./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.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 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:48:36,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:48:36,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:48:36,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:48:36,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:48:36,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:48:36,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:48:36,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:48:36,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:48:36,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:48:36,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:48:36,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:48:36,760 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:48:36,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:48:36,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:48:36,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:48:36,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:48:36,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:48:36,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:48:36,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:48:36,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:48:36,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:48:36,764 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:48:36,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:48:36,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:48:36,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:48:36,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:48:36,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:48:36,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:48:36,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:48:36,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:48:36,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:36,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:48:36,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:48:36,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:48:36,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:48:36,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:48:36,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:48:36,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:48:36,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:48:36,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:48:36,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde [2024-11-22 17:48:37,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:48:37,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:48:37,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:48:37,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:48:37,055 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:48:37,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2024-11-22 17:48:38,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:48:38,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:48:38,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2024-11-22 17:48:38,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3ad46b1/4f0241fe6ccb4fd49e03b17740a53db7/FLAG98cc20bf8 [2024-11-22 17:48:38,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3ad46b1/4f0241fe6ccb4fd49e03b17740a53db7 [2024-11-22 17:48:38,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:48:38,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:48:38,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:38,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:48:38,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:48:38,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:38" (1/1) ... [2024-11-22 17:48:38,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37903ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:38, skipping insertion in model container [2024-11-22 17:48:38,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:38" (1/1) ... [2024-11-22 17:48:38,864 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:48:39,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:39,266 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:48:39,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:39,382 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:48:39,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39 WrapperNode [2024-11-22 17:48:39,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:39,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:39,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:48:39,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:48:39,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,437 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-11-22 17:48:39,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:39,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:48:39,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:48:39,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:48:39,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:48:39,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:48:39,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:48:39,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:48:39,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (1/1) ... [2024-11-22 17:48:39,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:39,499 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) [2024-11-22 17:48:39,501 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 [2024-11-22 17:48:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-22 17:48:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-22 17:48:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:48:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:48:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 17:48:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:48:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:48:39,537 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:48:39,654 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:48:39,656 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:48:39,850 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:48:39,853 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:48:39,888 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:48:39,889 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 17:48:39,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:39 BoogieIcfgContainer [2024-11-22 17:48:39,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:48:39,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:48:39,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:48:39,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:48:39,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:48:38" (1/3) ... [2024-11-22 17:48:39,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcfa3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:39, skipping insertion in model container [2024-11-22 17:48:39,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:39" (2/3) ... [2024-11-22 17:48:39,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcfa3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:39, skipping insertion in model container [2024-11-22 17:48:39,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:39" (3/3) ... [2024-11-22 17:48:39,900 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2024-11-22 17:48:39,916 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:48:39,916 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-22 17:48:39,916 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:48:39,977 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 17:48:40,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 188 flow [2024-11-22 17:48:40,067 INFO L124 PetriNetUnfolderBase]: 4/91 cut-off events. [2024-11-22 17:48:40,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:40,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 4/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 163 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-22 17:48:40,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 92 transitions, 188 flow [2024-11-22 17:48:40,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 185 flow [2024-11-22 17:48:40,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:48:40,097 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;@6d4286ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:48:40,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-22 17:48:40,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:48:40,112 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-11-22 17:48:40,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:40,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:40,113 