./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:20:30,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:20:30,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:20:30,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:20:30,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:20:30,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:20:30,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:20:30,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:20:30,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:20:30,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:20:30,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:20:30,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:20:30,437 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:20:30,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:20:30,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:20:30,437 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:20:30,438 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:20:30,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:20:30,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:20:30,445 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:20:30,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:20:30,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:20:30,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:20:30,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:20:30,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:20:30,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:20:30,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:20:30,446 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e [2025-02-06 09:20:30,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:20:30,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:20:30,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:20:30,648 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:20:30,648 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:20:30,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2025-02-06 09:20:31,731 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9fde7923/79d1308942d447e19240c0149b76b020/FLAGb39662a41 [2025-02-06 09:20:31,983 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:20:31,984 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2025-02-06 09:20:31,994 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9fde7923/79d1308942d447e19240c0149b76b020/FLAGb39662a41 [2025-02-06 09:20:32,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9fde7923/79d1308942d447e19240c0149b76b020 [2025-02-06 09:20:32,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:20:32,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:20:32,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:20:32,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:20:32,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:20:32,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cc4922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32, skipping insertion in model container [2025-02-06 09:20:32,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,034 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:20:32,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:20:32,267 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:20:32,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:20:32,344 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:20:32,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32 WrapperNode [2025-02-06 09:20:32,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:20:32,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:20:32,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:20:32,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:20:32,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,378 INFO L138 Inliner]: procedures = 162, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2025-02-06 09:20:32,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:20:32,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:20:32,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:20:32,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:20:32,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,390 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:20:32,399 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:20:32,399 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:20:32,399 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:20:32,400 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (1/1) ... [2025-02-06 09:20:32,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:20:32,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:32,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:20:32,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:20:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:20:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:20:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:20:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:20:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:20:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:20:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:20:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:20:32,449 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:20:32,534 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:20:32,535 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:20:32,695 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:20:32,696 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:20:32,717 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:20:32,717 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:20:32,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:20:32 BoogieIcfgContainer [2025-02-06 09:20:32,718 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:20:32,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:20:32,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:20:32,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:20:32,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:20:32" (1/3) ... [2025-02-06 09:20:32,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37043b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:20:32, skipping insertion in model container [2025-02-06 09:20:32,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:20:32" (2/3) ... [2025-02-06 09:20:32,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37043b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:20:32, skipping insertion in model container [2025-02-06 09:20:32,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:20:32" (3/3) ... [2025-02-06 09:20:32,724 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2025-02-06 09:20:32,735 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:20:32,736 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_01-idx_rc.i that has 2 procedures, 110 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-02-06 09:20:32,736 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:20:32,772 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:20:32,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 110 transitions, 224 flow [2025-02-06 09:20:32,844 INFO L124 PetriNetUnfolderBase]: 1/109 cut-off events. [2025-02-06 09:20:32,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:20:32,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 109 events. 1/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2025-02-06 09:20:32,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 110 transitions, 224 flow [2025-02-06 09:20:32,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 109 transitions, 221 flow [2025-02-06 09:20:32,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:20:32,862 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;@77f5505a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:20:32,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 09:20:32,884 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:20:32,884 INFO L124 PetriNetUnfolderBase]: 1/79 cut-off events. [2025-02-06 09:20:32,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:20:32,884 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:32,885 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:32,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:32,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1450300205, now seen corresponding path program 1 times [2025-02-06 09:20:32,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:32,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167767687] [2025-02-06 09:20:32,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:32,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:32,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:20:32,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:20:32,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:32,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:33,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:33,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167767687] [2025-02-06 09:20:33,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167767687] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:33,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:20:33,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:20:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414309790] [2025-02-06 09:20:33,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:33,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:20:33,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:33,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:20:33,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:20:33,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 110 [2025-02-06 09:20:33,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:33,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:33,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 110 [2025-02-06 09:20:33,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:33,214 INFO L124 PetriNetUnfolderBase]: 7/170 cut-off events. [2025-02-06 09:20:33,214 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:20:33,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 170 events. 7/170 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 6 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 113. Up to 24 conditions per place. [2025-02-06 09:20:33,218 INFO L140 encePairwiseOnDemand]: 107/110 looper letters, 10 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2025-02-06 09:20:33,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 247 flow [2025-02-06 09:20:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:20:33,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:20:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2025-02-06 09:20:33,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2025-02-06 09:20:33,232 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 221 flow. Second operand 3 states and 310 transitions. [2025-02-06 09:20:33,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 247 flow [2025-02-06 09:20:33,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:20:33,256 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 232 flow [2025-02-06 09:20:33,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2025-02-06 09:20:33,261 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 2 predicate places. [2025-02-06 09:20:33,263 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 232 flow [2025-02-06 09:20:33,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:33,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:33,263 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:33,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:20:33,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:33,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash -397719070, now seen corresponding path program 1 times [2025-02-06 09:20:33,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:33,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799682061] [2025-02-06 09:20:33,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:33,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:33,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 09:20:33,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 09:20:33,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:33,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:33,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:33,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799682061] [2025-02-06 09:20:33,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799682061] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:33,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661792216] [2025-02-06 09:20:33,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:33,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:33,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:33,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:33,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:20:33,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 09:20:33,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 09:20:33,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:33,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:33,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:20:33,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:20:33,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:20:33,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661792216] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:33,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 09:20:33,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-02-06 09:20:33,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415620889] [2025-02-06 09:20:33,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:33,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:20:33,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:33,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:20:33,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:33,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 110 [2025-02-06 09:20:33,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:33,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:33,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 110 [2025-02-06 09:20:33,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:33,630 INFO L124 PetriNetUnfolderBase]: 32/259 cut-off events. [2025-02-06 09:20:33,631 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:20:33,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 259 events. 32/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 888 event pairs, 13 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 280. Up to 44 conditions per place. [2025-02-06 09:20:33,633 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 17 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2025-02-06 09:20:33,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 120 transitions, 298 flow [2025-02-06 09:20:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:20:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:20:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2025-02-06 09:20:33,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9575757575757575 [2025-02-06 09:20:33,635 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 232 flow. Second operand 3 states and 316 transitions. [2025-02-06 09:20:33,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 120 transitions, 298 flow [2025-02-06 09:20:33,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 120 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:20:33,637 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 282 flow [2025-02-06 09:20:33,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2025-02-06 09:20:33,638 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 5 predicate places. [2025-02-06 09:20:33,638 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 282 flow [2025-02-06 09:20:33,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:33,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:33,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:33,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:20:33,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:33,844 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:33,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1375564877, now seen corresponding path program 1 times [2025-02-06 09:20:33,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:33,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925983788] [2025-02-06 09:20:33,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:33,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:20:33,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:20:33,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:33,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:33,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:33,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:33,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925983788] [2025-02-06 09:20:33,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925983788] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:33,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792819631] [2025-02-06 09:20:33,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:33,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:33,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:33,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:33,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:20:33,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:20:33,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:20:33,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:33,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:33,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:20:33,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:20:34,029 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:20:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792819631] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:34,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 09:20:34,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-02-06 09:20:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270096331] [2025-02-06 09:20:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:34,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:20:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:34,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:20:34,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:34,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 110 [2025-02-06 09:20:34,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:34,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:34,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 110 [2025-02-06 09:20:34,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:34,109 INFO L124 PetriNetUnfolderBase]: 47/319 cut-off events. [2025-02-06 09:20:34,110 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2025-02-06 09:20:34,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 319 events. 47/319 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1324 event pairs, 21 based on Foata normal form. 3/304 useless extension candidates. Maximal degree in co-relation 451. Up to 86 conditions per place. [2025-02-06 09:20:34,112 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 16 selfloop transitions, 7 changer transitions 1/123 dead transitions. [2025-02-06 09:20:34,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 123 transitions, 354 flow [2025-02-06 09:20:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:20:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:20:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2025-02-06 09:20:34,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9424242424242424 [2025-02-06 09:20:34,114 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 282 flow. Second operand 3 states and 311 transitions. [2025-02-06 09:20:34,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 123 transitions, 354 flow [2025-02-06 09:20:34,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 123 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:20:34,116 INFO L231 Difference]: Finished difference. Result has 119 places, 121 transitions, 326 flow [2025-02-06 09:20:34,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=119, PETRI_TRANSITIONS=121} [2025-02-06 09:20:34,117 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2025-02-06 09:20:34,117 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 121 transitions, 326 flow [2025-02-06 09:20:34,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:34,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:34,117 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:34,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 09:20:34,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:34,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:34,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash 240725878, now seen corresponding path program 1 times [2025-02-06 09:20:34,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:34,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340671293] [2025-02-06 09:20:34,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:34,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:34,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 09:20:34,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 09:20:34,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:34,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:34,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:34,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340671293] [2025-02-06 09:20:34,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340671293] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:34,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744625833] [2025-02-06 09:20:34,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:34,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:34,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:34,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:34,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:20:34,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 09:20:34,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 09:20:34,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:34,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:34,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:20:34,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:20:34,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:20:34,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744625833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:20:34,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 09:20:34,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-02-06 09:20:34,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392547580] [2025-02-06 09:20:34,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:20:34,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:20:34,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:34,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:20:34,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:20:34,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 110 [2025-02-06 09:20:34,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 121 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:34,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:34,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 110 [2025-02-06 09:20:34,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:34,548 INFO L124 PetriNetUnfolderBase]: 66/386 cut-off events. [2025-02-06 09:20:34,548 INFO L125 PetriNetUnfolderBase]: For 214/222 co-relation queries the response was YES. [2025-02-06 09:20:34,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 386 events. 66/386 cut-off events. For 214/222 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1758 event pairs, 25 based on Foata normal form. 2/371 useless extension candidates. Maximal degree in co-relation 650. Up to 115 conditions per place. [2025-02-06 09:20:34,551 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 17 selfloop transitions, 7 changer transitions 7/128 dead transitions. [2025-02-06 09:20:34,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 128 transitions, 412 flow [2025-02-06 09:20:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:20:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:20:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2025-02-06 09:20:34,552 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9303030303030303 [2025-02-06 09:20:34,553 INFO L175 Difference]: Start difference. First operand has 119 places, 121 transitions, 326 flow. Second operand 3 states and 307 transitions. [2025-02-06 09:20:34,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 128 transitions, 412 flow [2025-02-06 09:20:34,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:20:34,556 INFO L231 Difference]: Finished difference. Result has 121 places, 120 transitions, 344 flow [2025-02-06 09:20:34,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=121, PETRI_TRANSITIONS=120} [2025-02-06 09:20:34,557 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 9 predicate places. [2025-02-06 09:20:34,558 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 120 transitions, 344 flow [2025-02-06 09:20:34,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:34,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:34,558 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:34,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:20:34,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:34,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:34,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash -526456405, now seen corresponding path program 1 times [2025-02-06 09:20:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:34,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627756460] [2025-02-06 09:20:34,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:34,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:34,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-06 09:20:34,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-06 09:20:34,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:34,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:34,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:34,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627756460] [2025-02-06 09:20:34,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627756460] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:34,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544899301] [2025-02-06 09:20:34,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:20:34,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:34,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:34,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:34,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:20:34,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-06 09:20:34,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-06 09:20:34,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:34,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:34,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:20:34,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:34,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:20:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544899301] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:20:34,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:20:34,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 09:20:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525121569] [2025-02-06 09:20:34,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:20:34,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:20:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:34,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:20:34,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:20:35,015 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 110 [2025-02-06 09:20:35,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 120 transitions, 344 flow. Second operand has 10 states, 10 states have (on average 98.1) internal successors, (981), 10 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:35,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:35,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 110 [2025-02-06 09:20:35,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:35,097 INFO L124 PetriNetUnfolderBase]: 25/318 cut-off events. [2025-02-06 09:20:35,097 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2025-02-06 09:20:35,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 318 events. 