./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/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-wip.fs.cvc5-61a6796-m [2024-10-14 17:04:06,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:04:07,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:04:07,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:04:07,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:04:07,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:04:07,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:04:07,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:04:07,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:04:07,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:04:07,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:04:07,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:04:07,041 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:04:07,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:04:07,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:04:07,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:04:07,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:04:07,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:04:07,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:04:07,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:04:07,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:04:07,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:04:07,049 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:04:07,049 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:04:07,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:04:07,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:04:07,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:04:07,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:04:07,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:04:07,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:04:07,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:04:07,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:04:07,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:04:07,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:04:07,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:04:07,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:04:07,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:04:07,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:04:07,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:04:07,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:04:07,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:04:07,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde [2024-10-14 17:04:07,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:04:07,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:04:07,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:04:07,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:04:07,323 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:04:07,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2024-10-14 17:04:08,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:04:08,976 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:04:08,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2024-10-14 17:04:08,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216b63057/4791635c618c434cb6336fb9aa2a1587/FLAG170c584e0 [2024-10-14 17:04:09,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216b63057/4791635c618c434cb6336fb9aa2a1587 [2024-10-14 17:04:09,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:04:09,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:04:09,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:04:09,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:04:09,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:04:09,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fba807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09, skipping insertion in model container [2024-10-14 17:04:09,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:04:09,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:04:09,502 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:04:09,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:04:09,631 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:04:09,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09 WrapperNode [2024-10-14 17:04:09,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:04:09,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:04:09,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:04:09,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:04:09,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,678 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-10-14 17:04:09,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:04:09,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:04:09,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:04:09,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:04:09,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:04:09,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:04:09,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:04:09,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:04:09,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (1/1) ... [2024-10-14 17:04:09,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:04:09,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:09,758 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) [2024-10-14 17:04:09,764 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 [2024-10-14 17:04:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-14 17:04:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-14 17:04:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:04:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:04:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:04:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:04:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:04:09,814 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:04:09,973 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:04:09,976 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:04:10,157 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:04:10,157 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:04:10,200 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:04:10,200 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 17:04:10,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:10 BoogieIcfgContainer [2024-10-14 17:04:10,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:04:10,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:04:10,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:04:10,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:04:10,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:04:09" (1/3) ... [2024-10-14 17:04:10,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307f0890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:04:10, skipping insertion in model container [2024-10-14 17:04:10,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:09" (2/3) ... [2024-10-14 17:04:10,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307f0890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:04:10, skipping insertion in model container [2024-10-14 17:04:10,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:10" (3/3) ... [2024-10-14 17:04:10,212 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2024-10-14 17:04:10,230 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:04:10,230 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-14 17:04:10,230 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:04:10,293 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 17:04:10,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 188 flow [2024-10-14 17:04:10,361 INFO L124 PetriNetUnfolderBase]: 4/91 cut-off events. [2024-10-14 17:04:10,362 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:10,366 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. [2024-10-14 17:04:10,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 92 transitions, 188 flow [2024-10-14 17:04:10,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 185 flow [2024-10-14 17:04:10,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:04:10,386 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;@55b9d43b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:04:10,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-14 17:04:10,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:04:10,398 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-10-14 17:04:10,398 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:10,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:10,399 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] [2024-10-14 17:04:10,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-14 17:04:10,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash 644524114, now seen corresponding path program 1 times [2024-10-14 17:04:10,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:10,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767663774] [2024-10-14 17:04:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:10,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:10,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767663774] [2024-10-14 17:04:10,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767663774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:10,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:04:10,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:04:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180898521] [2024-10-14 17:04:10,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:10,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:10,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:10,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:10,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:04:10,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-10-14 17:04:10,685 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) [2024-10-14 17:04:10,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:10,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-10-14 17:04:10,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:10,743 INFO L124 PetriNetUnfolderBase]: 9/165 cut-off events. [2024-10-14 17:04:10,744 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:04:10,745 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. [2024-10-14 17:04:10,747 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 12 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-10-14 17:04:10,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 213 flow [2024-10-14 17:04:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-10-14 17:04:10,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-10-14 17:04:10,766 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 185 flow. Second operand 3 states and 253 transitions. [2024-10-14 17:04:10,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 213 flow [2024-10-14 17:04:10,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:10,778 INFO L231 Difference]: Finished difference. Result has 93 places, 91 transitions, 198 flow [2024-10-14 17:04:10,780 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} [2024-10-14 17:04:10,784 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2024-10-14 17:04:10,787 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 91 transitions, 198 flow [2024-10-14 17:04:10,787 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) [2024-10-14 17:04:10,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:10,788 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] [2024-10-14 17:04:10,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:04:10,788 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-14 17:04:10,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1080794383, now seen corresponding path program 1 times [2024-10-14 17:04:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:10,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116458072] [2024-10-14 17:04:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:11,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:11,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116458072] [2024-10-14 17:04:11,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116458072] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:11,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746241668] [2024-10-14 17:04:11,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:11,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:11,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:11,018 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) [2024-10-14 17:04:11,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:04:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:11,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:11,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:04:11,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:11,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746241668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:11,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:11,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:11,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513641193] [2024-10-14 17:04:11,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:11,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:11,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:11,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:11,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2024-10-14 17:04:11,158 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) [2024-10-14 17:04:11,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:11,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2024-10-14 17:04:11,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:11,212 INFO L124 PetriNetUnfolderBase]: 15/151 cut-off events. [2024-10-14 17:04:11,212 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:04:11,213 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. [2024-10-14 17:04:11,214 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 11 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2024-10-14 17:04:11,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 222 flow [2024-10-14 17:04:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-10-14 17:04:11,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2024-10-14 17:04:11,218 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 198 flow. Second operand 3 states and 251 transitions. [2024-10-14 17:04:11,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 222 flow [2024-10-14 17:04:11,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:11,220 INFO L231 Difference]: Finished difference. Result has 92 places, 89 transitions, 194 flow [2024-10-14 17:04:11,221 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} [2024-10-14 17:04:11,221 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-10-14 17:04:11,222 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 89 transitions, 194 flow [2024-10-14 17:04:11,222 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) [2024-10-14 17:04:11,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:11,222 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] [2024-10-14 17:04:11,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 17:04:11,423 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 [2024-10-14 17:04:11,424 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)] === [2024-10-14 17:04:11,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash -857199266, now seen corresponding path program 1 times [2024-10-14 17:04:11,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:11,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370850216] [2024-10-14 17:04:11,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:11,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:11,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:11,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370850216] [2024-10-14 17:04:11,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370850216] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:11,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669829741] [2024-10-14 17:04:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:11,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:11,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:11,548 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) [2024-10-14 17:04:11,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:04:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:11,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:11,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:04:11,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669829741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:11,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146832460] [2024-10-14 17:04:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:11,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:11,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2024-10-14 17:04:11,660 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) [2024-10-14 17:04:11,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:11,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2024-10-14 17:04:11,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:11,755 INFO L124 PetriNetUnfolderBase]: 15/153 cut-off events. [2024-10-14 17:04:11,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:11,756 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. [2024-10-14 17:04:11,757 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 11 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2024-10-14 17:04:11,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 89 transitions, 218 flow [2024-10-14 17:04:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-10-14 17:04:11,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2024-10-14 17:04:11,764 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 194 flow. Second operand 3 states and 251 transitions. [2024-10-14 17:04:11,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 89 transitions, 218 flow [2024-10-14 17:04:11,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:11,770 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 191 flow [2024-10-14 17:04:11,771 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} [2024-10-14 17:04:11,772 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 0 predicate places. [2024-10-14 17:04:11,772 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 191 flow [2024-10-14 17:04:11,772 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) [2024-10-14 17:04:11,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:11,774 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] [2024-10-14 17:04:11,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:04:11,974 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 [2024-10-14 17:04:11,975 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)] === [2024-10-14 17:04:11,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2011547939, now seen corresponding path program 1 times [2024-10-14 17:04:11,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:11,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377574434] [2024-10-14 17:04:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:11,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:12,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377574434] [2024-10-14 17:04:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377574434] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:12,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756092422] [2024-10-14 17:04:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:12,096 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) [2024-10-14 17:04:12,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:04:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:12,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:12,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 17:04:12,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:12,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756092422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:12,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:12,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:12,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284886505] [2024-10-14 17:04:12,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:12,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:12,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:12,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:12,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:12,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-10-14 17:04:12,197 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) [2024-10-14 17:04:12,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:12,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-10-14 17:04:12,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:12,235 INFO L124 PetriNetUnfolderBase]: 18/201 cut-off events. [2024-10-14 17:04:12,235 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:04:12,236 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. [2024-10-14 17:04:12,237 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 14 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-10-14 17:04:12,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 91 transitions, 237 flow [2024-10-14 17:04:12,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-10-14 17:04:12,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2024-10-14 17:04:12,239 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 191 flow. Second operand 3 states and 252 transitions. [2024-10-14 17:04:12,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 91 transitions, 237 flow [2024-10-14 17:04:12,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:12,241 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 206 flow [2024-10-14 17:04:12,241 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} [2024-10-14 17:04:12,242 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-10-14 17:04:12,242 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 206 flow [2024-10-14 17:04:12,243 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) [2024-10-14 17:04:12,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:12,243 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] [2024-10-14 17:04:12,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:04:12,443 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 [2024-10-14 17:04:12,444 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)] === [2024-10-14 17:04:12,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:12,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2034720996, now seen corresponding path program 1 times [2024-10-14 17:04:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:12,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576216621] [2024-10-14 17:04:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:12,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:12,512 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:12,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:12,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576216621] [2024-10-14 17:04:12,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576216621] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:12,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553643754] [2024-10-14 17:04:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:12,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:12,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:12,515 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) [2024-10-14 17:04:12,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 17:04:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:12,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:12,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 17:04:12,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:12,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553643754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:12,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:12,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:12,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783964268] [2024-10-14 17:04:12,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:12,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:12,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-10-14 17:04:12,625 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) [2024-10-14 17:04:12,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:12,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-10-14 17:04:12,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:12,666 INFO L124 PetriNetUnfolderBase]: 28/293 cut-off events. [2024-10-14 17:04:12,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:12,667 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. [2024-10-14 17:04:12,668 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 14 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2024-10-14 17:04:12,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 255 flow [2024-10-14 17:04:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:12,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-10-14 17:04:12,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-10-14 17:04:12,670 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 206 flow. Second operand 3 states and 253 transitions. [2024-10-14 17:04:12,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 255 flow [2024-10-14 17:04:12,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:12,673 INFO L231 Difference]: Finished difference. Result has 93 places, 90 transitions, 226 flow [2024-10-14 17:04:12,673 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} [2024-10-14 17:04:12,674 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2024-10-14 17:04:12,674 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 226 flow [2024-10-14 17:04:12,675 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) [2024-10-14 17:04:12,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:12,675 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] [2024-10-14 17:04:12,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 17:04:12,875 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 [2024-10-14 17:04:12,876 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-14 17:04:12,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1197608942, now seen corresponding path program 1 times [2024-10-14 17:04:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587167276] [2024-10-14 17:04:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:12,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:12,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:12,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587167276] [2024-10-14 17:04:12,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587167276] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:12,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673120000] [2024-10-14 17:04:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:12,941 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) [2024-10-14 17:04:12,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 17:04:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:13,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:13,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:04:13,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:13,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673120000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:13,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:13,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215375851] [2024-10-14 17:04:13,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:13,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:13,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:13,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:13,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:13,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-10-14 17:04:13,042 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) [2024-10-14 17:04:13,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:13,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-10-14 17:04:13,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:13,115 INFO L124 PetriNetUnfolderBase]: 46/395 cut-off events. [2024-10-14 17:04:13,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:13,116 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. [2024-10-14 17:04:13,118 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 17 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2024-10-14 17:04:13,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 292 flow [2024-10-14 17:04:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:13,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-10-14 17:04:13,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9384057971014492 [2024-10-14 17:04:13,119 INFO L175 Difference]: Start difference. First operand has 93 places, 90 transitions, 226 flow. Second operand 3 states and 259 transitions. [2024-10-14 17:04:13,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 100 transitions, 292 flow [2024-10-14 17:04:13,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:13,122 INFO L231 Difference]: Finished difference. Result has 96 places, 96 transitions, 274 flow [2024-10-14 17:04:13,122 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} [2024-10-14 17:04:13,123 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2024-10-14 17:04:13,123 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 96 transitions, 274 flow [2024-10-14 17:04:13,124 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) [2024-10-14 17:04:13,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:13,124 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] [2024-10-14 17:04:13,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 17:04:13,324 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 [2024-10-14 17:04:13,325 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-10-14 17:04:13,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:13,326 INFO L85 PathProgramCache]: Analyzing trace with hash -640616272, now seen corresponding path program 1 times [2024-10-14 17:04:13,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:13,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360473661] [2024-10-14 17:04:13,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:13,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:13,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:13,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:13,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360473661] [2024-10-14 17:04:13,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360473661] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:13,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648802815] [2024-10-14 17:04:13,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:13,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:13,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:13,397 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) [2024-10-14 17:04:13,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 17:04:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:13,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:13,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:04:13,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:13,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648802815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:13,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:13,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:13,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523591874] [2024-10-14 17:04:13,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:13,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:13,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:13,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:13,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:13,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-10-14 17:04:13,496 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) [2024-10-14 17:04:13,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:13,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-10-14 17:04:13,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:13,549 INFO L124 PetriNetUnfolderBase]: 61/460 cut-off events. [2024-10-14 17:04:13,549 INFO L125 PetriNetUnfolderBase]: For 103/108 co-relation queries the response was YES. [2024-10-14 17:04:13,551 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. [2024-10-14 17:04:13,554 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 16 selfloop transitions, 7 changer transitions 2/103 dead transitions. [2024-10-14 17:04:13,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 103 transitions, 346 flow [2024-10-14 17:04:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-10-14 17:04:13,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9202898550724637 [2024-10-14 17:04:13,556 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 274 flow. Second operand 3 states and 254 transitions. [2024-10-14 17:04:13,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 103 transitions, 346 flow [2024-10-14 17:04:13,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 103 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:04:13,561 INFO L231 Difference]: Finished difference. Result has 98 places, 100 transitions, 314 flow [2024-10-14 17:04:13,561 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} [2024-10-14 17:04:13,563 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 7 predicate places. [2024-10-14 17:04:13,563 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 100 transitions, 314 flow [2024-10-14 17:04:13,563 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) [2024-10-14 17:04:13,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:13,563 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] [2024-10-14 17:04:13,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 17:04:13,768 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 [2024-10-14 17:04:13,768 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)] === [2024-10-14 17:04:13,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1738734521, now seen corresponding path program 1 times [2024-10-14 17:04:13,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:13,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820514808] [2024-10-14 17:04:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:13,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:13,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820514808] [2024-10-14 17:04:13,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820514808] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:13,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786721836] [2024-10-14 17:04:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:13,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:13,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:13,857 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) [2024-10-14 17:04:13,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 17:04:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:13,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:04:13,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:04:13,936 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:13,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786721836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:13,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:13,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:04:13,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11089813] [2024-10-14 17:04:13,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:13,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:13,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:13,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:13,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 92 [2024-10-14 17:04:13,962 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) [2024-10-14 17:04:13,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:13,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 92 [2024-10-14 17:04:13,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:14,023 INFO L124 PetriNetUnfolderBase]: 79/520 cut-off events. [2024-10-14 17:04:14,024 INFO L125 PetriNetUnfolderBase]: For 237/244 co-relation queries the response was YES. [2024-10-14 17:04:14,025 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. [2024-10-14 17:04:14,026 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 17 selfloop transitions, 7 changer transitions 7/107 dead transitions. [2024-10-14 17:04:14,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 400 flow [2024-10-14 17:04:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-10-14 17:04:14,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9057971014492754 [2024-10-14 17:04:14,028 INFO L175 Difference]: Start difference. First operand has 98 places, 100 transitions, 314 flow. Second operand 3 states and 250 transitions. [2024-10-14 17:04:14,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 400 flow [2024-10-14 17:04:14,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:04:14,033 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 332 flow [2024-10-14 17:04:14,034 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} [2024-10-14 17:04:14,035 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2024-10-14 17:04:14,036 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 332 flow [2024-10-14 17:04:14,037 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) [2024-10-14 17:04:14,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:14,038 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] [2024-10-14 17:04:14,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 17:04:14,238 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 [2024-10-14 17:04:14,239 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)] === [2024-10-14 17:04:14,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1976075803, now seen corresponding path program 1 times [2024-10-14 17:04:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582837904] [2024-10-14 17:04:14,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:14,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582837904] [2024-10-14 17:04:14,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582837904] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:14,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364154914] [2024-10-14 17:04:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:14,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:14,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:14,333 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) [2024-10-14 17:04:14,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 17:04:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:14,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:04:14,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:14,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:14,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364154914] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:14,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:14,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:04:14,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123475190] [2024-10-14 17:04:14,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:14,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:14,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:04:14,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2024-10-14 17:04:14,564 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) [2024-10-14 17:04:14,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:14,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2024-10-14 17:04:14,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:14,709 INFO L124 PetriNetUnfolderBase]: 40/464 cut-off events. [2024-10-14 17:04:14,709 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-10-14 17:04:14,710 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. [2024-10-14 17:04:14,711 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 15 selfloop transitions, 13 changer transitions 0/110 dead transitions. [2024-10-14 17:04:14,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 416 flow [2024-10-14 17:04:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:04:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:04:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 857 transitions. [2024-10-14 17:04:14,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468379446640316 [2024-10-14 17:04:14,716 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 332 flow. Second operand 11 states and 857 transitions. [2024-10-14 17:04:14,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 416 flow [2024-10-14 17:04:14,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 110 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:04:14,721 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 392 flow [2024-10-14 17:04:14,722 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} [2024-10-14 17:04:14,723 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 20 predicate places. [2024-10-14 17:04:14,723 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 392 flow [2024-10-14 17:04:14,724 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) [2024-10-14 17:04:14,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:14,724 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] [2024-10-14 17:04:14,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 17:04:14,928 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 [2024-10-14 17:04:14,929 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)] === [2024-10-14 17:04:14,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash -227121693, now seen corresponding path program 2 times [2024-10-14 17:04:14,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:14,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484436623] [2024-10-14 17:04:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-14 17:04:15,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:15,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484436623] [2024-10-14 17:04:15,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484436623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:15,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:04:15,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:04:15,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632646847] [2024-10-14 17:04:15,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:15,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 17:04:15,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 17:04:15,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 17:04:15,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 92 [2024-10-14 17:04:15,102 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) [2024-10-14 17:04:15,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:15,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 92 [2024-10-14 17:04:15,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:15,282 INFO L124 PetriNetUnfolderBase]: 58/797 cut-off events. [2024-10-14 17:04:15,282 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-10-14 17:04:15,284 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. [2024-10-14 17:04:15,285 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 13 selfloop transitions, 11 changer transitions 8/130 dead transitions. [2024-10-14 17:04:15,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 130 transitions, 504 flow [2024-10-14 17:04:15,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 17:04:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 17:04:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 601 transitions. [2024-10-14 17:04:15,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9332298136645962 [2024-10-14 17:04:15,288 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 392 flow. Second operand 7 states and 601 transitions. [2024-10-14 17:04:15,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 130 transitions, 504 flow [2024-10-14 17:04:15,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 492 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:15,293 INFO L231 Difference]: Finished difference. Result has 118 places, 115 transitions, 429 flow [2024-10-14 17:04:15,293 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} [2024-10-14 17:04:15,294 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 27 predicate places. [2024-10-14 17:04:15,294 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 115 transitions, 429 flow [2024-10-14 17:04:15,294 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) [2024-10-14 17:04:15,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:15,295 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] [2024-10-14 17:04:15,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:04:15,295 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)] === [2024-10-14 17:04:15,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2111580457, now seen corresponding path program 1 times [2024-10-14 17:04:15,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:15,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290445347] [2024-10-14 17:04:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:15,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 17:04:15,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:15,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290445347] [2024-10-14 17:04:15,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290445347] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:15,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803005465] [2024-10-14 17:04:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:15,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:15,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:15,455 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) [2024-10-14 17:04:15,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 17:04:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:15,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 17:04:15,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 17:04:15,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 17:04:15,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803005465] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:15,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:15,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-10-14 17:04:15,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396037136] [2024-10-14 17:04:15,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:15,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 17:04:15,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:15,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 17:04:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-14 17:04:15,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 92 [2024-10-14 17:04:15,740 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) [2024-10-14 17:04:15,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:15,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 92 [2024-10-14 17:04:15,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:15,930 INFO L124 PetriNetUnfolderBase]: 58/761 cut-off events. [2024-10-14 17:04:15,931 INFO L125 PetriNetUnfolderBase]: For 309/315 co-relation queries the response was YES. [2024-10-14 17:04:15,932 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. [2024-10-14 17:04:15,934 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 21 selfloop transitions, 20 changer transitions 0/128 dead transitions. [2024-10-14 17:04:15,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 128 transitions, 569 flow [2024-10-14 17:04:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 17:04:15,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-14 17:04:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1332 transitions. [2024-10-14 17:04:15,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8516624040920716 [2024-10-14 17:04:15,937 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 429 flow. Second operand 17 states and 1332 transitions. [2024-10-14 17:04:15,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 128 transitions, 569 flow [2024-10-14 17:04:15,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 567 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:15,941 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 560 flow [2024-10-14 17:04:15,941 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} [2024-10-14 17:04:15,942 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 46 predicate places. [2024-10-14 17:04:15,942 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 560 flow [2024-10-14 17:04:15,943 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) [2024-10-14 17:04:15,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:15,943 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] [2024-10-14 17:04:15,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 17:04:16,144 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 [2024-10-14 17:04:16,144 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)] === [2024-10-14 17:04:16,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:16,145 INFO L85 PathProgramCache]: Analyzing trace with hash -279629298, now seen corresponding path program 1 times [2024-10-14 17:04:16,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:16,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615775980] [2024-10-14 17:04:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:16,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-14 17:04:16,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:16,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615775980] [2024-10-14 17:04:16,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615775980] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:16,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478158638] [2024-10-14 17:04:16,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:16,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:16,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:16,307 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) [2024-10-14 17:04:16,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 17:04:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:16,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:04:16,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-14 17:04:16,452 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-14 17:04:16,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478158638] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:16,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:16,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-10-14 17:04:16,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411671962] [2024-10-14 17:04:16,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:16,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:04:16,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:16,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:04:16,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:04:16,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 92 [2024-10-14 17:04:16,622 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) [2024-10-14 17:04:16,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:16,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 92 [2024-10-14 17:04:16,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:16,904 INFO L124 PetriNetUnfolderBase]: 64/772 cut-off events. [2024-10-14 17:04:16,904 INFO L125 PetriNetUnfolderBase]: For 549/555 co-relation queries the response was YES. [2024-10-14 17:04:16,906 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. [2024-10-14 17:04:16,908 INFO L140 encePairwiseOnDemand]: 83/92 looper letters, 29 selfloop transitions, 45 changer transitions 1/158 dead transitions. [2024-10-14 17:04:16,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 906 flow [2024-10-14 17:04:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:04:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:04:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1613 transitions. [2024-10-14 17:04:16,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348861283643892 [2024-10-14 17:04:16,913 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 560 flow. Second operand 21 states and 1613 transitions. [2024-10-14 17:04:16,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 906 flow [2024-10-14 17:04:16,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 888 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-14 17:04:16,919 INFO L231 Difference]: Finished difference. Result has 156 places, 146 transitions, 823 flow [2024-10-14 17:04:16,919 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} [2024-10-14 17:04:16,920 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 65 predicate places. [2024-10-14 17:04:16,920 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 146 transitions, 823 flow [2024-10-14 17:04:16,920 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) [2024-10-14 17:04:16,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:16,921 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] [2024-10-14 17:04:16,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 17:04:17,124 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 [2024-10-14 17:04:17,125 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)] === [2024-10-14 17:04:17,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:17,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2019335057, now seen corresponding path program 2 times [2024-10-14 17:04:17,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:17,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984656776] [2024-10-14 17:04:17,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:17,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:04:17,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984656776] [2024-10-14 17:04:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984656776] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465443523] [2024-10-14 17:04:17,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:04:17,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:17,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:17,396 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) [2024-10-14 17:04:17,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 17:04:17,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:04:17,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:17,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 17:04:17,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:04:17,606 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:04:17,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465443523] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:17,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:17,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2024-10-14 17:04:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89063327] [2024-10-14 17:04:17,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:17,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 17:04:17,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:17,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 17:04:17,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 17:04:17,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2024-10-14 17:04:17,826 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) [2024-10-14 17:04:17,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:17,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2024-10-14 17:04:17,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:18,089 INFO L124 PetriNetUnfolderBase]: 37/455 cut-off events. [2024-10-14 17:04:18,089 INFO L125 PetriNetUnfolderBase]: For 499/501 co-relation queries the response was YES. [2024-10-14 17:04:18,090 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. [2024-10-14 17:04:18,091 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 35 selfloop transitions, 34 changer transitions 0/153 dead transitions. [2024-10-14 17:04:18,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 153 transitions, 1011 flow [2024-10-14 17:04:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:04:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:04:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1623 transitions. [2024-10-14 17:04:18,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8400621118012422 [2024-10-14 17:04:18,095 INFO L175 Difference]: Start difference. First operand has 156 places, 146 transitions, 823 flow. Second operand 21 states and 1623 transitions. [2024-10-14 17:04:18,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 153 transitions, 1011 flow [2024-10-14 17:04:18,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 153 transitions, 911 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-10-14 17:04:18,103 INFO L231 Difference]: Finished difference. Result has 172 places, 146 transitions, 860 flow [2024-10-14 17:04:18,103 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} [2024-10-14 17:04:18,104 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 81 predicate places. [2024-10-14 17:04:18,105 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 146 transitions, 860 flow [2024-10-14 17:04:18,105 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) [2024-10-14 17:04:18,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:18,106 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] [2024-10-14 17:04:18,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 17:04:18,306 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 [2024-10-14 17:04:18,307 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)] === [2024-10-14 17:04:18,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1843761931, now seen corresponding path program 1 times [2024-10-14 17:04:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:18,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568460003] [2024-10-14 17:04:18,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:18,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:04:18,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:04:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:04:18,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:04:18,404 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:04:18,405 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2024-10-14 17:04:18,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-10-14 17:04:18,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-10-14 17:04:18,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-10-14 17:04:18,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-10-14 17:04:18,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-10-14 17:04:18,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-10-14 17:04:18,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-10-14 17:04:18,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-10-14 17:04:18,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-10-14 17:04:18,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2024-10-14 17:04:18,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-10-14 17:04:18,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-10-14 17:04:18,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-10-14 17:04:18,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-10-14 17:04:18,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:04:18,409 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:04:18,497 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 17:04:18,497 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 17:04:18,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:04:18 BasicIcfg [2024-10-14 17:04:18,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 17:04:18,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 17:04:18,503 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 17:04:18,503 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 17:04:18,504 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:10" (3/4) ... [2024-10-14 17:04:18,506 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 17:04:18,507 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 17:04:18,507 INFO L158 Benchmark]: Toolchain (without parser) took 9494.91ms. Allocated memory was 142.6MB in the beginning and 224.4MB in the end (delta: 81.8MB). Free memory was 85.6MB in the beginning and 139.1MB in the end (delta: -53.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-10-14 17:04:18,508 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 102.2MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:04:18,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.53ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 85.2MB in the beginning and 154.5MB in the end (delta: -69.2MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-10-14 17:04:18,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 186.6MB. Free memory was 154.5MB in the beginning and 152.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 17:04:18,508 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 186.6MB. Free memory was 152.4MB in the beginning and 150.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:04:18,509 INFO L158 Benchmark]: RCFGBuilder took 478.96ms. Allocated memory is still 186.6MB. Free memory was 150.3MB in the beginning and 134.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 17:04:18,509 INFO L158 Benchmark]: TraceAbstraction took 8297.76ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 133.5MB in the beginning and 140.1MB in the end (delta: -6.7MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2024-10-14 17:04:18,509 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 224.4MB. Free memory was 140.1MB in the beginning and 139.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:04:18,511 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 102.2MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.53ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 85.2MB in the beginning and 154.5MB in the end (delta: -69.2MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 186.6MB. Free memory was 154.5MB in the beginning and 152.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.59ms. Allocated memory is still 186.6MB. Free memory was 152.4MB in the beginning and 150.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.96ms. Allocated memory is still 186.6MB. Free memory was 150.3MB in the beginning and 134.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8297.76ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 133.5MB in the beginning and 140.1MB in the end (delta: -6.7MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 224.4MB. Free memory was 140.1MB in the beginning and 139.1MB in the end (delta: 1.0MB). There was no memory consumed. 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: 8.1s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, 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, 0.5s 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1400 NumberOfCodeBlocks, 1400 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1574 ConstructedInterpolants, 0 QuantifiedInterpolants, 2822 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! [2024-10-14 17:04:18,541 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