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] [2024-11-22 17:48:40,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:40,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash 644524114, now seen corresponding path program 1 times [2024-11-22 17:48:40,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:40,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793962747] [2024-11-22 17:48:40,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:40,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:40,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:40,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793962747] [2024-11-22 17:48:40,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793962747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:40,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:40,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:48:40,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4614529] [2024-11-22 17:48:40,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:40,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:40,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:40,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:48:40,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-22 17:48:40,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2024-11-22 17:48:40,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:40,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-22 17:48:40,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:40,570 INFO L124 PetriNetUnfolderBase]: 9/165 cut-off events. [2024-11-22 17:48:40,570 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:40,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 165 events. 9/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 385 event pairs, 6 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 134. Up to 26 conditions per place. [2024-11-22 17:48:40,573 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 12 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-11-22 17:48:40,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 213 flow [2024-11-22 17:48:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-22 17:48:40,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-22 17:48:40,586 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 185 flow. Second operand 3 states and 253 transitions. [2024-11-22 17:48:40,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 213 flow [2024-11-22 17:48:40,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:40,592 INFO L231 Difference]: Finished difference. Result has 93 places, 91 transitions, 198 flow [2024-11-22 17:48:40,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=93, PETRI_TRANSITIONS=91} [2024-11-22 17:48:40,598 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2024-11-22 17:48:40,599 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 91 transitions, 198 flow [2024-11-22 17:48:40,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2024-11-22 17:48:40,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:40,600 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] [2024-11-22 17:48:40,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:48:40,600 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:40,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1080794383, now seen corresponding path program 1 times [2024-11-22 17:48:40,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:40,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045722574] [2024-11-22 17:48:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:40,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:40,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:40,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045722574] [2024-11-22 17:48:40,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045722574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:40,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581810794] [2024-11-22 17:48:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:40,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:40,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:40,763 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) [2024-11-22 17:48:40,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:48:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:40,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:40,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:40,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581810794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:40,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:40,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:40,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993752938] [2024-11-22 17:48:40,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:40,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:40,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:40,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2024-11-22 17:48:40,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2024-11-22 17:48:40,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:40,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2024-11-22 17:48:40,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:40,947 INFO L124 PetriNetUnfolderBase]: 15/151 cut-off events. [2024-11-22 17:48:40,947 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:40,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 151 events. 15/151 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 415 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 170. Up to 30 conditions per place. [2024-11-22 17:48:40,948 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 11 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2024-11-22 17:48:40,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 222 flow [2024-11-22 17:48:40,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-11-22 17:48:40,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2024-11-22 17:48:40,952 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 198 flow. Second operand 3 states and 251 transitions. [2024-11-22 17:48:40,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 222 flow [2024-11-22 17:48:40,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:40,959 INFO L231 Difference]: Finished difference. Result has 92 places, 89 transitions, 194 flow [2024-11-22 17:48:40,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=92, PETRI_TRANSITIONS=89} [2024-11-22 17:48:40,960 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-11-22 17:48:40,960 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 89 transitions, 194 flow [2024-11-22 17:48:40,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2024-11-22 17:48:40,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:40,961 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] [2024-11-22 17:48:40,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:48:41,161 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 [2024-11-22 17:48:41,162 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:41,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash -857199266, now seen corresponding path program 1 times [2024-11-22 17:48:41,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:41,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559298464] [2024-11-22 17:48:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:41,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:41,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:41,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559298464] [2024-11-22 17:48:41,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559298464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:41,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65883282] [2024-11-22 17:48:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:41,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:41,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:41,262 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) [2024-11-22 17:48:41,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:48:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:41,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:41,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:41,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:41,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65883282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:41,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:41,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165452435] [2024-11-22 17:48:41,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:41,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:41,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2024-11-22 17:48:41,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2024-11-22 17:48:41,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:41,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2024-11-22 17:48:41,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:41,405 INFO L124 PetriNetUnfolderBase]: 15/153 cut-off events. [2024-11-22 17:48:41,406 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:41,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 153 events. 