./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:23:13,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:23:13,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:23:13,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:23:13,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:23:13,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:23:13,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:23:13,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:23:13,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:23:13,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:23:13,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:23:13,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:23:13,627 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:23:13,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:23:13,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:23:13,628 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:23:13,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:23:13,629 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:23:13,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:23:13,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:23:13,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:23:13,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:23:13,630 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:23:13,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:23:13,630 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:23:13,631 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:23:13,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:23:13,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:23:13,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:23:13,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:23:13,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:23:13,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:23:13,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:23:13,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:23:13,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:23:13,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:23:13,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:23:13,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:23:13,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:23:13,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:23:13,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:23:13,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2024-10-24 15:23:13,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:23:13,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:23:13,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:23:13,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:23:13,817 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:23:13,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-10-24 15:23:15,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:23:15,216 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:23:15,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-10-24 15:23:15,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298a77b60/aad4264221db45e3bd3dbeaee07f02ca/FLAG0059d7611 [2024-10-24 15:23:15,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298a77b60/aad4264221db45e3bd3dbeaee07f02ca [2024-10-24 15:23:15,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:23:15,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:23:15,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:23:15,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:23:15,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:23:15,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18490620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15, skipping insertion in model container [2024-10-24 15:23:15,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:23:15,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:23:15,540 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:23:15,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:23:15,624 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:23:15,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15 WrapperNode [2024-10-24 15:23:15,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:23:15,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:23:15,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:23:15,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:23:15,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,673 INFO L138 Inliner]: procedures = 161, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 75 [2024-10-24 15:23:15,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:23:15,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:23:15,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:23:15,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:23:15,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:23:15,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:23:15,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:23:15,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:23:15,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (1/1) ... [2024-10-24 15:23:15,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:23:15,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:15,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:23:15,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:23:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:23:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:23:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:23:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:23:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:23:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:23:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:23:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:23:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:23:15,779 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:23:15,875 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:23:15,876 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:23:16,050 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:23:16,051 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:23:16,082 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:23:16,082 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 15:23:16,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:16 BoogieIcfgContainer [2024-10-24 15:23:16,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:23:16,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:23:16,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:23:16,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:23:16,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:23:15" (1/3) ... [2024-10-24 15:23:16,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fd4f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:23:16, skipping insertion in model container [2024-10-24 15:23:16,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:15" (2/3) ... [2024-10-24 15:23:16,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fd4f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:23:16, skipping insertion in model container [2024-10-24 15:23:16,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:16" (3/3) ... [2024-10-24 15:23:16,088 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2024-10-24 15:23:16,099 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:23:16,099 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-24 15:23:16,099 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:23:16,140 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:23:16,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 210 flow [2024-10-24 15:23:16,220 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2024-10-24 15:23:16,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:16,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-10-24 15:23:16,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 103 transitions, 210 flow [2024-10-24 15:23:16,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 102 transitions, 207 flow [2024-10-24 15:23:16,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:23:16,270 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;@777c09e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:23:16,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-24 15:23:16,283 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:23:16,285 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-24 15:23:16,285 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:16,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:16,286 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] [2024-10-24 15:23:16,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:16,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:16,290 INFO L85 PathProgramCache]: Analyzing trace with hash -374895960, now seen corresponding path program 1 times [2024-10-24 15:23:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:16,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124920322] [2024-10-24 15:23:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:16,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:16,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:16,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124920322] [2024-10-24 15:23:16,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124920322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:16,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:16,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:23:16,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187569062] [2024-10-24 15:23:16,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:16,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:16,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:16,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:16,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2024-10-24 15:23:16,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:16,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:16,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2024-10-24 15:23:16,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:16,677 INFO L124 PetriNetUnfolderBase]: 11/240 cut-off events. [2024-10-24 15:23:16,677 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:16,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 240 events. 11/240 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 591 event pairs, 10 based on Foata normal form. 1/222 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2024-10-24 15:23:16,682 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 12 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-10-24 15:23:16,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 235 flow [2024-10-24 15:23:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-24 15:23:16,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.919093851132686 [2024-10-24 15:23:16,695 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 207 flow. Second operand 3 states and 284 transitions. [2024-10-24 15:23:16,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 235 flow [2024-10-24 15:23:16,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:16,702 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 216 flow [2024-10-24 15:23:16,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2024-10-24 15:23:16,708 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2024-10-24 15:23:16,708 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 216 flow [2024-10-24 15:23:16,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:16,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:16,709 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] [2024-10-24 15:23:16,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:23:16,710 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:16,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:16,711 INFO L85 PathProgramCache]: Analyzing trace with hash 502389911, now seen corresponding path program 1 times [2024-10-24 15:23:16,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:16,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276277954] [2024-10-24 15:23:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:16,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:16,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:16,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276277954] [2024-10-24 15:23:16,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276277954] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:23:16,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886216700] [2024-10-24 15:23:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:16,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:16,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:16,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:23:16,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:23:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:16,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:23:16,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:23:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:16,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:23:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:17,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886216700] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:23:17,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:23:17,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:23:17,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188076112] [2024-10-24 15:23:17,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:23:17,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:23:17,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:17,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:23:17,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:23:17,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-24 15:23:17,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:17,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:17,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-24 15:23:17,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:17,187 INFO L124 PetriNetUnfolderBase]: 11/247 cut-off events. [2024-10-24 15:23:17,187 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:17,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 247 events. 11/247 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 587 event pairs, 10 based on Foata normal form. 2/230 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2024-10-24 15:23:17,189 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 16 selfloop transitions, 9 changer transitions 0/110 dead transitions. [2024-10-24 15:23:17,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-10-24 15:23:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:23:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:23:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2024-10-24 15:23:17,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2024-10-24 15:23:17,193 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 216 flow. Second operand 9 states and 801 transitions. [2024-10-24 15:23:17,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-10-24 15:23:17,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:17,195 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 264 flow [2024-10-24 15:23:17,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2024-10-24 15:23:17,196 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 12 predicate places. [2024-10-24 15:23:17,197 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 264 flow [2024-10-24 15:23:17,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:17,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:17,198 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:17,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 15:23:17,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:17,402 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:17,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash 371481399, now seen corresponding path program 2 times [2024-10-24 15:23:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311312615] [2024-10-24 15:23:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:17,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:17,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:17,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311312615] [2024-10-24 15:23:17,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311312615] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:23:17,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521461189] [2024-10-24 15:23:17,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:23:17,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:17,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:17,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:23:17,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:23:17,634 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:23:17,635 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:23:17,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:23:17,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:23:17,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:23:17,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-24 15:23:17,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:23:17,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-24 15:23:17,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:23:17,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-24 15:23:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:23:17,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:23:17,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521461189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:17,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:23:17,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-10-24 15:23:17,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166993036] [2024-10-24 15:23:17,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:17,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 15:23:17,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:17,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 15:23:17,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-24 15:23:18,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 103 [2024-10-24 15:23:18,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:18,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:18,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 103 [2024-10-24 15:23:18,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:18,354 INFO L124 PetriNetUnfolderBase]: 285/1031 cut-off events. [2024-10-24 15:23:18,354 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-24 15:23:18,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 1031 events. 