./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:45:04,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:45:04,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:45:04,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:45:04,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:45:04,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:45:04,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:45:04,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:45:04,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:45:04,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:45:04,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:45:04,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:45:04,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:45:04,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:45:04,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:45:04,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:45:04,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:45:04,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:45:04,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:45:04,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:45:04,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:45:04,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:45:04,868 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:45:04,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:45:04,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:45:04,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:45:04,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:45:04,869 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:45:04,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:45:04,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:45:04,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:45:04,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:04,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:45:04,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:45:04,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:45:04,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:45:04,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:45:04,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:45:04,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:45:04,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:45:04,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:45:04,872 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e [2024-11-20 13:45:05,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:45:05,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:45:05,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:45:05,107 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:45:05,107 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:45:05,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-11-20 13:45:06,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:45:06,629 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:45:06,630 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-11-20 13:45:06,647 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191e48996/b770fc65402945aaa87d6d8e55429efc/FLAG8791bad7f [2024-11-20 13:45:06,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191e48996/b770fc65402945aaa87d6d8e55429efc [2024-11-20 13:45:06,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:45:06,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:45:06,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:06,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:45:06,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:45:06,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:06" (1/1) ... [2024-11-20 13:45:06,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6947276b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:06, skipping insertion in model container [2024-11-20 13:45:06,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:06" (1/1) ... [2024-11-20 13:45:07,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:45:07,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:07,326 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:45:07,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:07,423 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:45:07,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07 WrapperNode [2024-11-20 13:45:07,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:07,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:07,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:45:07,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:45:07,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,479 INFO L138 Inliner]: procedures = 162, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 91 [2024-11-20 13:45:07,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:07,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:45:07,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:45:07,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:45:07,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:45:07,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:45:07,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:45:07,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:45:07,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (1/1) ... [2024-11-20 13:45:07,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:07,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:45:07,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:45:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:45:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:45:07,606 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:45:07,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:45:07,608 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:45:07,697 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:45:07,699 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:45:07,876 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:45:07,876 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:45:07,905 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:45:07,905 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 13:45:07,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:07 BoogieIcfgContainer [2024-11-20 13:45:07,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:45:07,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:45:07,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:45:07,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:45:07,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:45:06" (1/3) ... [2024-11-20 13:45:07,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b4bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:07, skipping insertion in model container [2024-11-20 13:45:07,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:07" (2/3) ... [2024-11-20 13:45:07,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b4bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:07, skipping insertion in model container [2024-11-20 13:45:07,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:07" (3/3) ... [2024-11-20 13:45:07,916 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2024-11-20 13:45:07,933 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:45:07,934 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:45:07,934 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:45:07,995 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:45:08,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 111 transitions, 226 flow [2024-11-20 13:45:08,081 INFO L124 PetriNetUnfolderBase]: 2/110 cut-off events. [2024-11-20 13:45:08,081 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:08,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2024-11-20 13:45:08,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 111 transitions, 226 flow [2024-11-20 13:45:08,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 110 transitions, 223 flow [2024-11-20 13:45:08,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:45:08,104 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;@44c4e000, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:45:08,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 13:45:08,130 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:45:08,131 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2024-11-20 13:45:08,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:08,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:08,133 INFO L204 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] [2024-11-20 13:45:08,136 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:08,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:08,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2030175117, now seen corresponding path program 1 times [2024-11-20 13:45:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:08,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647082297] [2024-11-20 13:45:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:08,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:08,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:08,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647082297] [2024-11-20 13:45:08,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647082297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:08,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:08,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:45:08,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026079477] [2024-11-20 13:45:08,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:08,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:45:08,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 111 [2024-11-20 13:45:08,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 110 transitions, 223 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) [2024-11-20 13:45:08,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:08,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 111 [2024-11-20 13:45:08,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:08,580 INFO L124 PetriNetUnfolderBase]: 7/170 cut-off events. [2024-11-20 13:45:08,580 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:08,581 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 249 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. [2024-11-20 13:45:08,584 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 10 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-11-20 