15/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 421 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 145. Up to 30 conditions per place. [2024-11-22 17:48:41,407 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 11 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2024-11-22 17:48:41,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 89 transitions, 218 flow [2024-11-22 17:48:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:41,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-11-22 17:48:41,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2024-11-22 17:48:41,409 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 194 flow. Second operand 3 states and 251 transitions. [2024-11-22 17:48:41,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 89 transitions, 218 flow [2024-11-22 17:48:41,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:41,412 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 191 flow [2024-11-22 17:48:41,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-22 17:48:41,413 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 0 predicate places. [2024-11-22 17:48:41,413 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 191 flow [2024-11-22 17:48:41,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2024-11-22 17:48:41,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:41,414 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:41,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:41,614 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 [2024-11-22 17:48:41,615 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:41,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:41,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2011547939, now seen corresponding path program 1 times [2024-11-22 17:48:41,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:41,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518903876] [2024-11-22 17:48:41,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:41,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:41,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:41,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518903876] [2024-11-22 17:48:41,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518903876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:41,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509291959] [2024-11-22 17:48:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:41,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:41,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:41,748 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) [2024-11-22 17:48:41,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 17:48:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:41,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:41,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 17:48:41,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:41,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509291959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:41,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:41,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:41,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907337685] [2024-11-22 17:48:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:41,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:41,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-22 17:48:41,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-22 17:48:41,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:41,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-22 17:48:41,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:41,910 INFO L124 PetriNetUnfolderBase]: 18/201 cut-off events. [2024-11-22 17:48:41,911 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 17:48:41,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 201 events. 18/201 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 671 event pairs, 10 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 146. Up to 35 conditions per place. [2024-11-22 17:48:41,914 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 14 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-11-22 17:48:41,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 91 transitions, 237 flow [2024-11-22 17:48:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-11-22 17:48:41,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2024-11-22 17:48:41,916 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 191 flow. Second operand 3 states and 252 transitions. [2024-11-22 17:48:41,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 91 transitions, 237 flow [2024-11-22 17:48:41,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:41,920 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 206 flow [2024-11-22 17:48:41,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-11-22 17:48:41,922 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-11-22 17:48:41,922 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 206 flow [2024-11-22 17:48:41,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-22 17:48:41,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:41,922 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:41,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:42,122 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 [2024-11-22 17:48:42,123 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:42,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:42,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2034720996, now seen corresponding path program 1 times [2024-11-22 17:48:42,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:42,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391753720] [2024-11-22 17:48:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:42,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:42,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391753720] [2024-11-22 17:48:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391753720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626602402] [2024-11-22 17:48:42,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:42,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:42,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:42,199 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) [2024-11-22 17:48:42,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 17:48:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:42,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:42,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 17:48:42,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:42,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626602402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:42,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:42,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:42,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399496853] [2024-11-22 17:48:42,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:42,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:42,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:42,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:42,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-22 17:48:42,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-22 17:48:42,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:42,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-22 17:48:42,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:42,351 INFO L124 PetriNetUnfolderBase]: 28/293 cut-off events. [2024-11-22 17:48:42,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:42,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 293 events. 