285/1031 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6266 event pairs, 73 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1628. Up to 286 conditions per place. [2024-10-24 15:23:18,359 INFO L140 encePairwiseOnDemand]: 80/103 looper letters, 97 selfloop transitions, 43 changer transitions 0/218 dead transitions. [2024-10-24 15:23:18,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 218 transitions, 764 flow [2024-10-24 15:23:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 15:23:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 15:23:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 646 transitions. [2024-10-24 15:23:18,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8959778085991679 [2024-10-24 15:23:18,362 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 264 flow. Second operand 7 states and 646 transitions. [2024-10-24 15:23:18,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 218 transitions, 764 flow [2024-10-24 15:23:18,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 218 transitions, 758 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:18,368 INFO L231 Difference]: Finished difference. Result has 126 places, 154 transitions, 577 flow [2024-10-24 15:23:18,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=577, PETRI_PLACES=126, PETRI_TRANSITIONS=154} [2024-10-24 15:23:18,369 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 22 predicate places. [2024-10-24 15:23:18,369 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 154 transitions, 577 flow [2024-10-24 15:23:18,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:18,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:18,370 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:18,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 15:23:18,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 15:23:18,575 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:18,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2030826381, now seen corresponding path program 1 times [2024-10-24 15:23:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:18,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802982931] [2024-10-24 15:23:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:18,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:18,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802982931] [2024-10-24 15:23:18,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802982931] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:23:18,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299504693] [2024-10-24 15:23:18,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:18,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:18,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:18,669 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:23:18,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:23:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:18,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:23:18,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:23:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:18,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:23:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:18,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299504693] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:23:18,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:23:18,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:23:18,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903724363] [2024-10-24 15:23:18,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:23:18,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:23:18,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:18,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:23:18,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:23:18,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-24 15:23:18,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 154 transitions, 577 flow. Second operand has 18 states, 18 states have (on average 88.0) internal successors, (1584), 18 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:18,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:18,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-24 15:23:18,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:19,065 INFO L124 PetriNetUnfolderBase]: 127/780 cut-off events. [2024-10-24 15:23:19,065 INFO L125 PetriNetUnfolderBase]: For 136/151 co-relation queries the response was YES. [2024-10-24 15:23:19,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 780 events. 127/780 cut-off events. For 136/151 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4662 event pairs, 45 based on Foata normal form. 4/765 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2024-10-24 15:23:19,069 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 20 selfloop transitions, 21 changer transitions 0/172 dead transitions. [2024-10-24 15:23:19,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 172 transitions, 747 flow [2024-10-24 15:23:19,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:23:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:23:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1851 transitions. [2024-10-24 15:23:19,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.855755894590846 [2024-10-24 15:23:19,073 INFO L175 Difference]: Start difference. First operand has 126 places, 154 transitions, 577 flow. Second operand 21 states and 1851 transitions. [2024-10-24 15:23:19,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 172 transitions, 747 flow [2024-10-24 15:23:19,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 172 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:19,082 INFO L231 Difference]: Finished difference. Result has 150 places, 167 transitions, 706 flow [2024-10-24 15:23:19,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=706, PETRI_PLACES=150, PETRI_TRANSITIONS=167} [2024-10-24 15:23:19,082 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 46 predicate places. [2024-10-24 15:23:19,083 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 167 transitions, 706 flow [2024-10-24 15:23:19,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 88.0) internal successors, (1584), 18 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:19,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:19,083 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:19,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 15:23:19,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:19,288 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:19,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1820522061, now seen corresponding path program 2 times [2024-10-24 15:23:19,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:19,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841327766] [2024-10-24 15:23:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:19,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:19,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:19,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841327766] [2024-10-24 15:23:19,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841327766] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:23:19,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580161761] [2024-10-24 15:23:19,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:23:19,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:19,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:19,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:23:19,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 15:23:19,570 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:23:19,570 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:23:19,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 