13:45:08,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 247 flow [2024-11-20 13:45:08,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-20 13:45:08,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2024-11-20 13:45:08,598 INFO L175 Difference]: Start difference. First operand has 112 places, 110 transitions, 223 flow. Second operand 3 states and 312 transitions. [2024-11-20 13:45:08,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 247 flow [2024-11-20 13:45:08,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:08,606 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 232 flow [2024-11-20 13:45:08,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:08,611 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 2 predicate places. [2024-11-20 13:45:08,611 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 232 flow [2024-11-20 13:45:08,611 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) [2024-11-20 13:45:08,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:08,612 INFO L204 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] [2024-11-20 13:45:08,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:45:08,612 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:08,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:08,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1906695851, now seen corresponding path program 1 times [2024-11-20 13:45:08,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:08,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298677822] [2024-11-20 13:45:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:08,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:08,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298677822] [2024-11-20 13:45:08,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298677822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:08,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937607338] [2024-11-20 13:45:08,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:08,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:08,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:08,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:08,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:45:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:08,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:45:08,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:45:08,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:08,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937607338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:08,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:08,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:45:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610465738] [2024-11-20 13:45:08,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:08,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:08,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:08,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-20 13:45:08,923 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) [2024-11-20 13:45:08,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:08,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-20 13:45:08,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:08,993 INFO L124 PetriNetUnfolderBase]: 32/259 cut-off events. [2024-11-20 13:45:08,994 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:08,995 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 878 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. [2024-11-20 13:45:08,996 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 17 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2024-11-20 13:45:08,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 120 transitions, 298 flow [2024-11-20 13:45:08,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2024-11-20 13:45:09,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948948948948949 [2024-11-20 13:45:09,004 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 232 flow. Second operand 3 states and 316 transitions. [2024-11-20 13:45:09,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 120 transitions, 298 flow [2024-11-20 13:45:09,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 120 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:09,008 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 282 flow [2024-11-20 13:45:09,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:09,012 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 5 predicate places. [2024-11-20 13:45:09,012 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 282 flow [2024-11-20 13:45:09,012 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) [2024-11-20 13:45:09,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:09,013 INFO L204 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] [2024-11-20 13:45:09,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:45:09,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:09,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:09,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1257755241, now seen corresponding path program 1 times [2024-11-20 13:45:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:09,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903179383] [2024-11-20 13:45:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:09,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:09,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903179383] [2024-11-20 13:45:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903179383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911854047] [2024-11-20 13:45:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:09,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:09,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:09,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:09,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:45:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:09,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:45:09,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:45:09,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:09,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911854047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:09,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:09,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:45:09,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138727691] [2024-11-20 13:45:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:09,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:09,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:09,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-20 13:45:09,428 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) [2024-11-20 13:45:09,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:09,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-20 13:45:09,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:09,475 INFO L124 PetriNetUnfolderBase]: 47/319 cut-off events. [2024-11-20 13:45:09,475 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2024-11-20 13:45:09,476 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 1302 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. [2024-11-20 13:45:09,479 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 16 selfloop transitions, 7 changer transitions 1/123 dead transitions. [2024-11-20 13:45:09,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 123 transitions, 354 flow [2024-11-20 13:45:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2024-11-20 13:45:09,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.933933933933934 [2024-11-20 13:45:09,482 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 282 flow. Second operand 3 states and 311 transitions. [2024-11-20 13:45:09,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 123 transitions, 354 flow [2024-11-20 13:45:09,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 123 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:09,486 INFO L231 Difference]: Finished difference. Result has 119 places, 121 transitions, 326 flow [2024-11-20 13:45:09,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:09,487 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2024-11-20 13:45:09,489 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 121 transitions, 326 flow [2024-11-20 13:45:09,490 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) [2024-11-20 13:45:09,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:09,491 INFO L204 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] [2024-11-20 13:45:09,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 13:45:09,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 13:45:09,692 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:09,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:09,692 INFO L85 PathProgramCache]: Analyzing trace with hash -517686751, now seen corresponding path program 1 times [2024-11-20 13:45:09,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:09,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407704994] [2024-11-20 13:45:09,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:09,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:09,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:09,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407704994] [2024-11-20 13:45:09,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407704994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:09,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125005615] [2024-11-20 13:45:09,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:09,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:09,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:09,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:09,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:45:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:09,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:45:09,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:45:09,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125005615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:09,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:09,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:45:09,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539348462] [2024-11-20 13:45:09,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:09,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:09,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:09,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:09,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:09,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 111 [2024-11-20 13:45:09,881 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) [2024-11-20 13:45:09,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:09,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 111 [2024-11-20 13:45:09,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:09,934 INFO L124 PetriNetUnfolderBase]: 66/386 cut-off events. [2024-11-20 13:45:09,934 INFO L125 PetriNetUnfolderBase]: For 199/207 co-relation queries the response was YES. [2024-11-20 13:45:09,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 386 events. 