28/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1201 event pairs, 13 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 286. Up to 48 conditions per place. [2024-11-22 17:48:42,353 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 14 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2024-11-22 17:48:42,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 255 flow [2024-11-22 17:48:42,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-22 17:48:42,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-22 17:48:42,356 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 206 flow. Second operand 3 states and 253 transitions. [2024-11-22 17:48:42,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 255 flow [2024-11-22 17:48:42,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:42,358 INFO L231 Difference]: Finished difference. Result has 93 places, 90 transitions, 226 flow [2024-11-22 17:48:42,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=93, PETRI_TRANSITIONS=90} [2024-11-22 17:48:42,359 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2024-11-22 17:48:42,359 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 226 flow [2024-11-22 17:48:42,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-22 17:48:42,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:42,360 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] [2024-11-22 17:48:42,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:42,560 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 [2024-11-22 17:48:42,561 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:42,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1197608942, now seen corresponding path program 1 times [2024-11-22 17:48:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:42,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086800733] [2024-11-22 17:48:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:42,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:42,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:42,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086800733] [2024-11-22 17:48:42,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086800733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:42,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938974982] [2024-11-22 17:48:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:42,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:42,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:42,623 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) [2024-11-22 17:48:42,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 17:48:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:42,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:42,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:42,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:42,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938974982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:42,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802140794] [2024-11-22 17:48:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:42,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:42,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:42,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:42,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-22 17:48:42,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-22 17:48:42,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:42,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-22 17:48:42,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:42,811 INFO L124 PetriNetUnfolderBase]: 46/395 cut-off events. [2024-11-22 17:48:42,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:42,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 395 events. 46/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2025 event pairs, 15 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 440. Up to 56 conditions per place. [2024-11-22 17:48:42,815 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 17 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2024-11-22 17:48:42,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 292 flow [2024-11-22 17:48:42,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-11-22 17:48:42,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9384057971014492 [2024-11-22 17:48:42,817 INFO L175 Difference]: Start difference. First operand has 93 places, 90 transitions, 226 flow. Second operand 3 states and 259 transitions. [2024-11-22 17:48:42,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 100 transitions, 292 flow [2024-11-22 17:48:42,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:42,820 INFO L231 Difference]: Finished difference. Result has 96 places, 96 transitions, 274 flow [2024-11-22 17:48:42,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=96, PETRI_TRANSITIONS=96} [2024-11-22 17:48:42,822 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2024-11-22 17:48:42,822 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 96 transitions, 274 flow [2024-11-22 17:48:42,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-22 17:48:42,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:42,823 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] [2024-11-22 17:48:42,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 17:48:43,027 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 [2024-11-22 17:48:43,028 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:43,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:43,029 INFO L85 PathProgramCache]: Analyzing trace with hash -640616272, now seen corresponding path program 1 times [2024-11-22 17:48:43,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:43,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728798937] [2024-11-22 17:48:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:43,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:43,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:43,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728798937] [2024-11-22 17:48:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728798937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108523610] [2024-11-22 17:48:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:43,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:43,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:43,091 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) [2024-11-22 17:48:43,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 17:48:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:43,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:43,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:43,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:43,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:43,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108523610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:43,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:43,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:43,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848070997] [2024-11-22 17:48:43,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:43,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:43,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:43,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:43,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:43,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-22 17:48:43,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2024-11-22 17:48:43,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:43,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-22 17:48:43,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:43,258 INFO L124 PetriNetUnfolderBase]: 61/460 cut-off events. [2024-11-22 17:48:43,259 INFO L125 PetriNetUnfolderBase]: For 103/108 co-relation queries the response was YES. [2024-11-22 17:48:43,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 460 events. 61/460 cut-off events. For 103/108 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2573 event pairs, 23 based on Foata normal form. 3/442 useless extension candidates. Maximal degree in co-relation 524. Up to 103 conditions per place. [2024-11-22 17:48:43,261 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 16 selfloop transitions, 7 changer transitions 2/103 dead transitions. [2024-11-22 17:48:43,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 103 transitions, 346 flow [2024-11-22 17:48:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:43,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-11-22 17:48:43,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9202898550724637 [2024-11-22 17:48:43,262 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 274 flow. Second operand 3 states and 254 transitions. [2024-11-22 17:48:43,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 103 transitions, 346 flow [2024-11-22 17:48:43,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 103 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:43,265 INFO L231 Difference]: Finished difference. Result has 98 places, 100 transitions, 314 flow [2024-11-22 17:48:43,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=98, PETRI_TRANSITIONS=100} [2024-11-22 17:48:43,266 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 7 predicate places. [2024-11-22 17:48:43,266 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 100 transitions, 314 flow [2024-11-22 17:48:43,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2024-11-22 17:48:43,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:43,267 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] [2024-11-22 17:48:43,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:43,470 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 [2024-11-22 17:48:43,471 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:43,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:43,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1738734521, now seen corresponding path program 1 times [2024-11-22 17:48:43,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:43,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197246787] [2024-11-22 17:48:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:43,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:43,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:43,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197246787] [2024-11-22 17:48:43,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197246787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:43,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196232749] [2024-11-22 17:48:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:43,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:43,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:43,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:43,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 17:48:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:43,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:43,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:43,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:43,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196232749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:43,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:43,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:43,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519892816] [2024-11-22 17:48:43,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:43,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:43,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:43,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:43,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 92 [2024-11-22 17:48:43,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 100 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-11-22 17:48:43,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:43,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 92 [2024-11-22 17:48:43,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:43,719 INFO L124 PetriNetUnfolderBase]: 79/520 cut-off events. [2024-11-22 17:48:43,719 INFO L125 PetriNetUnfolderBase]: For 237/244 co-relation queries the response was YES. [2024-11-22 17:48:43,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 520 events. 79/520 cut-off events. For 237/244 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3024 event pairs, 27 based on Foata normal form. 2/503 useless extension candidates. Maximal degree in co-relation 718. Up to 128 conditions per place. [2024-11-22 17:48:43,721 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 17 selfloop transitions, 7 changer transitions 7/107 dead transitions. [2024-11-22 17:48:43,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 400 flow [2024-11-22 17:48:43,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-22 17:48:43,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9057971014492754 [2024-11-22 17:48:43,723 INFO L175 Difference]: Start difference. First operand has 98 places, 100 transitions, 314 flow. Second operand 3 states and 250 transitions. [2024-11-22 17:48:43,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 400 flow [2024-11-22 17:48:43,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:43,727 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 332 flow [2024-11-22 17:48:43,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=100, PETRI_TRANSITIONS=99} [2024-11-22 17:48:43,730 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2024-11-22 17:48:43,731 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 332 flow [2024-11-22 17:48:43,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-11-22 17:48:43,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:43,732 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] [2024-11-22 17:48:43,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:43,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:43,937 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:43,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1976075803, now seen corresponding path program 1 times [2024-11-22 17:48:43,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:43,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854171144] [2024-11-22 17:48:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:43,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:44,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:44,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854171144] [2024-11-22 17:48:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854171144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437123886] [2024-11-22 17:48:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:44,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:44,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:44,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:44,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 17:48:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:44,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:48:44,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:44,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:44,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:44,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437123886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:44,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:44,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:48:44,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058217086] [2024-11-22 17:48:44,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:44,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:48:44,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:44,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:48:44,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:48:44,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2024-11-22 17:48:44,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 77.1) internal successors, (771), 10 states have internal predecessors, (771), 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) [2024-11-22 17:48:44,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:44,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2024-11-22 17:48:44,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:44,345 INFO L124 PetriNetUnfolderBase]: 40/464 cut-off events. [2024-11-22 17:48:44,346 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-22 17:48:44,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 464 events. 40/464 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2373 event pairs, 12 based on Foata normal form. 7/458 useless extension candidates. Maximal degree in co-relation 508. Up to 54 conditions per place. [2024-11-22 17:48:44,348 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 15 selfloop transitions, 13 changer transitions 0/110 dead transitions. [2024-11-22 17:48:44,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 416 flow [2024-11-22 17:48:44,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 17:48:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 17:48:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 857 transitions. [2024-11-22 17:48:44,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468379446640316 [2024-11-22 17:48:44,350 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 332 flow. Second operand 11 states and 857 transitions. [2024-11-22 17:48:44,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 416 flow [2024-11-22 17:48:44,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 110 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:44,354 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 392 flow [2024-11-22 17:48:44,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=392, PETRI_PLACES=111, PETRI_TRANSITIONS=108} [2024-11-22 17:48:44,355 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 20 predicate places. [2024-11-22 17:48:44,355 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 392 flow [2024-11-22 17:48:44,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.1) internal successors, (771), 10 states have internal predecessors, (771), 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) [2024-11-22 17:48:44,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:44,356 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:44,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 17:48:44,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-22 17:48:44,561 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:44,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:44,562 INFO L85 PathProgramCache]: Analyzing trace with hash -227121693, now seen corresponding path program 2 times [2024-11-22 17:48:44,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:44,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267885372] [2024-11-22 17:48:44,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:44,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:44,574 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:44,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 17:48:44,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:44,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267885372] [2024-11-22 17:48:44,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267885372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:44,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:44,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:44,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325350256] [2024-11-22 17:48:44,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:44,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 17:48:44,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 17:48:44,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:48:44,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 92 [2024-11-22 17:48:44,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 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) [2024-11-22 17:48:44,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:44,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 92 [2024-11-22 17:48:44,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:44,817 INFO L124 PetriNetUnfolderBase]: 58/797 cut-off events. [2024-11-22 17:48:44,817 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-22 17:48:44,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 797 events. 58/797 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5300 event pairs, 13 based on Foata normal form. 2/780 useless extension candidates. Maximal degree in co-relation 487. Up to 74 conditions per place. [2024-11-22 17:48:44,820 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 13 selfloop transitions, 11 changer transitions 8/130 dead transitions. [2024-11-22 17:48:44,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 130 transitions, 504 flow [2024-11-22 17:48:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:48:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 17:48:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 601 transitions. [2024-11-22 17:48:44,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9332298136645962 [2024-11-22 17:48:44,823 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 392 flow. Second operand 7 states and 601 transitions. [2024-11-22 17:48:44,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 130 transitions, 504 flow [2024-11-22 17:48:44,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 492 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:44,827 INFO L231 Difference]: Finished difference. Result has 118 places, 115 transitions, 429 flow [2024-11-22 17:48:44,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=429, PETRI_PLACES=118, PETRI_TRANSITIONS=115} [2024-11-22 17:48:44,828 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 27 predicate places. [2024-11-22 17:48:44,828 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 115 transitions, 429 flow [2024-11-22 17:48:44,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 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) [2024-11-22 17:48:44,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:44,829 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-22 17:48:44,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:48:44,830 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:44,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:44,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2111580457, now seen corresponding path program 1 times [2024-11-22 17:48:44,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:44,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21668121] [2024-11-22 17:48:44,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:44,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:48:44,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:44,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21668121] [2024-11-22 17:48:44,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21668121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:44,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514655999] [2024-11-22 17:48:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:44,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:44,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:44,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:44,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 17:48:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:45,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 17:48:45,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:48:45,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 17:48:45,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514655999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:45,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:45,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-22 17:48:45,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305225906] [2024-11-22 17:48:45,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:45,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 17:48:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:45,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 17:48:45,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-22 17:48:45,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 92 [2024-11-22 17:48:45,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 429 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2024-11-22 17:48:45,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:45,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 92 [2024-11-22 17:48:45,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:45,454 INFO L124 PetriNetUnfolderBase]: 58/761 cut-off events. [2024-11-22 17:48:45,454 INFO L125 PetriNetUnfolderBase]: For 309/315 co-relation queries the response was YES. [2024-11-22 17:48:45,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 761 events. 58/761 cut-off events. For 309/315 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4490 event pairs, 14 based on Foata normal form. 14/754 useless extension candidates. Maximal degree in co-relation 594. Up to 94 conditions per place. [2024-11-22 17:48:45,457 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 21 selfloop transitions, 20 changer transitions 0/128 dead transitions. [2024-11-22 17:48:45,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 128 transitions, 569 flow [2024-11-22 17:48:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 17:48:45,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-22 17:48:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1332 transitions. [2024-11-22 17:48:45,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8516624040920716 [2024-11-22 17:48:45,461 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 429 flow. Second operand 17 states and 1332 transitions. [2024-11-22 17:48:45,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 128 transitions, 569 flow [2024-11-22 17:48:45,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 567 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:45,464 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 560 flow [2024-11-22 17:48:45,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=560, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-22 17:48:45,466 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 46 predicate places. [2024-11-22 17:48:45,466 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 560 flow [2024-11-22 17:48:45,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 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) [2024-11-22 17:48:45,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:45,467 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:45,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:45,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:45,668 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:45,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:45,668 INFO L85 PathProgramCache]: Analyzing trace with hash -279629298, now seen corresponding path program 1 times [2024-11-22 17:48:45,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:45,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690741006] [2024-11-22 17:48:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:45,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-22 17:48:45,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:45,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690741006] [2024-11-22 17:48:45,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690741006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:45,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050400302] [2024-11-22 17:48:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:45,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:45,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:45,815 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:45,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 17:48:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:45,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 17:48:45,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-22 17:48:45,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-22 17:48:46,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050400302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:46,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:46,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-22 17:48:46,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510000743] [2024-11-22 17:48:46,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:46,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 17:48:46,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:46,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 17:48:46,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:48:46,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 92 [2024-11-22 17:48:46,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 560 flow. Second operand has 15 states, 15 states have (on average 76.86666666666666) internal successors, (1153), 15 states have internal predecessors, (1153), 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) [2024-11-22 17:48:46,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:46,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 92 [2024-11-22 17:48:46,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:46,441 INFO L124 PetriNetUnfolderBase]: 64/772 cut-off events. [2024-11-22 17:48:46,441 INFO L125 PetriNetUnfolderBase]: For 549/555 co-relation queries the response was YES. [2024-11-22 17:48:46,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 772 events. 64/772 cut-off events. For 549/555 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3615 event pairs, 13 based on Foata normal form. 9/761 useless extension candidates. Maximal degree in co-relation 820. Up to 66 conditions per place. [2024-11-22 17:48:46,444 INFO L140 encePairwiseOnDemand]: 83/92 looper letters, 29 selfloop transitions, 45 changer transitions 1/158 dead transitions. [2024-11-22 17:48:46,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 906 flow [2024-11-22 17:48:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:48:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:48:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1613 transitions. [2024-11-22 17:48:46,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348861283643892 [2024-11-22 17:48:46,448 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 560 flow. Second operand 21 states and 1613 transitions. [2024-11-22 17:48:46,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 906 flow [2024-11-22 17:48:46,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 888 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-22 17:48:46,454 INFO L231 Difference]: Finished difference. Result has 156 places, 146 transitions, 823 flow [2024-11-22 17:48:46,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=823, PETRI_PLACES=156, PETRI_TRANSITIONS=146} [2024-11-22 17:48:46,455 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 65 predicate places. [2024-11-22 17:48:46,455 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 146 transitions, 823 flow [2024-11-22 17:48:46,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 76.86666666666666) internal successors, (1153), 15 states have internal predecessors, (1153), 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) [2024-11-22 17:48:46,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:46,456 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2024-11-22 17:48:46,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 17:48:46,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 17:48:46,657 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:46,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2019335057, now seen corresponding path program 2 times [2024-11-22 17:48:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:46,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087826554] [2024-11-22 17:48:46,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:46,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:46,677 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 17:48:46,677 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:48:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087826554] [2024-11-22 17:48:46,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087826554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517646136] [2024-11-22 17:48:46,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:46,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:46,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:46,885 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:46,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 17:48:46,984 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 17:48:46,984 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:46,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 17:48:46,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:48:47,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:48:47,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517646136] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:47,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:47,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2024-11-22 17:48:47,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256971514] [2024-11-22 17:48:47,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:47,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 17:48:47,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 17:48:47,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-22 17:48:47,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2024-11-22 17:48:47,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 146 transitions, 823 flow. Second operand has 17 states, 17 states have (on average 77.52941176470588) internal successors, (1318), 17 states have internal predecessors, (1318), 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) [2024-11-22 17:48:47,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:47,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2024-11-22 17:48:47,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:47,508 INFO L124 PetriNetUnfolderBase]: 37/455 cut-off events. [2024-11-22 17:48:47,508 INFO L125 PetriNetUnfolderBase]: For 499/501 co-relation queries the response was YES. [2024-11-22 17:48:47,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 455 events. 37/455 cut-off events. For 499/501 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1578 event pairs, 5 based on Foata normal form. 1/446 useless extension candidates. Maximal degree in co-relation 752. Up to 53 conditions per place. [2024-11-22 17:48:47,510 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 35 selfloop transitions, 34 changer transitions 0/153 dead transitions. [2024-11-22 17:48:47,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 153 transitions, 1011 flow [2024-11-22 17:48:47,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:48:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:48:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1623 transitions. [2024-11-22 17:48:47,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8400621118012422 [2024-11-22 17:48:47,515 INFO L175 Difference]: Start difference. First operand has 156 places, 146 transitions, 823 flow. Second operand 21 states and 1623 transitions. [2024-11-22 17:48:47,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 153 transitions, 1011 flow [2024-11-22 17:48:47,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 153 transitions, 911 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-11-22 17:48:47,544 INFO L231 Difference]: Finished difference. Result has 172 places, 146 transitions, 860 flow [2024-11-22 17:48:47,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=860, PETRI_PLACES=172, PETRI_TRANSITIONS=146} [2024-11-22 17:48:47,545 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 81 predicate places. [2024-11-22 17:48:47,545 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 146 transitions, 860 flow [2024-11-22 17:48:47,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 77.52941176470588) internal successors, (1318), 17 states have internal predecessors, (1318), 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) [2024-11-22 17:48:47,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:47,546 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:47,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 17:48:47,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 17:48:47,746 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-22 17:48:47,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:47,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1843761931, now seen corresponding path program 1 times [2024-11-22 17:48:47,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:47,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941132126] [2024-11-22 17:48:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:47,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:48:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:47,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:48:47,845 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:48:47,846 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-22 17:48:47,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-22 17:48:47,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-22 17:48:47,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:48:47,849 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:47,952 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 17:48:47,952 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 17:48:47,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:48:47 BasicIcfg [2024-11-22 17:48:47,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 17:48:47,958 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 17:48:47,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 17:48:47,959 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 17:48:47,959 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:39" (3/4) ... [2024-11-22 17:48:47,960 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 17:48:48,039 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 17:48:48,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 17:48:48,040 INFO L158 Benchmark]: Toolchain (without parser) took 9235.64ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 119.8MB in the beginning and 99.4MB in the end (delta: 20.4MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2024-11-22 17:48:48,040 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:48,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.85ms. Allocated memory is still 148.9MB. Free memory was 119.8MB in the beginning and 89.6MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-22 17:48:48,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.34ms. Allocated memory is still 148.9MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:48,040 INFO L158 Benchmark]: Boogie Preprocessor took 27.99ms. Allocated memory is still 148.9MB. Free memory was 87.5MB in the beginning and 86.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:48,041 INFO L158 Benchmark]: RCFGBuilder took 423.39ms. Allocated memory is still 148.9MB. Free memory was 86.2MB in the beginning and 70.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 17:48:48,041 INFO L158 Benchmark]: TraceAbstraction took 8065.16ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 69.4MB in the beginning and 112.0MB in the end (delta: -42.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:48,042 INFO L158 Benchmark]: Witness Printer took 80.62ms. Allocated memory is still 180.4MB. Free memory was 112.0MB in the beginning and 99.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 17:48:48,043 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.85ms. Allocated memory is still 148.9MB. Free memory was 119.8MB in the beginning and 89.6MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.34ms. Allocated memory is still 148.9MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.99ms. Allocated memory is still 148.9MB. Free memory was 87.5MB in the beginning and 86.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 423.39ms. Allocated memory is still 148.9MB. Free memory was 86.2MB in the beginning and 70.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8065.16ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 69.4MB in the beginning and 112.0MB in the end (delta: -42.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.62ms. Allocated memory is still 180.4MB. Free memory was 112.0MB in the beginning and 99.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1009]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; VAL [glob=0] [L988] 0 pthread_mutex_t *p, *q; VAL [glob=0, p={0:0}, q={0:0}] [L996] 0 pthread_t t1, t2; VAL [glob=0, p={0:0}, q={0:0}] [L997] 0 int i; VAL [glob=0, p={0:0}, q={0:0}] [L998] 0 pthread_mutex_t *a; VAL [glob=0, p={0:0}, q={0:0}] [L999] 0 i=0 VAL [glob=0, i=0, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [glob=0, i=0, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}] [L999] 0 i++ VAL [a={-2:0}, glob=0, i=1, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-2:0}, glob=0, i=1, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}] [L999] 0 i++ VAL [a={-3:0}, glob=0, i=2, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-3:0}, glob=0, i=2, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}] [L999] 0 i++ VAL [a={-4:0}, glob=0, i=3, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-4:0}, glob=0, i=3, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-5:0}, glob=0, i=3, p={0:0}, q={0:0}] [L1002] COND TRUE 0 i==3 VAL [a={-5:0}, glob=0, i=3, p={0:0}, q={0:0}] [L1003] 0 p = a VAL [a={-5:0}, glob=0, i=3, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-5:0}, glob=0, i=3, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-5:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-5:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-6:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-6:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-7:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-7:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-8:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-8:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1004] COND TRUE 0 i==7 VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1005] 0 q = a VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={-9:0}] [L999] 0 i++ VAL [a={-9:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L999] COND TRUE 0 i < 10 VAL [a={-9:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L999] 0 i++ VAL [a={-10:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L999] COND TRUE 0 i < 10 VAL [a={-10:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L999] 0 i++ VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}] [L999] COND FALSE 0 !(i < 10) VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}] [L1007] FCALL, FORK 0 pthread_create(&t1, 0, f, 0) VAL [\old(x)={0:0}, a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1=-1] [L1008] 0 pthread_mutex_lock(p) VAL [\old(x)={0:0}, a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1=-1] [L990] 1 pthread_mutex_lock(q) VAL [\old(x)={0:0}, glob=0, p={-5:0}, q={-9:0}, x={0:0}] [L991] 1 glob++ VAL [\old(x)={0:0}, glob=0, p={-5:0}, q={-9:0}, x={0:0}] [L1009] 0 glob++ VAL [\old(x)={0:0}, a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1=-1, x={0:0}] [L991] 1 glob++ VAL [\old(x)={0:0}, glob=1, p={-5:0}, q={-9:0}, x={0:0}] [L1009] 0 glob++ VAL [\old(x)={0:0}, a={-11:0}, glob=1, i=10, p={-5:0}, q={-9:0}, t1=-1, x={0:0}] Now there is a data race on ~glob~0 between C: glob++ [991] and C: glob++ [1009] - UnprovableResult [Line: 990]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 992]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1008]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1003]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1009]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 15 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: 7.8s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 881 IncrementalHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 102 mSDtfsCounter, 881 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1034 GetRequests, 903 SyntacticMatches, 10 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=860occurred in iteration=13, InterpolantAutomatonStates: 101, 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: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1400 NumberOfCodeBlocks, 1370 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1574 ConstructedInterpolants, 0 QuantifiedInterpolants, 2823 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1509 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 1038/1596 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! [2024-11-22 17:48:48,063 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