15:23:19,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:23:19,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:23:19,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-24 15:23:19,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:23:19,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-24 15:23:19,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:23:19,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-24 15:23:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 15:23:19,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:23:19,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580161761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:19,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:23:19,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2024-10-24 15:23:19,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129155686] [2024-10-24 15:23:19,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:19,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 15:23:19,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 15:23:19,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-10-24 15:23:19,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2024-10-24 15:23:19,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 167 transitions, 706 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:19,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:19,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2024-10-24 15:23:19,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:20,086 INFO L124 PetriNetUnfolderBase]: 141/842 cut-off events. [2024-10-24 15:23:20,087 INFO L125 PetriNetUnfolderBase]: For 147/169 co-relation queries the response was YES. [2024-10-24 15:23:20,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 842 events. 141/842 cut-off events. For 147/169 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5142 event pairs, 49 based on Foata normal form. 3/823 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2024-10-24 15:23:20,091 INFO L140 encePairwiseOnDemand]: 96/103 looper letters, 20 selfloop transitions, 6 changer transitions 0/174 dead transitions. [2024-10-24 15:23:20,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 174 transitions, 772 flow [2024-10-24 15:23:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 15:23:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 15:23:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 608 transitions. [2024-10-24 15:23:20,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8432732316227461 [2024-10-24 15:23:20,093 INFO L175 Difference]: Start difference. First operand has 150 places, 167 transitions, 706 flow. Second operand 7 states and 608 transitions. [2024-10-24 15:23:20,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 174 transitions, 772 flow [2024-10-24 15:23:20,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 174 transitions, 748 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 15:23:20,099 INFO L231 Difference]: Finished difference. Result has 149 places, 166 transitions, 692 flow [2024-10-24 15:23:20,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=692, PETRI_PLACES=149, PETRI_TRANSITIONS=166} [2024-10-24 15:23:20,101 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 45 predicate places. [2024-10-24 15:23:20,101 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 166 transitions, 692 flow [2024-10-24 15:23:20,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:20,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:20,102 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:20,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 15:23:20,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:20,303 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:20,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash 368504060, now seen corresponding path program 1 times [2024-10-24 15:23:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:20,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680766416] [2024-10-24 15:23:20,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680766416] [2024-10-24 15:23:20,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680766416] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:23:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820915328] [2024-10-24 15:23:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:20,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:20,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:20,513 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:23:20,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 15:23:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:20,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 15:23:20,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:23:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:20,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:23:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:20,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820915328] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:23:20,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:23:20,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-24 15:23:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788282450] [2024-10-24 15:23:20,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:23:20,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:23:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:23:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:23:20,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-24 15:23:20,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 166 transitions, 692 flow. Second operand has 23 states, 23 states have (on average 88.08695652173913) internal successors, (2026), 23 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:20,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:20,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-24 15:23:20,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:21,128 INFO L124 PetriNetUnfolderBase]: 127/794 cut-off events. [2024-10-24 15:23:21,129 INFO L125 PetriNetUnfolderBase]: For 253/268 co-relation queries the response was YES. [2024-10-24 15:23:21,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1588 conditions, 794 events. 127/794 cut-off events. For 253/268 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4656 event pairs, 45 based on Foata normal form. 3/779 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2024-10-24 15:23:21,133 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 23 selfloop transitions, 30 changer transitions 0/183 dead transitions. [2024-10-24 15:23:21,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 183 transitions, 920 flow [2024-10-24 15:23:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:23:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:23:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2636 transitions. [2024-10-24 15:23:21,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8530744336569579 [2024-10-24 15:23:21,138 INFO L175 Difference]: Start difference. First operand has 149 places, 166 transitions, 692 flow. Second operand 30 states and 2636 transitions. [2024-10-24 15:23:21,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 183 transitions, 920 flow [2024-10-24 15:23:21,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 183 transitions, 908 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 15:23:21,142 INFO L231 Difference]: Finished difference. Result has 176 places, 176 transitions, 832 flow [2024-10-24 15:23:21,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=832, PETRI_PLACES=176, PETRI_TRANSITIONS=176} [2024-10-24 15:23:21,144 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 72 predicate places. [2024-10-24 15:23:21,145 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 176 transitions, 832 flow [2024-10-24 15:23:21,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 88.08695652173913) internal successors, (2026), 23 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:21,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:21,146 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:21,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 15:23:21,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:23:21,350 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:21,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:21,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1806104845, now seen corresponding path program 2 times [2024-10-24 15:23:21,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:21,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857539468] [2024-10-24 15:23:21,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:21,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:23:21,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:21,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857539468] [2024-10-24 15:23:21,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857539468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:21,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:21,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:21,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971585237] [2024-10-24 15:23:21,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:21,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:21,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:21,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 103 [2024-10-24 15:23:21,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 176 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:21,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:21,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 103 [2024-10-24 15:23:21,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:22,062 INFO L124 PetriNetUnfolderBase]: 445/1452 cut-off events. [2024-10-24 15:23:22,063 INFO L125 PetriNetUnfolderBase]: For 726/760 co-relation queries the response was YES. [2024-10-24 15:23:22,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 1452 events. 445/1452 cut-off events. For 726/760 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9393 event pairs, 117 based on Foata normal form. 24/1453 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2024-10-24 15:23:22,070 INFO L140 encePairwiseOnDemand]: 86/103 looper letters, 109 selfloop transitions, 53 changer transitions 6/267 dead transitions. [2024-10-24 15:23:22,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 267 transitions, 1536 flow [2024-10-24 15:23:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2024-10-24 15:23:22,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2024-10-24 15:23:22,072 INFO L175 Difference]: Start difference. First operand has 176 places, 176 transitions, 832 flow. Second operand 6 states and 534 transitions. [2024-10-24 15:23:22,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 267 transitions, 1536 flow [2024-10-24 15:23:22,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 267 transitions, 1490 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-24 15:23:22,078 INFO L231 Difference]: Finished difference. Result has 168 places, 227 transitions, 1292 flow [2024-10-24 15:23:22,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=168, PETRI_TRANSITIONS=227} [2024-10-24 15:23:22,079 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 64 predicate places. [2024-10-24 15:23:22,080 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 227 transitions, 1292 flow [2024-10-24 15:23:22,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:22,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:22,080 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:22,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:23:22,080 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:22,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash 499443993, now seen corresponding path program 1 times [2024-10-24 15:23:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:22,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542280728] [2024-10-24 15:23:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:22,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:23:22,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:22,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542280728] [2024-10-24 15:23:22,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542280728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:22,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:22,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:22,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780716324] [2024-10-24 15:23:22,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:22,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:22,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:22,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:22,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 103 [2024-10-24 15:23:22,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 227 transitions, 1292 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:22,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:22,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 103 [2024-10-24 15:23:22,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:22,683 INFO L124 PetriNetUnfolderBase]: 255/1189 cut-off events. [2024-10-24 15:23:22,684 INFO L125 PetriNetUnfolderBase]: For 1031/1099 co-relation queries the response was YES. [2024-10-24 15:23:22,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 1189 events. 255/1189 cut-off events. For 1031/1099 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7981 event pairs, 57 based on Foata normal form. 9/1178 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2024-10-24 15:23:22,690 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2024-10-24 15:23:22,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 234 transitions, 1366 flow [2024-10-24 15:23:22,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2024-10-24 15:23:22,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8171521035598706 [2024-10-24 15:23:22,693 INFO L175 Difference]: Start difference. First operand has 168 places, 227 transitions, 1292 flow. Second operand 6 states and 505 transitions. [2024-10-24 15:23:22,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 234 transitions, 1366 flow [2024-10-24 15:23:22,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 234 transitions, 1358 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:22,701 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 1292 flow [2024-10-24 15:23:22,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-10-24 15:23:22,703 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 68 predicate places. [2024-10-24 15:23:22,704 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 1292 flow [2024-10-24 15:23:22,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:22,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:22,704 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:22,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:23:22,705 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:22,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1016325404, now seen corresponding path program 1 times [2024-10-24 15:23:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:22,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126390543] [2024-10-24 15:23:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:23,022 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:23:23,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:23,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126390543] [2024-10-24 15:23:23,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126390543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:23,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:23,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:23,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949880781] [2024-10-24 15:23:23,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:23,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:23,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:23,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:23,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:23,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 103 [2024-10-24 15:23:23,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 1292 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:23,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:23,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 103 [2024-10-24 15:23:23,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:23,472 INFO L124 PetriNetUnfolderBase]: 594/1820 cut-off events. [2024-10-24 15:23:23,473 INFO L125 PetriNetUnfolderBase]: For 2542/2587 co-relation queries the response was YES. [2024-10-24 15:23:23,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5627 conditions, 1820 events. 594/1820 cut-off events. For 2542/2587 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12337 event pairs, 150 based on Foata normal form. 25/1813 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2024-10-24 15:23:23,481 INFO L140 encePairwiseOnDemand]: 86/103 looper letters, 122 selfloop transitions, 58 changer transitions 39/318 dead transitions. [2024-10-24 15:23:23,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 318 transitions, 2254 flow [2024-10-24 15:23:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:23,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:23,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 516 transitions. [2024-10-24 15:23:23,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8349514563106796 [2024-10-24 15:23:23,483 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 1292 flow. Second operand 6 states and 516 transitions. [2024-10-24 15:23:23,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 318 transitions, 2254 flow [2024-10-24 15:23:23,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 318 transitions, 2244 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:23,493 INFO L231 Difference]: Finished difference. Result has 176 places, 253 transitions, 1690 flow [2024-10-24 15:23:23,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1690, PETRI_PLACES=176, PETRI_TRANSITIONS=253} [2024-10-24 15:23:23,495 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 72 predicate places. [2024-10-24 15:23:23,495 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 253 transitions, 1690 flow [2024-10-24 15:23:23,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:23,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:23,496 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:23,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:23:23,496 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:23:23,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash -542394151, now seen corresponding path program 1 times [2024-10-24 15:23:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:23,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910555570] [2024-10-24 15:23:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:23:23,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:23,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910555570] [2024-10-24 15:23:23,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910555570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:23,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:23,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:23:23,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719561428] [2024-10-24 15:23:23,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:23,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:23,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:23,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:23,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:23,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 103 [2024-10-24 15:23:23,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 253 transitions, 1690 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:23,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:23,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 103 [2024-10-24 15:23:23,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:23,609 INFO L124 PetriNetUnfolderBase]: 6/234 cut-off events. [2024-10-24 15:23:23,609 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-24 15:23:23,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 234 events. 6/234 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 event pairs, 3 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 423. Up to 23 conditions per place. [2024-10-24 15:23:23,610 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 0 selfloop transitions, 0 changer transitions 127/127 dead transitions. [2024-10-24 15:23:23,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 127 transitions, 624 flow [2024-10-24 15:23:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:23,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-10-24 15:23:23,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9449838187702265 [2024-10-24 15:23:23,611 INFO L175 Difference]: Start difference. First operand has 176 places, 253 transitions, 1690 flow. Second operand 3 states and 292 transitions. [2024-10-24 15:23:23,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 127 transitions, 624 flow [2024-10-24 15:23:23,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 127 transitions, 484 flow, removed 30 selfloop flow, removed 29 redundant places. [2024-10-24 15:23:23,614 INFO L231 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2024-10-24 15:23:23,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2024-10-24 15:23:23,614 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 41 predicate places. [2024-10-24 15:23:23,614 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2024-10-24 15:23:23,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-24 15:23:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-24 15:23:23,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-24 15:23:23,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-24 15:23:23,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:23:23,618 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2024-10-24 15:23:23,622 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:23:23,622 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:23:23,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:23:23 BasicIcfg [2024-10-24 15:23:23,625 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:23:23,625 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:23:23,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:23:23,625 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:23:23,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:16" (3/4) ... [2024-10-24 15:23:23,627 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:23:23,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 15:23:23,631 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-24 15:23:23,631 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:23:23,631 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:23:23,687 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:23:23,687 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:23:23,688 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:23:23,688 INFO L158 Benchmark]: Toolchain (without parser) took 8441.76ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 144.1MB in the beginning and 142.9MB in the end (delta: 1.1MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,688 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:23:23,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.18ms. Allocated memory is still 176.2MB. Free memory was 147.0MB in the beginning and 124.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.87ms. Allocated memory is still 176.2MB. Free memory was 124.7MB in the beginning and 122.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,689 INFO L158 Benchmark]: Boogie Preprocessor took 37.81ms. Allocated memory is still 176.2MB. Free memory was 122.6MB in the beginning and 120.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,689 INFO L158 Benchmark]: RCFGBuilder took 367.08ms. Allocated memory is still 176.2MB. Free memory was 120.5MB in the beginning and 101.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,689 INFO L158 Benchmark]: TraceAbstraction took 7540.80ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 100.9MB in the beginning and 147.1MB in the end (delta: -46.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,689 INFO L158 Benchmark]: Witness Printer took 62.58ms. Allocated memory is still 281.0MB. Free memory was 147.1MB in the beginning and 142.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:23:23,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.18ms. Allocated memory is still 176.2MB. Free memory was 147.0MB in the beginning and 124.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.87ms. Allocated memory is still 176.2MB. Free memory was 124.7MB in the beginning and 122.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.81ms. Allocated memory is still 176.2MB. Free memory was 122.6MB in the beginning and 120.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 367.08ms. Allocated memory is still 176.2MB. Free memory was 120.5MB in the beginning and 101.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7540.80ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 100.9MB in the beginning and 147.1MB in the end (delta: -46.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Witness Printer took 62.58ms. Allocated memory is still 281.0MB. Free memory was 147.1MB in the beginning and 142.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.5s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 879 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 367 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2175 IncrementalHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 367 mSolverCounterUnsat, 16 mSDtfsCounter, 2175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 502 GetRequests, 366 SyntacticMatches, 11 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1690occurred in iteration=9, InterpolantAutomatonStates: 98, 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, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 917 NumberOfCodeBlocks, 867 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1044 ConstructedInterpolants, 0 QuantifiedInterpolants, 2115 SizeOfPredicates, 22 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 1070/1593 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 15:23:23,714 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 Result: TRUE