./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:48:55,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:48:55,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:48:55,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:48:55,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:48:55,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:48:55,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:48:55,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:48:55,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:48:55,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:48:55,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:48:55,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:48:55,829 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:48:55,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:48:55,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:48:55,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:48:55,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:48:55,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:48:55,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:48:55,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:48:55,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:48:55,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:48:55,838 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:48:55,838 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:48:55,838 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:48:55,839 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:48:55,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:48:55,839 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:48:55,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:48:55,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:48:55,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:48:55,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:48:55,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:48:55,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:48:55,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:48:55,842 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:48:55,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:48:55,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:48:55,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:48:55,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:48:55,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:48:55,844 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde [2024-11-19 05:48:56,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:48:56,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:48:56,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:48:56,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:48:56,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:48:56,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2024-11-19 05:48:57,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:48:57,903 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:48:57,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_44-malloc_sound.i [2024-11-19 05:48:57,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47345cae4/bebe74dcd57249d6b2f025cd42b20c4e/FLAG07ed0f127 [2024-11-19 05:48:58,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47345cae4/bebe74dcd57249d6b2f025cd42b20c4e [2024-11-19 05:48:58,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:48:58,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:48:58,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:48:58,199 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:48:58,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:48:58,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e06195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58, skipping insertion in model container [2024-11-19 05:48:58,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:48:58,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:48:58,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:48:58,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:48:58,860 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:48:58,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58 WrapperNode [2024-11-19 05:48:58,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:48:58,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:48:58,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:48:58,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:48:58,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,920 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-11-19 05:48:58,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:48:58,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:48:58,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:48:58,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:48:58,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:48:58,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:48:58,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:48:58,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:48:58,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (1/1) ... [2024-11-19 05:48:58,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:48:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:48:59,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:48:59,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:48:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-19 05:48:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-19 05:48:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:48:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:48:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 05:48:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:48:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:48:59,062 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:48:59,192 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:48:59,193 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:48:59,381 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:48:59,381 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:48:59,418 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:48:59,419 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 05:48:59,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:59 BoogieIcfgContainer [2024-11-19 05:48:59,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:48:59,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:48:59,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:48:59,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:48:59,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:48:58" (1/3) ... [2024-11-19 05:48:59,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f5f367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:48:59, skipping insertion in model container [2024-11-19 05:48:59,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:58" (2/3) ... [2024-11-19 05:48:59,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f5f367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:48:59, skipping insertion in model container [2024-11-19 05:48:59,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:59" (3/3) ... [2024-11-19 05:48:59,430 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2024-11-19 05:48:59,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:48:59,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-19 05:48:59,447 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:48:59,509 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:48:59,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 188 flow [2024-11-19 05:48:59,594 INFO L124 PetriNetUnfolderBase]: 4/91 cut-off events. [2024-11-19 05:48:59,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:48:59,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 4/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 163 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-19 05:48:59,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 92 transitions, 188 flow [2024-11-19 05:48:59,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 185 flow [2024-11-19 05:48:59,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:48:59,620 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;@235ba0d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:48:59,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-19 05:48:59,629 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:48:59,630 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-11-19 05:48:59,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:48:59,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:59,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:59,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:59,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:59,639 