66/386 cut-off events. For 199/207 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1772 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. [2024-11-20 13:45:09,937 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 17 selfloop transitions, 7 changer transitions 7/128 dead transitions. [2024-11-20 13:45:09,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 128 transitions, 412 flow [2024-11-20 13:45:09,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:09,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2024-11-20 13:45:09,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9219219219219219 [2024-11-20 13:45:09,940 INFO L175 Difference]: Start difference. First operand has 119 places, 121 transitions, 326 flow. Second operand 3 states and 307 transitions. [2024-11-20 13:45:09,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 128 transitions, 412 flow [2024-11-20 13:45:09,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:09,944 INFO L231 Difference]: Finished difference. Result has 121 places, 120 transitions, 344 flow [2024-11-20 13:45:09,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:09,945 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 9 predicate places. [2024-11-20 13:45:09,945 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 120 transitions, 344 flow [2024-11-20 13:45:09,946 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) [2024-11-20 13:45:09,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:09,946 INFO L204 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] [2024-11-20 13:45:09,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 13:45:10,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:10,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:10,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1062936479, now seen corresponding path program 1 times [2024-11-20 13:45:10,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:10,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344972151] [2024-11-20 13:45:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:10,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:10,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:10,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344972151] [2024-11-20 13:45:10,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344972151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:10,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930326782] [2024-11-20 13:45:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:10,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:10,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:10,262 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:10,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:45:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:10,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:45:10,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:10,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:10,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930326782] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:10,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:10,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:45:10,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571767368] [2024-11-20 13:45:10,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:10,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:45:10,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:10,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:45:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:45:10,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-20 13:45:10,455 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) [2024-11-20 13:45:10,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:10,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-20 13:45:10,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:10,547 INFO L124 PetriNetUnfolderBase]: 25/318 cut-off events. [2024-11-20 13:45:10,548 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2024-11-20 13:45:10,548 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 1306 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. [2024-11-20 13:45:10,549 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 14 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2024-11-20 13:45:10,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 408 flow [2024-11-20 13:45:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 889 transitions. [2024-11-20 13:45:10,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8898898898898899 [2024-11-20 13:45:10,551 INFO L175 Difference]: Start difference. First operand has 121 places, 120 transitions, 344 flow. Second operand 9 states and 889 transitions. [2024-11-20 13:45:10,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 128 transitions, 408 flow [2024-11-20 13:45:10,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:10,554 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 380 flow [2024-11-20 13:45:10,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:10,555 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 18 predicate places. [2024-11-20 13:45:10,555 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 380 flow [2024-11-20 13:45:10,556 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) [2024-11-20 13:45:10,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:10,556 INFO L204 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] [2024-11-20 13:45:10,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:45:10,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:10,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:10,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash 828941855, now seen corresponding path program 2 times [2024-11-20 13:45:10,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:10,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351174592] [2024-11-20 13:45:10,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:10,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:10,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:10,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351174592] [2024-11-20 13:45:10,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351174592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:10,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379256757] [2024-11-20 13:45:10,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:10,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:10,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:10,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:10,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:45:10,939 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 13:45:10,939 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:10,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:45:10,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:10,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:11,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379256757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:11,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:11,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:45:11,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307462741] [2024-11-20 13:45:11,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:11,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:45:11,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:11,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:45:11,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:45:11,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-20 13:45:11,114 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) [2024-11-20 13:45:11,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:11,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-20 13:45:11,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:11,293 INFO L124 PetriNetUnfolderBase]: 25/338 cut-off events. [2024-11-20 13:45:11,294 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-20 13:45:11,294 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 1319 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. [2024-11-20 13:45:11,295 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 18 selfloop transitions, 21 changer transitions 0/144 dead transitions. [2024-11-20 13:45:11,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 554 flow [2024-11-20 13:45:11,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:45:11,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:45:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2059 transitions. [2024-11-20 13:45:11,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8833118833118833 [2024-11-20 13:45:11,299 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 380 flow. Second operand 21 states and 2059 transitions. [2024-11-20 13:45:11,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 554 flow [2024-11-20 13:45:11,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 144 transitions, 540 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:11,302 INFO L231 Difference]: Finished difference. Result has 154 places, 139 transitions, 504 flow [2024-11-20 13:45:11,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:11,303 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 42 predicate places. [2024-11-20 13:45:11,303 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 139 transitions, 504 flow [2024-11-20 13:45:11,304 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) [2024-11-20 13:45:11,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:11,305 INFO L204 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] [2024-11-20 13:45:11,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:45:11,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:11,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:11,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:11,509 INFO L85 PathProgramCache]: Analyzing trace with hash -951523169, now seen corresponding path program 3 times [2024-11-20 13:45:11,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:11,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547176768] [2024-11-20 13:45:11,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:11,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:11,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:11,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547176768] [2024-11-20 13:45:11,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547176768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:11,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319007376] [2024-11-20 13:45:11,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 13:45:11,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:11,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:11,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:11,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 13:45:11,844 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-20 13:45:11,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:11,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 13:45:11,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:11,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:12,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319007376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:12,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:12,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-20 13:45:12,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065957886] [2024-11-20 13:45:12,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:12,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 13:45:12,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:12,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 13:45:12,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:45:12,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-20 13:45:12,107 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) [2024-11-20 13:45:12,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:12,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-20 13:45:12,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:12,400 INFO L124 PetriNetUnfolderBase]: 25/353 cut-off events. [2024-11-20 13:45:12,400 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-20 13:45:12,401 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 1314 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. [2024-11-20 13:45:12,402 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 21 selfloop transitions, 30 changer transitions 0/156 dead transitions. [2024-11-20 13:45:12,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 156 transitions, 734 flow [2024-11-20 13:45:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 13:45:12,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-20 13:45:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2934 transitions. [2024-11-20 13:45:12,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8810810810810811 [2024-11-20 13:45:12,407 INFO L175 Difference]: Start difference. First operand has 154 places, 139 transitions, 504 flow. Second operand 30 states and 2934 transitions. [2024-11-20 13:45:12,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 156 transitions, 734 flow [2024-11-20 13:45:12,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 156 transitions, 704 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-20 13:45:12,411 INFO L231 Difference]: Finished difference. Result has 181 places, 149 transitions, 632 flow [2024-11-20 13:45:12,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, 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} [2024-11-20 13:45:12,412 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 69 predicate places. [2024-11-20 13:45:12,412 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 149 transitions, 632 flow [2024-11-20 13:45:12,413 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) [2024-11-20 13:45:12,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:12,414 INFO L204 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] [2024-11-20 13:45:12,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 13:45:12,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:12,618 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:12,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:12,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1766108375, now seen corresponding path program 4 times [2024-11-20 13:45:12,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:12,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878829435] [2024-11-20 13:45:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:12,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:45:12,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:45:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:45:12,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:45:12,694 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:45:12,696 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-20 13:45:12,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-20 13:45:12,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-20 13:45:12,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-20 13:45:12,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-20 13:45:12,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-20 13:45:12,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-20 13:45:12,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:45:12,699 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-11-20 13:45:12,755 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 13:45:12,756 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:45:12,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:45:12 BasicIcfg [2024-11-20 13:45:12,762 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:45:12,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:45:12,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:45:12,763 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:45:12,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:07" (3/4) ... [2024-11-20 13:45:12,765 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-20 13:45:12,812 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:45:12,812 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:45:12,813 INFO L158 Benchmark]: Toolchain (without parser) took 5824.41ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 170.7MB in the beginning and 106.4MB in the end (delta: 64.3MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,813 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 134.2MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:45:12,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.61ms. Allocated memory is still 201.3MB. Free memory was 170.4MB in the beginning and 149.8MB in the end (delta: 20.7MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.57ms. Allocated memory is still 201.3MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,815 INFO L158 Benchmark]: Boogie Preprocessor took 38.99ms. Allocated memory is still 201.3MB. Free memory was 147.7MB in the beginning and 146.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,815 INFO L158 Benchmark]: RCFGBuilder took 386.91ms. Allocated memory is still 201.3MB. Free memory was 146.4MB in the beginning and 128.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,815 INFO L158 Benchmark]: TraceAbstraction took 4854.88ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 128.8MB in the beginning and 111.6MB in the end (delta: 17.2MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,816 INFO L158 Benchmark]: Witness Printer took 49.64ms. Allocated memory is still 243.3MB. Free memory was 111.6MB in the beginning and 106.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 13:45:12,817 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 134.2MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.61ms. Allocated memory is still 201.3MB. Free memory was 170.4MB in the beginning and 149.8MB in the end (delta: 20.7MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.57ms. Allocated memory is still 201.3MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.99ms. Allocated memory is still 201.3MB. Free memory was 147.7MB in the beginning and 146.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.91ms. Allocated memory is still 201.3MB. Free memory was 146.4MB in the beginning and 128.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4854.88ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 128.8MB in the beginning and 111.6MB in the end (delta: 17.2MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * Witness Printer took 49.64ms. Allocated memory is still 243.3MB. Free memory was 111.6MB in the beginning and 106.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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, i=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=1, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=1, m={1:0}] [L688] 0 i++ VAL [data=0, i=2, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=2, m={1:0}] [L688] 0 i++ VAL [data=0, i=3, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=3, m={1:0}] [L688] 0 i++ VAL [data=0, i=4, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=4, m={1:0}] [L688] 0 i++ VAL [data=0, i=5, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=5, m={1:0}] [L688] 0 i++ VAL [data=0, i=6, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=6, m={1:0}] [L688] 0 i++ VAL [data=0, i=7, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=7, m={1:0}] [L688] 0 i++ VAL [data=0, i=8, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=8, m={1:0}] [L688] 0 i++ VAL [data=0, i=9, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=9, m={1:0}] [L688] 0 i++ VAL [data=0, i=10, m={1:0}] [L688] COND FALSE 0 !(i < 10) VAL [data=0, i=10, 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: 4.7s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, 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, 22 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-20 13:45:12,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE