8 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 568 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 941 IncrementalHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 55 mSDtfsCounter, 941 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=497occurred in iteration=7, InterpolantAutomatonStates: 39, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 863 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 154 locations, 159 edges, 9 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: 28.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 708 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 449 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1056 IncrementalHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 86 mSDtfsCounter, 1056 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=7, InterpolantAutomatonStates: 42, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 676 NumberOfCodeBlocks, 676 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 565 ConstructedInterpolants, 0 QuantifiedInterpolants, 961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 13/13 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 RESULT: Ultimate proved your program to be incorrect! [2025-03-08 22:12:18,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)