INFO L85 PathProgramCache]: Analyzing trace with hash 644524114, now seen corresponding path program 1 times [2024-11-19 05:48:59,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:59,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689691616] [2024-11-19 05:48:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:59,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:59,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:59,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689691616] [2024-11-19 05:48:59,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689691616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:59,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:59,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:48:59,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543696469] [2024-11-19 05:48:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:59,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:48:59,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:59,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:48:59,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:48:59,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-19 05:48:59,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:59,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:59,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-19 05:48:59,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:00,057 INFO L124 PetriNetUnfolderBase]: 9/165 cut-off events. [2024-11-19 05:49:00,057 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:00,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 165 events. 9/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 385 event pairs, 6 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 134. Up to 26 conditions per place. [2024-11-19 05:49:00,063 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 12 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-11-19 05:49:00,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 213 flow [2024-11-19 05:49:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:00,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-19 05:49:00,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-19 05:49:00,081 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 185 flow. Second operand 3 states and 253 transitions. [2024-11-19 05:49:00,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 213 flow [2024-11-19 05:49:00,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:00,093 INFO L231 Difference]: Finished difference. Result has 93 places, 91 transitions, 198 flow [2024-11-19 05:49:00,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=93, PETRI_TRANSITIONS=91} [2024-11-19 05:49:00,100 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2024-11-19 05:49:00,102 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 91 transitions, 198 flow [2024-11-19 05:49:00,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:00,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:00,103 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:00,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:49:00,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:00,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1080794383, now seen corresponding path program 1 times [2024-11-19 05:49:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:00,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592651518] [2024-11-19 05:49:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:00,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:00,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592651518] [2024-11-19 05:49:00,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592651518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:00,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008833595] [2024-11-19 05:49:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:00,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:00,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:00,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:00,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:49:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:00,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:00,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:49:00,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:00,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008833595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:00,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:00,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:00,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543636172] [2024-11-19 05:49:00,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:00,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:00,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:00,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:00,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:00,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2024-11-19 05:49:00,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:00,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:00,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2024-11-19 05:49:00,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:00,518 INFO L124 PetriNetUnfolderBase]: 15/151 cut-off events. [2024-11-19 05:49:00,519 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:00,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 151 events. 15/151 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 415 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 170. Up to 30 conditions per place. [2024-11-19 05:49:00,520 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 11 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2024-11-19 05:49:00,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 222 flow [2024-11-19 05:49:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-11-19 05:49:00,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2024-11-19 05:49:00,523 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 198 flow. Second operand 3 states and 251 transitions. [2024-11-19 05:49:00,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 222 flow [2024-11-19 05:49:00,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:00,530 INFO L231 Difference]: Finished difference. Result has 92 places, 89 transitions, 194 flow [2024-11-19 05:49:00,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=92, PETRI_TRANSITIONS=89} [2024-11-19 05:49:00,531 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-11-19 05:49:00,531 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 89 transitions, 194 flow [2024-11-19 05:49:00,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:00,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:00,532 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:00,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:00,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:00,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:00,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:00,738 INFO L85 PathProgramCache]: Analyzing trace with hash -857199266, now seen corresponding path program 1 times [2024-11-19 05:49:00,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:00,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964674204] [2024-11-19 05:49:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:00,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:00,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:00,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964674204] [2024-11-19 05:49:00,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964674204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:00,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663478970] [2024-11-19 05:49:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:00,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:00,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:00,863 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:00,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:49:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:00,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:00,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:00,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:49:00,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:00,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663478970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:00,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:00,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:00,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373780850] [2024-11-19 05:49:00,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:00,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:00,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:00,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:00,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:00,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 92 [2024-11-19 05:49:00,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:00,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:00,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 92 [2024-11-19 05:49:00,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:01,028 INFO L124 PetriNetUnfolderBase]: 15/153 cut-off events. [2024-11-19 05:49:01,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:01,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 153 events. 15/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 421 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 145. Up to 30 conditions per place. [2024-11-19 05:49:01,031 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 11 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2024-11-19 05:49:01,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 89 transitions, 218 flow [2024-11-19 05:49:01,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:01,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:01,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-11-19 05:49:01,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2024-11-19 05:49:01,038 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 194 flow. Second operand 3 states and 251 transitions. [2024-11-19 05:49:01,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 89 transitions, 218 flow [2024-11-19 05:49:01,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:01,041 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 191 flow [2024-11-19 05:49:01,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-19 05:49:01,042 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 0 predicate places. [2024-11-19 05:49:01,042 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 191 flow [2024-11-19 05:49:01,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:01,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:01,043 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:01,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:01,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-19 05:49:01,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:01,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2011547939, now seen corresponding path program 1 times [2024-11-19 05:49:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:01,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042211624] [2024-11-19 05:49:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:01,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:01,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:01,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042211624] [2024-11-19 05:49:01,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042211624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:01,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089287669] [2024-11-19 05:49:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:01,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:01,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:01,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:01,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 05:49:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:01,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:01,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 05:49:01,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089287669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:01,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:01,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:01,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741245365] [2024-11-19 05:49:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:01,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:01,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:01,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:01,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:01,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-19 05:49:01,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:01,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:01,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-19 05:49:01,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:01,518 INFO L124 PetriNetUnfolderBase]: 18/201 cut-off events. [2024-11-19 05:49:01,518 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:49:01,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 201 events. 18/201 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 671 event pairs, 10 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 146. Up to 35 conditions per place. [2024-11-19 05:49:01,520 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 14 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-11-19 05:49:01,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 91 transitions, 237 flow [2024-11-19 05:49:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-11-19 05:49:01,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2024-11-19 05:49:01,523 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 191 flow. Second operand 3 states and 252 transitions. [2024-11-19 05:49:01,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 91 transitions, 237 flow [2024-11-19 05:49:01,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:01,525 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 206 flow [2024-11-19 05:49:01,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-11-19 05:49:01,526 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-11-19 05:49:01,526 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 206 flow [2024-11-19 05:49:01,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:01,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:01,527 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:01,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 05:49:01,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:01,728 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:01,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2034720996, now seen corresponding path program 1 times [2024-11-19 05:49:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:01,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862917211] [2024-11-19 05:49:01,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:01,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:01,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:01,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862917211] [2024-11-19 05:49:01,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862917211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:01,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568752462] [2024-11-19 05:49:01,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:01,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:01,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:01,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:01,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 05:49:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:01,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:01,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 05:49:01,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:01,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568752462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:01,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:01,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:01,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966605894] [2024-11-19 05:49:01,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:01,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:01,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:01,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:01,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-19 05:49:01,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:01,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:01,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-19 05:49:01,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:02,008 INFO L124 PetriNetUnfolderBase]: 28/293 cut-off events. [2024-11-19 05:49:02,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:02,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 293 events. 