25/318 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1301 event pairs, 10 based on Foata normal form. 2/309 useless extension candidates. Maximal degree in co-relation 461. Up to 37 conditions per place. [2025-02-06 09:20:35,098 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 14 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2025-02-06 09:20:35,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 408 flow [2025-02-06 09:20:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 09:20:35,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 09:20:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 889 transitions. [2025-02-06 09:20:35,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.897979797979798 [2025-02-06 09:20:35,100 INFO L175 Difference]: Start difference. First operand has 121 places, 120 transitions, 344 flow. Second operand 9 states and 889 transitions. [2025-02-06 09:20:35,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 128 transitions, 408 flow [2025-02-06 09:20:35,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:20:35,103 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 380 flow [2025-02-06 09:20:35,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2025-02-06 09:20:35,104 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 18 predicate places. [2025-02-06 09:20:35,104 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 380 flow [2025-02-06 09:20:35,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.1) internal successors, (981), 10 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:35,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:35,106 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:35,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:20:35,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:35,307 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:35,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:35,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2084017247, now seen corresponding path program 2 times [2025-02-06 09:20:35,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:35,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863306403] [2025-02-06 09:20:35,307 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:20:35,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:35,316 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-02-06 09:20:35,323 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:20:35,325 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:20:35,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:35,451 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:35,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:35,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863306403] [2025-02-06 09:20:35,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863306403] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:35,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766128989] [2025-02-06 09:20:35,451 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:20:35,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:35,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:35,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:35,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:20:35,487 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-02-06 09:20:35,506 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-02-06 09:20:35,506 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:20:35,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:35,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:20:35,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:35,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:20:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:35,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766128989] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:20:35,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:20:35,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 09:20:35,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071416216] [2025-02-06 09:20:35,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:20:35,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:20:35,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:35,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:20:35,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:20:35,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 110 [2025-02-06 09:20:35,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 98.05555555555556) internal successors, (1765), 18 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:35,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:35,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 110 [2025-02-06 09:20:35,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:35,872 INFO L124 PetriNetUnfolderBase]: 25/338 cut-off events. [2025-02-06 09:20:35,872 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2025-02-06 09:20:35,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 338 events. 25/338 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1298 event pairs, 10 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 442. Up to 37 conditions per place. [2025-02-06 09:20:35,873 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 18 selfloop transitions, 21 changer transitions 0/144 dead transitions. [2025-02-06 09:20:35,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 554 flow [2025-02-06 09:20:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 09:20:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 09:20:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2059 transitions. [2025-02-06 09:20:35,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8913419913419913 [2025-02-06 09:20:35,876 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 380 flow. Second operand 21 states and 2059 transitions. [2025-02-06 09:20:35,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 554 flow [2025-02-06 09:20:35,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 144 transitions, 540 flow, removed 6 selfloop flow, removed 1 redundant places. [2025-02-06 09:20:35,879 INFO L231 Difference]: Finished difference. Result has 154 places, 139 transitions, 504 flow [2025-02-06 09:20:35,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=504, PETRI_PLACES=154, PETRI_TRANSITIONS=139} [2025-02-06 09:20:35,880 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 42 predicate places. [2025-02-06 09:20:35,880 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 139 transitions, 504 flow [2025-02-06 09:20:35,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 98.05555555555556) internal successors, (1765), 18 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:35,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:35,881 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:35,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 09:20:36,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:36,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:36,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:36,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1618166901, now seen corresponding path program 3 times [2025-02-06 09:20:36,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:36,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740658362] [2025-02-06 09:20:36,083 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:20:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:36,098 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 115 statements into 8 equivalence classes. [2025-02-06 09:20:36,126 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 09:20:36,127 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-02-06 09:20:36,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:36,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:20:36,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740658362] [2025-02-06 09:20:36,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740658362] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:20:36,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466368263] [2025-02-06 09:20:36,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:20:36,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:20:36,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:20:36,424 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:20:36,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:20:36,461 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 115 statements into 8 equivalence classes. [2025-02-06 09:20:36,493 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 09:20:36,494 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-02-06 09:20:36,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:20:36,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 09:20:36,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:20:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:36,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:20:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:20:36,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466368263] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:20:36,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:20:36,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-06 09:20:36,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631312714] [2025-02-06 09:20:36,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:20:36,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:20:36,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:20:36,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:20:36,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:20:36,752 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 110 [2025-02-06 09:20:36,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 139 transitions, 504 flow. Second operand has 23 states, 23 states have (on average 98.1304347826087) internal successors, (2257), 23 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:36,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:20:36,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 110 [2025-02-06 09:20:36,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:20:37,028 INFO L124 PetriNetUnfolderBase]: 25/353 cut-off events. [2025-02-06 09:20:37,029 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2025-02-06 09:20:37,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 353 events. 25/353 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1298 event pairs, 10 based on Foata normal form. 3/345 useless extension candidates. Maximal degree in co-relation 446. Up to 37 conditions per place. [2025-02-06 09:20:37,030 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 21 selfloop transitions, 30 changer transitions 0/156 dead transitions. [2025-02-06 09:20:37,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 156 transitions, 734 flow [2025-02-06 09:20:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:20:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 09:20:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2934 transitions. [2025-02-06 09:20:37,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.889090909090909 [2025-02-06 09:20:37,034 INFO L175 Difference]: Start difference. First operand has 154 places, 139 transitions, 504 flow. Second operand 30 states and 2934 transitions. [2025-02-06 09:20:37,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 156 transitions, 734 flow [2025-02-06 09:20:37,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 156 transitions, 704 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 09:20:37,037 INFO L231 Difference]: Finished difference. Result has 181 places, 149 transitions, 632 flow [2025-02-06 09:20:37,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=632, PETRI_PLACES=181, PETRI_TRANSITIONS=149} [2025-02-06 09:20:37,038 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 69 predicate places. [2025-02-06 09:20:37,038 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 149 transitions, 632 flow [2025-02-06 09:20:37,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 98.1304347826087) internal successors, (2257), 23 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:20:37,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:20:37,039 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:20:37,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:20:37,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 09:20:37,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 09:20:37,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:20:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash -714045418, now seen corresponding path program 4 times [2025-02-06 09:20:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:20:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214893686] [2025-02-06 09:20:37,240 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:20:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:20:37,251 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-02-06 09:20:37,262 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-02-06 09:20:37,262 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:20:37,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:20:37,262 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:20:37,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-02-06 09:20:37,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-02-06 09:20:37,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:20:37,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:20:37,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:20:37,291 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:20:37,292 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-02-06 09:20:37,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-02-06 09:20:37,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-02-06 09:20:37,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-02-06 09:20:37,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-02-06 09:20:37,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-02-06 09:20:37,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-02-06 09:20:37,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:20:37,294 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2025-02-06 09:20:37,339 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 09:20:37,340 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 09:20:37,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 09:20:37 BasicIcfg [2025-02-06 09:20:37,345 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 09:20:37,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 09:20:37,346 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 09:20:37,346 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 09:20:37,346 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:20:32" (3/4) ... [2025-02-06 09:20:37,347 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-06 09:20:37,390 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 12. [2025-02-06 09:20:37,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 09:20:37,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 09:20:37,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 09:20:37,427 INFO L158 Benchmark]: Toolchain (without parser) took 5414.56ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 124.3MB in the beginning and 271.5MB in the end (delta: -147.2MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2025-02-06 09:20:37,427 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:20:37,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.69ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 103.5MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:20:37,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.28ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 101.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:20:37,427 INFO L158 Benchmark]: Boogie Preprocessor took 14.90ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 100.6MB in the end (delta: 946.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:20:37,428 INFO L158 Benchmark]: IcfgBuilder took 318.62ms. Allocated memory is still 167.8MB. Free memory was 100.6MB in the beginning and 83.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:20:37,428 INFO L158 Benchmark]: TraceAbstraction took 4625.84ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 82.9MB in the beginning and 279.9MB in the end (delta: -197.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:20:37,428 INFO L158 Benchmark]: Witness Printer took 80.72ms. Allocated memory is still 352.3MB. Free memory was 279.9MB in the beginning and 271.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:20:37,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.69ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 103.5MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.28ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 101.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.90ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 100.6MB in the end (delta: 946.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 318.62ms. Allocated memory is still 167.8MB. Free memory was 100.6MB in the beginning and 83.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4625.84ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 82.9MB in the beginning and 279.9MB in the end (delta: -197.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.72ms. Allocated memory is still 352.3MB. Free memory was 279.9MB in the beginning and 271.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data; VAL [data=0] [L680] 0 pthread_mutex_t m[10]; VAL [data=0, m={1:0}] [L688] 0 int i = 0; VAL [data=0, i=0, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=1, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=2, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=3, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=4, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=5, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=6, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=7, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=8, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=9, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=10, m={1:0}] [L688] COND FALSE 0 !(i < 10) VAL [data=0, m={1:0}] [L690] 0 pthread_t id; VAL [data=0, m={1:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data=0, id=-1, m={1:0}] [L683] 1 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, m={1:0}] [L693] 0 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, id=-1, m={1:0}] [L683] 1 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=1, m={1:0}] [L693] 0 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=1, id=-1, m={1:0}] Now there is a data race on ~data~0 between C: data++ [683] and C: data++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 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: 4.5s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 520 IncrementalHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 23 mSDtfsCounter, 520 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 900 GetRequests, 797 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=632occurred in iteration=7, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1262 NumberOfCodeBlocks, 1262 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1411 ConstructedInterpolants, 0 QuantifiedInterpolants, 1803 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 3/399 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! [2025-02-06 09:20:37,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)