28/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1201 event pairs, 13 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 286. Up to 48 conditions per place. [2024-11-19 05:49:02,012 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 14 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2024-11-19 05:49:02,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 255 flow [2024-11-19 05:49:02,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-19 05:49:02,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-19 05:49:02,014 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 206 flow. Second operand 3 states and 253 transitions. [2024-11-19 05:49:02,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 255 flow [2024-11-19 05:49:02,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:02,017 INFO L231 Difference]: Finished difference. Result has 93 places, 90 transitions, 226 flow [2024-11-19 05:49:02,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=93, PETRI_TRANSITIONS=90} [2024-11-19 05:49:02,021 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2024-11-19 05:49:02,021 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 226 flow [2024-11-19 05:49:02,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:02,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:02,023 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:02,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 05:49:02,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:02,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:02,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1197608942, now seen corresponding path program 1 times [2024-11-19 05:49:02,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:02,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592813834] [2024-11-19 05:49:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:02,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:02,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592813834] [2024-11-19 05:49:02,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592813834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435750638] [2024-11-19 05:49:02,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:02,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:02,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:02,295 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:02,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 05:49:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:02,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:02,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:02,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:49:02,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:02,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435750638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:02,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:02,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:02,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198329064] [2024-11-19 05:49:02,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:02,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:02,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:02,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:02,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:02,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-19 05:49:02,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:02,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:02,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-19 05:49:02,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:02,471 INFO L124 PetriNetUnfolderBase]: 46/395 cut-off events. [2024-11-19 05:49:02,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:02,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 395 events. 46/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2025 event pairs, 15 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 440. Up to 56 conditions per place. [2024-11-19 05:49:02,476 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 17 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2024-11-19 05:49:02,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 292 flow [2024-11-19 05:49:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-11-19 05:49:02,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9384057971014492 [2024-11-19 05:49:02,477 INFO L175 Difference]: Start difference. First operand has 93 places, 90 transitions, 226 flow. Second operand 3 states and 259 transitions. [2024-11-19 05:49:02,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 100 transitions, 292 flow [2024-11-19 05:49:02,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:02,485 INFO L231 Difference]: Finished difference. Result has 96 places, 96 transitions, 274 flow [2024-11-19 05:49:02,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=96, PETRI_TRANSITIONS=96} [2024-11-19 05:49:02,486 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2024-11-19 05:49:02,486 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 96 transitions, 274 flow [2024-11-19 05:49:02,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:02,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:02,487 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:02,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 05:49:02,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:02,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:02,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash -640616272, now seen corresponding path program 1 times [2024-11-19 05:49:02,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:02,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790163529] [2024-11-19 05:49:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:02,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:02,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790163529] [2024-11-19 05:49:02,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790163529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989725811] [2024-11-19 05:49:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:02,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:02,749 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:02,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 05:49:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:02,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:02,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:49:02,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:02,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989725811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:02,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:02,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:02,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519327589] [2024-11-19 05:49:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:02,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:02,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:02,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:02,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 92 [2024-11-19 05:49:02,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:02,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:02,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 92 [2024-11-19 05:49:02,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:02,942 INFO L124 PetriNetUnfolderBase]: 61/460 cut-off events. [2024-11-19 05:49:02,943 INFO L125 PetriNetUnfolderBase]: For 103/108 co-relation queries the response was YES. [2024-11-19 05:49:02,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 460 events. 61/460 cut-off events. For 103/108 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2573 event pairs, 23 based on Foata normal form. 3/442 useless extension candidates. Maximal degree in co-relation 524. Up to 103 conditions per place. [2024-11-19 05:49:02,950 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 16 selfloop transitions, 7 changer transitions 2/103 dead transitions. [2024-11-19 05:49:02,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 103 transitions, 346 flow [2024-11-19 05:49:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-11-19 05:49:02,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9202898550724637 [2024-11-19 05:49:02,952 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 274 flow. Second operand 3 states and 254 transitions. [2024-11-19 05:49:02,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 103 transitions, 346 flow [2024-11-19 05:49:02,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 103 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:02,973 INFO L231 Difference]: Finished difference. Result has 98 places, 100 transitions, 314 flow [2024-11-19 05:49:02,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=98, PETRI_TRANSITIONS=100} [2024-11-19 05:49:02,975 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 7 predicate places. [2024-11-19 05:49:02,975 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 100 transitions, 314 flow [2024-11-19 05:49:02,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:02,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:02,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:02,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:03,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:03,177 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:03,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1738734521, now seen corresponding path program 1 times [2024-11-19 05:49:03,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:03,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444072742] [2024-11-19 05:49:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:03,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:03,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:03,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444072742] [2024-11-19 05:49:03,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444072742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:03,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315427490] [2024-11-19 05:49:03,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:03,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:03,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:03,257 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:03,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 05:49:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:03,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:49:03,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:49:03,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:03,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315427490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:03,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:03,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:49:03,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536276991] [2024-11-19 05:49:03,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:03,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:03,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:03,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:03,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:03,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 92 [2024-11-19 05:49:03,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 100 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:03,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:03,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 92 [2024-11-19 05:49:03,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:03,446 INFO L124 PetriNetUnfolderBase]: 79/520 cut-off events. [2024-11-19 05:49:03,446 INFO L125 PetriNetUnfolderBase]: For 237/244 co-relation queries the response was YES. [2024-11-19 05:49:03,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 520 events. 79/520 cut-off events. For 237/244 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3024 event pairs, 27 based on Foata normal form. 2/503 useless extension candidates. Maximal degree in co-relation 718. Up to 128 conditions per place. [2024-11-19 05:49:03,449 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 17 selfloop transitions, 7 changer transitions 7/107 dead transitions. [2024-11-19 05:49:03,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 400 flow [2024-11-19 05:49:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:03,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-19 05:49:03,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9057971014492754 [2024-11-19 05:49:03,451 INFO L175 Difference]: Start difference. First operand has 98 places, 100 transitions, 314 flow. Second operand 3 states and 250 transitions. [2024-11-19 05:49:03,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 400 flow [2024-11-19 05:49:03,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:03,458 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 332 flow [2024-11-19 05:49:03,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=100, PETRI_TRANSITIONS=99} [2024-11-19 05:49:03,460 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2024-11-19 05:49:03,460 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 332 flow [2024-11-19 05:49:03,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:03,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:03,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:03,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 05:49:03,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:03,662 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:03,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:03,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1976075803, now seen corresponding path program 1 times [2024-11-19 05:49:03,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:03,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059497049] [2024-11-19 05:49:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:03,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:03,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059497049] [2024-11-19 05:49:03,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059497049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315397599] [2024-11-19 05:49:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:03,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:03,758 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:03,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 05:49:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:03,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:49:03,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:03,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:03,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315397599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:03,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:03,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:49:03,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752424919] [2024-11-19 05:49:03,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:03,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:03,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:03,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2024-11-19 05:49:03,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 77.1) internal successors, (771), 10 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:03,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:03,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2024-11-19 05:49:03,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:04,083 INFO L124 PetriNetUnfolderBase]: 40/464 cut-off events. [2024-11-19 05:49:04,084 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-19 05:49:04,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 464 events. 40/464 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2373 event pairs, 12 based on Foata normal form. 7/458 useless extension candidates. Maximal degree in co-relation 508. Up to 54 conditions per place. [2024-11-19 05:49:04,086 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 15 selfloop transitions, 13 changer transitions 0/110 dead transitions. [2024-11-19 05:49:04,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 416 flow [2024-11-19 05:49:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 05:49:04,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 05:49:04,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 857 transitions. [2024-11-19 05:49:04,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468379446640316 [2024-11-19 05:49:04,090 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 332 flow. Second operand 11 states and 857 transitions. [2024-11-19 05:49:04,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 416 flow [2024-11-19 05:49:04,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 110 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:04,095 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 392 flow [2024-11-19 05:49:04,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=392, PETRI_PLACES=111, PETRI_TRANSITIONS=108} [2024-11-19 05:49:04,096 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 20 predicate places. [2024-11-19 05:49:04,096 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 392 flow [2024-11-19 05:49:04,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.1) internal successors, (771), 10 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:04,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:04,097 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:04,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:04,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-19 05:49:04,302 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:04,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash -227121693, now seen corresponding path program 2 times [2024-11-19 05:49:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:04,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130383808] [2024-11-19 05:49:04,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:04,314 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:04,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 05:49:04,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:04,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130383808] [2024-11-19 05:49:04,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130383808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:04,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:04,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:04,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719165703] [2024-11-19 05:49:04,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:04,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 05:49:04,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:04,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 05:49:04,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:49:04,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 92 [2024-11-19 05:49:04,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:04,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:04,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 92 [2024-11-19 05:49:04,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:04,579 INFO L124 PetriNetUnfolderBase]: 58/797 cut-off events. [2024-11-19 05:49:04,579 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-19 05:49:04,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 797 events. 58/797 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5300 event pairs, 13 based on Foata normal form. 2/780 useless extension candidates. Maximal degree in co-relation 487. Up to 74 conditions per place. [2024-11-19 05:49:04,582 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 13 selfloop transitions, 11 changer transitions 8/130 dead transitions. [2024-11-19 05:49:04,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 130 transitions, 504 flow [2024-11-19 05:49:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 05:49:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 05:49:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 601 transitions. [2024-11-19 05:49:04,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9332298136645962 [2024-11-19 05:49:04,584 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 392 flow. Second operand 7 states and 601 transitions. [2024-11-19 05:49:04,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 130 transitions, 504 flow [2024-11-19 05:49:04,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 492 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:04,588 INFO L231 Difference]: Finished difference. Result has 118 places, 115 transitions, 429 flow [2024-11-19 05:49:04,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=429, PETRI_PLACES=118, PETRI_TRANSITIONS=115} [2024-11-19 05:49:04,589 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 27 predicate places. [2024-11-19 05:49:04,589 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 115 transitions, 429 flow [2024-11-19 05:49:04,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:04,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:04,590 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:04,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:49:04,590 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:04,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:04,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2111580457, now seen corresponding path program 1 times [2024-11-19 05:49:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700650420] [2024-11-19 05:49:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:49:04,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:04,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700650420] [2024-11-19 05:49:04,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700650420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:04,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295734486] [2024-11-19 05:49:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:04,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:04,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:04,721 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:04,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 05:49:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:04,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 05:49:04,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:49:04,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:49:04,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295734486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:04,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:04,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-19 05:49:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713513893] [2024-11-19 05:49:04,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:04,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 05:49:04,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:04,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 05:49:04,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-19 05:49:05,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 92 [2024-11-19 05:49:05,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 429 flow. Second operand has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:05,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:05,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 92 [2024-11-19 05:49:05,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:05,252 INFO L124 PetriNetUnfolderBase]: 58/761 cut-off events. [2024-11-19 05:49:05,253 INFO L125 PetriNetUnfolderBase]: For 309/315 co-relation queries the response was YES. [2024-11-19 05:49:05,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 761 events. 58/761 cut-off events. For 309/315 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4490 event pairs, 14 based on Foata normal form. 14/754 useless extension candidates. Maximal degree in co-relation 594. Up to 94 conditions per place. [2024-11-19 05:49:05,256 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 21 selfloop transitions, 20 changer transitions 0/128 dead transitions. [2024-11-19 05:49:05,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 128 transitions, 569 flow [2024-11-19 05:49:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 05:49:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 05:49:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1332 transitions. [2024-11-19 05:49:05,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8516624040920716 [2024-11-19 05:49:05,260 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 429 flow. Second operand 17 states and 1332 transitions. [2024-11-19 05:49:05,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 128 transitions, 569 flow [2024-11-19 05:49:05,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 567 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:05,265 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 560 flow [2024-11-19 05:49:05,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=560, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-19 05:49:05,266 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 46 predicate places. [2024-11-19 05:49:05,266 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 560 flow [2024-11-19 05:49:05,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 78.0) internal successors, (1092), 14 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:05,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:05,267 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:05,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 05:49:05,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:05,472 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:05,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash -279629298, now seen corresponding path program 1 times [2024-11-19 05:49:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:05,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893883330] [2024-11-19 05:49:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:05,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 05:49:05,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:05,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893883330] [2024-11-19 05:49:05,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893883330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:05,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007606211] [2024-11-19 05:49:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:05,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:05,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:05,641 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:05,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 05:49:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:05,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:49:05,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 05:49:05,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:05,892 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 05:49:05,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007606211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:05,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:05,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-19 05:49:05,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752572521] [2024-11-19 05:49:05,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:05,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 05:49:05,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:05,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 05:49:05,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-19 05:49:05,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 92 [2024-11-19 05:49:05,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 560 flow. Second operand has 15 states, 15 states have (on average 76.86666666666666) internal successors, (1153), 15 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:05,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:05,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 92 [2024-11-19 05:49:05,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:06,281 INFO L124 PetriNetUnfolderBase]: 64/772 cut-off events. [2024-11-19 05:49:06,282 INFO L125 PetriNetUnfolderBase]: For 549/555 co-relation queries the response was YES. [2024-11-19 05:49:06,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 772 events. 64/772 cut-off events. For 549/555 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3615 event pairs, 13 based on Foata normal form. 9/761 useless extension candidates. Maximal degree in co-relation 820. Up to 66 conditions per place. [2024-11-19 05:49:06,285 INFO L140 encePairwiseOnDemand]: 83/92 looper letters, 29 selfloop transitions, 45 changer transitions 1/158 dead transitions. [2024-11-19 05:49:06,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 906 flow [2024-11-19 05:49:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:49:06,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:49:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1613 transitions. [2024-11-19 05:49:06,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348861283643892 [2024-11-19 05:49:06,290 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 560 flow. Second operand 21 states and 1613 transitions. [2024-11-19 05:49:06,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 906 flow [2024-11-19 05:49:06,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 888 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-19 05:49:06,296 INFO L231 Difference]: Finished difference. Result has 156 places, 146 transitions, 823 flow [2024-11-19 05:49:06,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=823, PETRI_PLACES=156, PETRI_TRANSITIONS=146} [2024-11-19 05:49:06,297 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 65 predicate places. [2024-11-19 05:49:06,299 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 146 transitions, 823 flow [2024-11-19 05:49:06,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 76.86666666666666) internal successors, (1153), 15 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:06,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:06,300 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:06,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 05:49:06,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 05:49:06,500 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:06,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:06,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2019335057, now seen corresponding path program 2 times [2024-11-19 05:49:06,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:06,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938107316] [2024-11-19 05:49:06,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:06,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:06,522 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 05:49:06,523 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:49:06,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938107316] [2024-11-19 05:49:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938107316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552946736] [2024-11-19 05:49:06,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:06,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:06,729 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:06,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 05:49:06,859 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 05:49:06,860 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:06,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 05:49:06,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:49:06,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 135 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:49:07,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552946736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:07,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:07,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2024-11-19 05:49:07,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561926585] [2024-11-19 05:49:07,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:07,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 05:49:07,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 05:49:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-19 05:49:07,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2024-11-19 05:49:07,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 146 transitions, 823 flow. Second operand has 17 states, 17 states have (on average 77.52941176470588) internal successors, (1318), 17 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:07,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:07,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2024-11-19 05:49:07,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:07,469 INFO L124 PetriNetUnfolderBase]: 37/455 cut-off events. [2024-11-19 05:49:07,469 INFO L125 PetriNetUnfolderBase]: For 499/501 co-relation queries the response was YES. [2024-11-19 05:49:07,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 455 events. 37/455 cut-off events. For 499/501 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1578 event pairs, 5 based on Foata normal form. 1/446 useless extension candidates. Maximal degree in co-relation 752. Up to 53 conditions per place. [2024-11-19 05:49:07,472 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 35 selfloop transitions, 34 changer transitions 0/153 dead transitions. [2024-11-19 05:49:07,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 153 transitions, 1011 flow [2024-11-19 05:49:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:49:07,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:49:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1623 transitions. [2024-11-19 05:49:07,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8400621118012422 [2024-11-19 05:49:07,477 INFO L175 Difference]: Start difference. First operand has 156 places, 146 transitions, 823 flow. Second operand 21 states and 1623 transitions. [2024-11-19 05:49:07,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 153 transitions, 1011 flow [2024-11-19 05:49:07,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 153 transitions, 911 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-11-19 05:49:07,486 INFO L231 Difference]: Finished difference. Result has 172 places, 146 transitions, 860 flow [2024-11-19 05:49:07,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=860, PETRI_PLACES=172, PETRI_TRANSITIONS=146} [2024-11-19 05:49:07,487 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 81 predicate places. [2024-11-19 05:49:07,487 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 146 transitions, 860 flow [2024-11-19 05:49:07,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 77.52941176470588) internal successors, (1318), 17 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:07,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:07,489 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:07,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 05:49:07,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 05:49:07,689 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:49:07,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:07,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1843761931, now seen corresponding path program 1 times [2024-11-19 05:49:07,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:07,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220471396] [2024-11-19 05:49:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:07,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:49:07,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:49:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:49:07,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:49:07,797 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:49:07,798 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2024-11-19 05:49:07,800 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-19 05:49:07,800 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-19 05:49:07,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-19 05:49:07,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2024-11-19 05:49:07,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-19 05:49:07,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-19 05:49:07,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-19 05:49:07,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-19 05:49:07,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:49:07,803 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:07,899 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 05:49:07,899 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 05:49:07,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:49:07 BasicIcfg [2024-11-19 05:49:07,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 05:49:07,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 05:49:07,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 05:49:07,906 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 05:49:07,907 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:59" (3/4) ... [2024-11-19 05:49:07,908 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-19 05:49:07,974 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 05:49:07,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 05:49:07,974 INFO L158 Benchmark]: Toolchain (without parser) took 9777.20ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 99.2MB in the beginning and 108.6MB in the end (delta: -9.4MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,975 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 05:49:07,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 662.69ms. Allocated memory is still 167.8MB. Free memory was 98.8MB in the beginning and 122.1MB in the end (delta: -23.2MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.03ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,978 INFO L158 Benchmark]: Boogie Preprocessor took 41.14ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 118.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,978 INFO L158 Benchmark]: RCFGBuilder took 457.73ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 102.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,978 INFO L158 Benchmark]: TraceAbstraction took 8482.00ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 101.9MB in the beginning and 122.3MB in the end (delta: -20.4MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,978 INFO L158 Benchmark]: Witness Printer took 68.35ms. Allocated memory is still 257.9MB. Free memory was 122.3MB in the beginning and 108.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 05:49:07,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 662.69ms. Allocated memory is still 167.8MB. Free memory was 98.8MB in the beginning and 122.1MB in the end (delta: -23.2MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.03ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.14ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 118.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.73ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 102.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8482.00ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 101.9MB in the beginning and 122.3MB in the end (delta: -20.4MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Witness Printer took 68.35ms. Allocated memory is still 257.9MB. Free memory was 122.3MB in the beginning and 108.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1009]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; VAL [glob=0] [L988] 0 pthread_mutex_t *p, *q; VAL [glob=0, p={0:0}, q={0:0}] [L996] 0 pthread_t t1, t2; VAL [glob=0, p={0:0}, q={0:0}] [L997] 0 int i; VAL [glob=0, p={0:0}, q={0:0}] [L998] 0 pthread_mutex_t *a; VAL [glob=0, p={0:0}, q={0:0}] [L999] 0 i=0 VAL [glob=0, i=0, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [glob=0, i=0, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}] [L999] 0 i++ VAL [a={-2:0}, glob=0, i=1, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-2:0}, glob=0, i=1, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}] [L999] 0 i++ VAL [a={-3:0}, glob=0, i=2, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-3:0}, glob=0, i=2, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}] [L999] 0 i++ VAL [a={-4:0}, glob=0, i=3, p={0:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-4:0}, glob=0, i=3, p={0:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-5:0}, glob=0, i=3, p={0:0}, q={0:0}] [L1002] COND TRUE 0 i==3 VAL [a={-5:0}, glob=0, i=3, p={0:0}, q={0:0}] [L1003] 0 p = a VAL [a={-5:0}, glob=0, i=3, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-5:0}, glob=0, i=3, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-5:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-5:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-6:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-6:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-7:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-7:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}] [L999] 0 i++ VAL [a={-8:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L999] COND TRUE 0 i < 10 VAL [a={-8:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1004] COND TRUE 0 i==7 VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}] [L1005] 0 q = a VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={-9:0}] [L999] 0 i++ VAL [a={-9:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L999] COND TRUE 0 i < 10 VAL [a={-9:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}] [L999] 0 i++ VAL [a={-10:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L999] COND TRUE 0 i < 10 VAL [a={-10:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}] [L999] 0 i++ VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}] [L999] COND FALSE 0 !(i < 10) VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}] [L1007] FCALL, FORK 0 pthread_create(&t1, 0, f, 0) VAL [\old(x)={0:0}, a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1=-1] [L1008] 0 pthread_mutex_lock(p) VAL [\old(x)={0:0}, a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1=-1] [L990] 1 pthread_mutex_lock(q) VAL [\old(x)={0:0}, glob=0, p={-5:0}, q={-9:0}, x={0:0}] [L991] 1 glob++ VAL [\old(x)={0:0}, glob=0, p={-5:0}, q={-9:0}, x={0:0}] [L1009] 0 glob++ VAL [\old(x)={0:0}, a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1=-1, x={0:0}] [L991] 1 glob++ VAL [\old(x)={0:0}, glob=1, p={-5:0}, q={-9:0}, x={0:0}] [L1009] 0 glob++ VAL [\old(x)={0:0}, a={-11:0}, glob=1, i=10, p={-5:0}, q={-9:0}, t1=-1, x={0:0}] Now there is a data race on ~glob~0 between C: glob++ [991] and C: glob++ [1009] - UnprovableResult [Line: 990]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 992]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1008]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1003]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1009]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 881 IncrementalHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 102 mSDtfsCounter, 881 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1034 GetRequests, 903 SyntacticMatches, 10 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.9s 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, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1400 NumberOfCodeBlocks, 1370 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1574 ConstructedInterpolants, 0 QuantifiedInterpolants, 2823 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1509 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 1038/1596 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-19 05:49:08,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE