./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:29:05,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:29:05,728 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:29:05,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:29:05,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:29:05,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:29:05,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:29:05,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:29:05,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:29:05,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:29:05,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:29:05,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:29:05,757 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:29:05,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:29:05,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:29:05,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:29:05,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:29:05,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:29:05,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:29:05,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:29:05,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:29:05,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:29:05,763 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:29:05,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:29:05,764 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:29:05,764 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:29:05,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:29:05,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:29:05,765 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:29:05,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:29:05,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:29:05,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:29:05,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:29:05,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:29:05,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:29:05,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:29:05,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:29:05,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:29:05,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:29:05,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:29:05,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:29:05,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-11-10 14:29:06,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:29:06,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:29:06,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:29:06,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:29:06,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:29:06,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-10 14:29:07,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:29:07,812 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:29:07,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-10 14:29:07,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fedb1a124/3f389c5d10584ab797404f5455ed9735/FLAGead5c3d20 [2024-11-10 14:29:07,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fedb1a124/3f389c5d10584ab797404f5455ed9735 [2024-11-10 14:29:07,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:29:07,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:29:07,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:29:07,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:29:07,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:29:07,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:29:07" (1/1) ... [2024-11-10 14:29:07,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676c7987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:07, skipping insertion in model container [2024-11-10 14:29:07,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:29:07" (1/1) ... [2024-11-10 14:29:07,898 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:29:08,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:08,418 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:29:08,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:29:08,535 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:29:08,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08 WrapperNode [2024-11-10 14:29:08,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:29:08,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:08,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:29:08,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:29:08,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,596 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-10 14:29:08,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:29:08,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:29:08,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:29:08,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:29:08,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,621 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:29:08,631 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:29:08,632 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:29:08,632 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:29:08,632 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (1/1) ... [2024-11-10 14:29:08,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:29:08,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:29:08,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:29:08,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:29:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:29:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:29:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:29:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:29:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:29:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:29:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:29:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:29:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:29:08,729 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:29:08,889 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:29:08,891 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:29:09,068 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:29:09,068 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:29:09,100 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:29:09,100 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:29:09,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:09 BoogieIcfgContainer [2024-11-10 14:29:09,102 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:29:09,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:29:09,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:29:09,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:29:09,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:29:07" (1/3) ... [2024-11-10 14:29:09,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644169cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:09, skipping insertion in model container [2024-11-10 14:29:09,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:29:08" (2/3) ... [2024-11-10 14:29:09,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644169cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:29:09, skipping insertion in model container [2024-11-10 14:29:09,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:09" (3/3) ... [2024-11-10 14:29:09,112 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-11-10 14:29:09,129 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:29:09,130 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 14:29:09,130 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:29:09,186 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:29:09,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2024-11-10 14:29:09,279 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-11-10 14:29:09,280 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:09,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-10 14:29:09,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2024-11-10 14:29:09,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2024-11-10 14:29:09,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:29:09,311 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;@2400279c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:29:09,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 14:29:09,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:29:09,338 INFO L124 PetriNetUnfolderBase]: 1/60 cut-off events. [2024-11-10 14:29:09,339 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:29:09,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:09,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:09,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:09,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:09,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1254994195, now seen corresponding path program 1 times [2024-11-10 14:29:09,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:09,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960039790] [2024-11-10 14:29:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:09,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:10,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:10,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960039790] [2024-11-10 14:29:10,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960039790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:10,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:10,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:10,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027957938] [2024-11-10 14:29:10,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:10,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:10,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:10,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:10,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2024-11-10 14:29:10,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:10,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:10,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2024-11-10 14:29:10,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:10,691 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2024-11-10 14:29:10,692 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:29:10,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1540 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2024-11-10 14:29:10,698 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2024-11-10 14:29:10,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2024-11-10 14:29:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-10 14:29:10,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-11-10 14:29:10,719 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2024-11-10 14:29:10,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2024-11-10 14:29:10,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:29:10,759 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2024-11-10 14:29:10,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2024-11-10 14:29:10,765 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2024-11-10 14:29:10,766 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2024-11-10 14:29:10,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:10,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:10,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:10,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:29:10,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:10,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:10,768 INFO L85 PathProgramCache]: Analyzing trace with hash -876279696, now seen corresponding path program 1 times [2024-11-10 14:29:10,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:10,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093280210] [2024-11-10 14:29:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:10,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:11,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:11,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093280210] [2024-11-10 14:29:11,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093280210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:11,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:11,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:29:11,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938438845] [2024-11-10 14:29:11,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:11,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:29:11,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:29:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:29:11,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-11-10 14:29:11,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:11,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:11,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-11-10 14:29:11,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:11,389 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2024-11-10 14:29:11,390 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2024-11-10 14:29:11,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2603 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2024-11-10 14:29:11,395 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2024-11-10 14:29:11,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2024-11-10 14:29:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:29:11,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:29:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2024-11-10 14:29:11,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2024-11-10 14:29:11,398 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2024-11-10 14:29:11,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2024-11-10 14:29:11,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:11,405 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2024-11-10 14:29:11,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2024-11-10 14:29:11,406 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2024-11-10 14:29:11,407 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2024-11-10 14:29:11,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:11,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:11,408 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:11,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:29:11,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:11,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash -432919169, now seen corresponding path program 1 times [2024-11-10 14:29:11,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:11,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472775460] [2024-11-10 14:29:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:11,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:11,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:11,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472775460] [2024-11-10 14:29:11,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472775460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:11,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:11,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 14:29:11,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607708666] [2024-11-10 14:29:11,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:11,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:29:11,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:11,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:29:11,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 14:29:12,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 81 [2024-11-10 14:29:12,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:12,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:12,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 81 [2024-11-10 14:29:12,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:12,300 INFO L124 PetriNetUnfolderBase]: 92/471 cut-off events. [2024-11-10 14:29:12,300 INFO L125 PetriNetUnfolderBase]: For 187/189 co-relation queries the response was YES. [2024-11-10 14:29:12,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 471 events. 92/471 cut-off events. For 187/189 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2452 event pairs, 14 based on Foata normal form. 4/471 useless extension candidates. Maximal degree in co-relation 906. Up to 84 conditions per place. [2024-11-10 14:29:12,304 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 17 selfloop transitions, 1 changer transitions 13/136 dead transitions. [2024-11-10 14:29:12,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 136 transitions, 650 flow [2024-11-10 14:29:12,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:29:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:29:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 529 transitions. [2024-11-10 14:29:12,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.816358024691358 [2024-11-10 14:29:12,308 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 8 states and 529 transitions. [2024-11-10 14:29:12,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 136 transitions, 650 flow [2024-11-10 14:29:12,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 136 transitions, 632 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-10 14:29:12,319 INFO L231 Difference]: Finished difference. Result has 114 places, 123 transitions, 572 flow [2024-11-10 14:29:12,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=572, PETRI_PLACES=114, PETRI_TRANSITIONS=123} [2024-11-10 14:29:12,320 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 31 predicate places. [2024-11-10 14:29:12,320 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 123 transitions, 572 flow [2024-11-10 14:29:12,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:12,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:12,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:12,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:29:12,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:12,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:12,322 INFO L85 PathProgramCache]: Analyzing trace with hash 351029623, now seen corresponding path program 1 times [2024-11-10 14:29:12,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:12,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691002386] [2024-11-10 14:29:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:12,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:12,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:12,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691002386] [2024-11-10 14:29:12,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691002386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:12,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:12,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327541717] [2024-11-10 14:29:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:12,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:12,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:12,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:12,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:13,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:13,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 123 transitions, 572 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:13,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:13,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:13,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:14,026 INFO L124 PetriNetUnfolderBase]: 229/697 cut-off events. [2024-11-10 14:29:14,026 INFO L125 PetriNetUnfolderBase]: For 737/743 co-relation queries the response was YES. [2024-11-10 14:29:14,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 697 events. 229/697 cut-off events. For 737/743 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3613 event pairs, 27 based on Foata normal form. 10/704 useless extension candidates. Maximal degree in co-relation 2146. Up to 236 conditions per place. [2024-11-10 14:29:14,032 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 64 selfloop transitions, 36 changer transitions 48/198 dead transitions. [2024-11-10 14:29:14,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 1266 flow [2024-11-10 14:29:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:29:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:29:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 806 transitions. [2024-11-10 14:29:14,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7107583774250441 [2024-11-10 14:29:14,037 INFO L175 Difference]: Start difference. First operand has 114 places, 123 transitions, 572 flow. Second operand 14 states and 806 transitions. [2024-11-10 14:29:14,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 198 transitions, 1266 flow [2024-11-10 14:29:14,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 198 transitions, 1247 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-10 14:29:14,047 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 814 flow [2024-11-10 14:29:14,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=814, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2024-11-10 14:29:14,050 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2024-11-10 14:29:14,050 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 814 flow [2024-11-10 14:29:14,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:14,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:14,052 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:14,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:29:14,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:14,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1567837365, now seen corresponding path program 2 times [2024-11-10 14:29:14,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:14,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745584455] [2024-11-10 14:29:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:14,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745584455] [2024-11-10 14:29:14,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745584455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:14,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:14,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034736880] [2024-11-10 14:29:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:14,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:14,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:14,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:14,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:15,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:15,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 814 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:15,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:15,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:15,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:15,707 INFO L124 PetriNetUnfolderBase]: 189/619 cut-off events. [2024-11-10 14:29:15,707 INFO L125 PetriNetUnfolderBase]: For 1565/1584 co-relation queries the response was YES. [2024-11-10 14:29:15,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 619 events. 189/619 cut-off events. For 1565/1584 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3187 event pairs, 44 based on Foata normal form. 18/633 useless extension candidates. Maximal degree in co-relation 2353. Up to 256 conditions per place. [2024-11-10 14:29:15,712 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 57 selfloop transitions, 39 changer transitions 37/183 dead transitions. [2024-11-10 14:29:15,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 183 transitions, 1404 flow [2024-11-10 14:29:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 14:29:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 14:29:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 754 transitions. [2024-11-10 14:29:15,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2024-11-10 14:29:15,715 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 814 flow. Second operand 13 states and 754 transitions. [2024-11-10 14:29:15,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 183 transitions, 1404 flow [2024-11-10 14:29:15,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1363 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-10 14:29:15,727 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 855 flow [2024-11-10 14:29:15,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=855, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2024-11-10 14:29:15,728 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 50 predicate places. [2024-11-10 14:29:15,729 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 855 flow [2024-11-10 14:29:15,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:15,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:15,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:15,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:29:15,730 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:15,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:15,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1409697683, now seen corresponding path program 1 times [2024-11-10 14:29:15,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:15,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11420601] [2024-11-10 14:29:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:15,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:16,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:16,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11420601] [2024-11-10 14:29:16,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11420601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:16,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:16,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:16,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329825016] [2024-11-10 14:29:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:16,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:16,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:16,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:16,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:16,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 855 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:16,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:16,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:16,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:17,049 INFO L124 PetriNetUnfolderBase]: 163/545 cut-off events. [2024-11-10 14:29:17,050 INFO L125 PetriNetUnfolderBase]: For 1710/1727 co-relation queries the response was YES. [2024-11-10 14:29:17,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 545 events. 163/545 cut-off events. For 1710/1727 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2696 event pairs, 23 based on Foata normal form. 13/554 useless extension candidates. Maximal degree in co-relation 2202. Up to 90 conditions per place. [2024-11-10 14:29:17,055 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 84 selfloop transitions, 38 changer transitions 14/183 dead transitions. [2024-11-10 14:29:17,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 1610 flow [2024-11-10 14:29:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 14:29:17,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 14:29:17,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 671 transitions. [2024-11-10 14:29:17,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6903292181069959 [2024-11-10 14:29:17,058 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 855 flow. Second operand 12 states and 671 transitions. [2024-11-10 14:29:17,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 1610 flow [2024-11-10 14:29:17,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1506 flow, removed 5 selfloop flow, removed 11 redundant places. [2024-11-10 14:29:17,071 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 856 flow [2024-11-10 14:29:17,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=856, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2024-11-10 14:29:17,072 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 46 predicate places. [2024-11-10 14:29:17,072 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 856 flow [2024-11-10 14:29:17,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:17,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:17,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:17,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:29:17,073 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:17,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1543047495, now seen corresponding path program 3 times [2024-11-10 14:29:17,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:17,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434906874] [2024-11-10 14:29:17,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:17,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:17,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:17,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434906874] [2024-11-10 14:29:17,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434906874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:17,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:17,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446573421] [2024-11-10 14:29:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:17,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:17,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:17,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:17,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 856 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:17,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:17,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:17,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:18,506 INFO L124 PetriNetUnfolderBase]: 169/524 cut-off events. [2024-11-10 14:29:18,507 INFO L125 PetriNetUnfolderBase]: For 1755/1779 co-relation queries the response was YES. [2024-11-10 14:29:18,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 524 events. 169/524 cut-off events. For 1755/1779 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2391 event pairs, 32 based on Foata normal form. 23/543 useless extension candidates. Maximal degree in co-relation 2327. Up to 230 conditions per place. [2024-11-10 14:29:18,512 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 55 selfloop transitions, 42 changer transitions 28/171 dead transitions. [2024-11-10 14:29:18,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 1450 flow [2024-11-10 14:29:18,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:29:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:29:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 802 transitions. [2024-11-10 14:29:18,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7072310405643739 [2024-11-10 14:29:18,515 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 856 flow. Second operand 14 states and 802 transitions. [2024-11-10 14:29:18,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 1450 flow [2024-11-10 14:29:18,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 171 transitions, 1330 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-10 14:29:18,527 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 917 flow [2024-11-10 14:29:18,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=917, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2024-11-10 14:29:18,529 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 49 predicate places. [2024-11-10 14:29:18,529 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 917 flow [2024-11-10 14:29:18,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:18,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:18,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:18,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:29:18,530 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:18,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:18,531 INFO L85 PathProgramCache]: Analyzing trace with hash 427421027, now seen corresponding path program 4 times [2024-11-10 14:29:18,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:18,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647994960] [2024-11-10 14:29:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:18,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:18,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:18,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647994960] [2024-11-10 14:29:18,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647994960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:18,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:18,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:18,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944543574] [2024-11-10 14:29:18,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:18,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:18,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:18,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:18,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:19,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:19,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 917 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:19,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:19,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:19,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:19,886 INFO L124 PetriNetUnfolderBase]: 171/558 cut-off events. [2024-11-10 14:29:19,886 INFO L125 PetriNetUnfolderBase]: For 2977/3000 co-relation queries the response was YES. [2024-11-10 14:29:19,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 558 events. 171/558 cut-off events. For 2977/3000 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2713 event pairs, 27 based on Foata normal form. 19/575 useless extension candidates. Maximal degree in co-relation 2465. Up to 129 conditions per place. [2024-11-10 14:29:19,891 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 114 selfloop transitions, 37 changer transitions 12/209 dead transitions. [2024-11-10 14:29:19,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 209 transitions, 2018 flow [2024-11-10 14:29:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 833 transitions. [2024-11-10 14:29:19,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68559670781893 [2024-11-10 14:29:19,893 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 917 flow. Second operand 15 states and 833 transitions. [2024-11-10 14:29:19,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 209 transitions, 2018 flow [2024-11-10 14:29:19,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 209 transitions, 1690 flow, removed 58 selfloop flow, removed 16 redundant places. [2024-11-10 14:29:19,906 INFO L231 Difference]: Finished difference. Result has 137 places, 147 transitions, 1080 flow [2024-11-10 14:29:19,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1080, PETRI_PLACES=137, PETRI_TRANSITIONS=147} [2024-11-10 14:29:19,909 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 54 predicate places. [2024-11-10 14:29:19,909 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 147 transitions, 1080 flow [2024-11-10 14:29:19,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:19,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:19,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:19,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:29:19,910 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:19,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash -937564479, now seen corresponding path program 5 times [2024-11-10 14:29:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:19,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358155134] [2024-11-10 14:29:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:20,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:20,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358155134] [2024-11-10 14:29:20,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358155134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:20,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:20,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:20,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680407198] [2024-11-10 14:29:20,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:20,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:20,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:20,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:20,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 1080 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:20,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:20,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:20,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:21,225 INFO L124 PetriNetUnfolderBase]: 177/550 cut-off events. [2024-11-10 14:29:21,226 INFO L125 PetriNetUnfolderBase]: For 2499/2531 co-relation queries the response was YES. [2024-11-10 14:29:21,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 550 events. 177/550 cut-off events. For 2499/2531 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2630 event pairs, 33 based on Foata normal form. 25/571 useless extension candidates. Maximal degree in co-relation 2542. Up to 263 conditions per place. [2024-11-10 14:29:21,231 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 71 selfloop transitions, 41 changer transitions 32/190 dead transitions. [2024-11-10 14:29:21,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 190 transitions, 1729 flow [2024-11-10 14:29:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:29:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:29:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 787 transitions. [2024-11-10 14:29:21,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6940035273368607 [2024-11-10 14:29:21,235 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 1080 flow. Second operand 14 states and 787 transitions. [2024-11-10 14:29:21,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 190 transitions, 1729 flow [2024-11-10 14:29:21,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 190 transitions, 1657 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-11-10 14:29:21,249 INFO L231 Difference]: Finished difference. Result has 144 places, 143 transitions, 1123 flow [2024-11-10 14:29:21,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1123, PETRI_PLACES=144, PETRI_TRANSITIONS=143} [2024-11-10 14:29:21,251 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 61 predicate places. [2024-11-10 14:29:21,251 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 143 transitions, 1123 flow [2024-11-10 14:29:21,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:21,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:21,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:21,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:29:21,253 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:21,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash -697376083, now seen corresponding path program 6 times [2024-11-10 14:29:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202323849] [2024-11-10 14:29:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:21,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:21,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:21,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202323849] [2024-11-10 14:29:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202323849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:21,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:21,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:21,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302635695] [2024-11-10 14:29:21,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:21,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:22,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:22,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 143 transitions, 1123 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:22,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:22,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:22,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:22,603 INFO L124 PetriNetUnfolderBase]: 212/657 cut-off events. [2024-11-10 14:29:22,604 INFO L125 PetriNetUnfolderBase]: For 4504/4543 co-relation queries the response was YES. [2024-11-10 14:29:22,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 657 events. 212/657 cut-off events. For 4504/4543 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3475 event pairs, 32 based on Foata normal form. 28/682 useless extension candidates. Maximal degree in co-relation 3067. Up to 220 conditions per place. [2024-11-10 14:29:22,610 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 126 selfloop transitions, 50 changer transitions 16/238 dead transitions. [2024-11-10 14:29:22,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 238 transitions, 2375 flow [2024-11-10 14:29:22,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-10 14:29:22,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-10 14:29:22,614 INFO L175 Difference]: Start difference. First operand has 144 places, 143 transitions, 1123 flow. Second operand 15 states and 838 transitions. [2024-11-10 14:29:22,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 238 transitions, 2375 flow [2024-11-10 14:29:22,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 238 transitions, 2237 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-10 14:29:22,636 INFO L231 Difference]: Finished difference. Result has 153 places, 170 transitions, 1521 flow [2024-11-10 14:29:22,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1521, PETRI_PLACES=153, PETRI_TRANSITIONS=170} [2024-11-10 14:29:22,638 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 70 predicate places. [2024-11-10 14:29:22,639 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 170 transitions, 1521 flow [2024-11-10 14:29:22,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:22,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:22,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:22,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:29:22,644 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:22,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:22,645 INFO L85 PathProgramCache]: Analyzing trace with hash 901107943, now seen corresponding path program 7 times [2024-11-10 14:29:22,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:22,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448037143] [2024-11-10 14:29:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:22,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:23,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:23,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448037143] [2024-11-10 14:29:23,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448037143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:23,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:23,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:23,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066924660] [2024-11-10 14:29:23,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:23,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:23,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:23,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:23,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:23,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:23,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 170 transitions, 1521 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:23,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:23,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:23,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:24,035 INFO L124 PetriNetUnfolderBase]: 246/735 cut-off events. [2024-11-10 14:29:24,036 INFO L125 PetriNetUnfolderBase]: For 5786/5825 co-relation queries the response was YES. [2024-11-10 14:29:24,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 735 events. 246/735 cut-off events. For 5786/5825 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4004 event pairs, 41 based on Foata normal form. 28/758 useless extension candidates. Maximal degree in co-relation 3682. Up to 257 conditions per place. [2024-11-10 14:29:24,044 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 143 selfloop transitions, 56 changer transitions 18/263 dead transitions. [2024-11-10 14:29:24,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 263 transitions, 2818 flow [2024-11-10 14:29:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2024-11-10 14:29:24,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2024-11-10 14:29:24,046 INFO L175 Difference]: Start difference. First operand has 153 places, 170 transitions, 1521 flow. Second operand 15 states and 841 transitions. [2024-11-10 14:29:24,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 263 transitions, 2818 flow [2024-11-10 14:29:24,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 2724 flow, removed 35 selfloop flow, removed 8 redundant places. [2024-11-10 14:29:24,072 INFO L231 Difference]: Finished difference. Result has 166 places, 190 transitions, 1898 flow [2024-11-10 14:29:24,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1898, PETRI_PLACES=166, PETRI_TRANSITIONS=190} [2024-11-10 14:29:24,073 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 83 predicate places. [2024-11-10 14:29:24,073 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 190 transitions, 1898 flow [2024-11-10 14:29:24,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:24,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:24,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:24,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:29:24,074 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:24,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:24,075 INFO L85 PathProgramCache]: Analyzing trace with hash -155447871, now seen corresponding path program 8 times [2024-11-10 14:29:24,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:24,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063695366] [2024-11-10 14:29:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:24,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:24,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063695366] [2024-11-10 14:29:24,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063695366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:24,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:24,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166643377] [2024-11-10 14:29:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:24,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:24,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:24,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:24,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 190 transitions, 1898 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:24,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:24,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:24,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:25,388 INFO L124 PetriNetUnfolderBase]: 241/724 cut-off events. [2024-11-10 14:29:25,388 INFO L125 PetriNetUnfolderBase]: For 7822/7864 co-relation queries the response was YES. [2024-11-10 14:29:25,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4058 conditions, 724 events. 241/724 cut-off events. For 7822/7864 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3890 event pairs, 23 based on Foata normal form. 35/758 useless extension candidates. Maximal degree in co-relation 4005. Up to 309 conditions per place. [2024-11-10 14:29:25,396 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 142 selfloop transitions, 54 changer transitions 19/261 dead transitions. [2024-11-10 14:29:25,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 261 transitions, 3113 flow [2024-11-10 14:29:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:25,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-10 14:29:25,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-10 14:29:25,402 INFO L175 Difference]: Start difference. First operand has 166 places, 190 transitions, 1898 flow. Second operand 15 states and 836 transitions. [2024-11-10 14:29:25,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 261 transitions, 3113 flow [2024-11-10 14:29:25,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 261 transitions, 2976 flow, removed 62 selfloop flow, removed 8 redundant places. [2024-11-10 14:29:25,437 INFO L231 Difference]: Finished difference. Result has 177 places, 203 transitions, 2173 flow [2024-11-10 14:29:25,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1793, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2173, PETRI_PLACES=177, PETRI_TRANSITIONS=203} [2024-11-10 14:29:25,438 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2024-11-10 14:29:25,438 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 203 transitions, 2173 flow [2024-11-10 14:29:25,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:25,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:25,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:25,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:29:25,440 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:25,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2016461923, now seen corresponding path program 9 times [2024-11-10 14:29:25,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:25,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493725685] [2024-11-10 14:29:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:25,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:25,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493725685] [2024-11-10 14:29:25,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493725685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:25,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:25,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:25,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366987906] [2024-11-10 14:29:25,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:25,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:25,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:25,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:25,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:26,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:26,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 203 transitions, 2173 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:26,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:26,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:26,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:26,706 INFO L124 PetriNetUnfolderBase]: 218/686 cut-off events. [2024-11-10 14:29:26,706 INFO L125 PetriNetUnfolderBase]: For 8055/8099 co-relation queries the response was YES. [2024-11-10 14:29:26,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 686 events. 218/686 cut-off events. For 8055/8099 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3677 event pairs, 20 based on Foata normal form. 40/725 useless extension candidates. Maximal degree in co-relation 3818. Up to 340 conditions per place. [2024-11-10 14:29:26,714 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 123 selfloop transitions, 48 changer transitions 30/247 dead transitions. [2024-11-10 14:29:26,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 247 transitions, 3042 flow [2024-11-10 14:29:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2024-11-10 14:29:26,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2024-11-10 14:29:26,716 INFO L175 Difference]: Start difference. First operand has 177 places, 203 transitions, 2173 flow. Second operand 15 states and 834 transitions. [2024-11-10 14:29:26,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 247 transitions, 3042 flow [2024-11-10 14:29:26,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 247 transitions, 2911 flow, removed 46 selfloop flow, removed 9 redundant places. [2024-11-10 14:29:26,751 INFO L231 Difference]: Finished difference. Result has 186 places, 199 transitions, 2147 flow [2024-11-10 14:29:26,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2062, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2147, PETRI_PLACES=186, PETRI_TRANSITIONS=199} [2024-11-10 14:29:26,752 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 103 predicate places. [2024-11-10 14:29:26,752 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 199 transitions, 2147 flow [2024-11-10 14:29:26,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:26,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:26,753 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:26,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:29:26,753 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:26,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1314078941, now seen corresponding path program 10 times [2024-11-10 14:29:26,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:26,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567379094] [2024-11-10 14:29:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:26,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:27,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:27,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567379094] [2024-11-10 14:29:27,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567379094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:27,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:27,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:27,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722506007] [2024-11-10 14:29:27,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:27,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:27,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:27,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:27,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:27,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 199 transitions, 2147 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:27,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:27,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:27,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:27,936 INFO L124 PetriNetUnfolderBase]: 212/684 cut-off events. [2024-11-10 14:29:27,937 INFO L125 PetriNetUnfolderBase]: For 8795/8835 co-relation queries the response was YES. [2024-11-10 14:29:27,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3866 conditions, 684 events. 212/684 cut-off events. For 8795/8835 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3701 event pairs, 27 based on Foata normal form. 44/726 useless extension candidates. Maximal degree in co-relation 3807. Up to 355 conditions per place. [2024-11-10 14:29:27,942 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 116 selfloop transitions, 58 changer transitions 26/246 dead transitions. [2024-11-10 14:29:27,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 246 transitions, 3001 flow [2024-11-10 14:29:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 842 transitions. [2024-11-10 14:29:27,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6930041152263374 [2024-11-10 14:29:27,944 INFO L175 Difference]: Start difference. First operand has 186 places, 199 transitions, 2147 flow. Second operand 15 states and 842 transitions. [2024-11-10 14:29:27,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 246 transitions, 3001 flow [2024-11-10 14:29:27,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 246 transitions, 2899 flow, removed 23 selfloop flow, removed 11 redundant places. [2024-11-10 14:29:27,979 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 2271 flow [2024-11-10 14:29:27,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2068, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2271, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2024-11-10 14:29:27,980 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 109 predicate places. [2024-11-10 14:29:27,981 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 2271 flow [2024-11-10 14:29:27,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:27,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:27,981 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:27,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:29:27,982 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:27,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:27,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1251688225, now seen corresponding path program 11 times [2024-11-10 14:29:27,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:27,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839242024] [2024-11-10 14:29:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:27,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:28,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:28,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839242024] [2024-11-10 14:29:28,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839242024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:28,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:28,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070846711] [2024-11-10 14:29:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:28,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:28,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:28,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:28,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:28,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 2271 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:28,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:28,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:28,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:29,138 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2024-11-10 14:29:29,138 INFO L125 PetriNetUnfolderBase]: For 12697/12737 co-relation queries the response was YES. [2024-11-10 14:29:29,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 796 events. 250/796 cut-off events. For 12697/12737 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4567 event pairs, 33 based on Foata normal form. 31/825 useless extension candidates. Maximal degree in co-relation 4747. Up to 359 conditions per place. [2024-11-10 14:29:29,147 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 153 selfloop transitions, 62 changer transitions 13/274 dead transitions. [2024-11-10 14:29:29,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 274 transitions, 3705 flow [2024-11-10 14:29:29,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:29,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-10 14:29:29,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-10 14:29:29,150 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 2271 flow. Second operand 15 states and 838 transitions. [2024-11-10 14:29:29,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 274 transitions, 3705 flow [2024-11-10 14:29:29,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 274 transitions, 3471 flow, removed 53 selfloop flow, removed 14 redundant places. [2024-11-10 14:29:29,199 INFO L231 Difference]: Finished difference. Result has 196 places, 222 transitions, 2675 flow [2024-11-10 14:29:29,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2675, PETRI_PLACES=196, PETRI_TRANSITIONS=222} [2024-11-10 14:29:29,200 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 113 predicate places. [2024-11-10 14:29:29,200 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 222 transitions, 2675 flow [2024-11-10 14:29:29,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:29,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:29,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:29,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:29:29,201 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:29,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:29,201 INFO L85 PathProgramCache]: Analyzing trace with hash 12765315, now seen corresponding path program 12 times [2024-11-10 14:29:29,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:29,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068204325] [2024-11-10 14:29:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:29,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:29,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:29,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068204325] [2024-11-10 14:29:29,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068204325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:29,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:29,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193878822] [2024-11-10 14:29:29,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:29,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:29,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:30,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:30,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 222 transitions, 2675 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:30,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:30,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:30,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:30,593 INFO L124 PetriNetUnfolderBase]: 256/834 cut-off events. [2024-11-10 14:29:30,593 INFO L125 PetriNetUnfolderBase]: For 13097/13138 co-relation queries the response was YES. [2024-11-10 14:29:30,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5127 conditions, 834 events. 256/834 cut-off events. For 13097/13138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4986 event pairs, 36 based on Foata normal form. 36/865 useless extension candidates. Maximal degree in co-relation 5063. Up to 444 conditions per place. [2024-11-10 14:29:30,602 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 60 changer transitions 23/267 dead transitions. [2024-11-10 14:29:30,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 267 transitions, 3657 flow [2024-11-10 14:29:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:30,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:30,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-10 14:29:30,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-10 14:29:30,604 INFO L175 Difference]: Start difference. First operand has 196 places, 222 transitions, 2675 flow. Second operand 15 states and 836 transitions. [2024-11-10 14:29:30,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 267 transitions, 3657 flow [2024-11-10 14:29:30,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 267 transitions, 3499 flow, removed 71 selfloop flow, removed 7 redundant places. [2024-11-10 14:29:30,655 INFO L231 Difference]: Finished difference. Result has 207 places, 227 transitions, 2771 flow [2024-11-10 14:29:30,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2536, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2771, PETRI_PLACES=207, PETRI_TRANSITIONS=227} [2024-11-10 14:29:30,656 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 124 predicate places. [2024-11-10 14:29:30,656 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 227 transitions, 2771 flow [2024-11-10 14:29:30,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:30,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:30,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:30,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:29:30,657 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:30,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash 170221431, now seen corresponding path program 13 times [2024-11-10 14:29:30,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943525695] [2024-11-10 14:29:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:30,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943525695] [2024-11-10 14:29:30,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943525695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:30,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:30,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:30,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191417977] [2024-11-10 14:29:30,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:30,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:30,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:30,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:31,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:31,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 227 transitions, 2771 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:31,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:31,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:31,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:31,941 INFO L124 PetriNetUnfolderBase]: 245/810 cut-off events. [2024-11-10 14:29:31,942 INFO L125 PetriNetUnfolderBase]: For 13695/13731 co-relation queries the response was YES. [2024-11-10 14:29:31,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4979 conditions, 810 events. 245/810 cut-off events. For 13695/13731 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4798 event pairs, 36 based on Foata normal form. 35/837 useless extension candidates. Maximal degree in co-relation 4912. Up to 383 conditions per place. [2024-11-10 14:29:31,950 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 139 selfloop transitions, 67 changer transitions 26/278 dead transitions. [2024-11-10 14:29:31,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 3896 flow [2024-11-10 14:29:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 837 transitions. [2024-11-10 14:29:31,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2024-11-10 14:29:31,953 INFO L175 Difference]: Start difference. First operand has 207 places, 227 transitions, 2771 flow. Second operand 15 states and 837 transitions. [2024-11-10 14:29:31,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 3896 flow [2024-11-10 14:29:32,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 278 transitions, 3786 flow, removed 31 selfloop flow, removed 11 redundant places. [2024-11-10 14:29:32,004 INFO L231 Difference]: Finished difference. Result has 215 places, 227 transitions, 2911 flow [2024-11-10 14:29:32,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2700, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2911, PETRI_PLACES=215, PETRI_TRANSITIONS=227} [2024-11-10 14:29:32,005 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 132 predicate places. [2024-11-10 14:29:32,005 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 227 transitions, 2911 flow [2024-11-10 14:29:32,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:32,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:32,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:32,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:29:32,007 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:32,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1102456447, now seen corresponding path program 14 times [2024-11-10 14:29:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230424193] [2024-11-10 14:29:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:32,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:32,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230424193] [2024-11-10 14:29:32,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230424193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:32,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:32,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936087577] [2024-11-10 14:29:32,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:32,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:32,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:32,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:32,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:32,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:32,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 227 transitions, 2911 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:32,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:32,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:32,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:33,064 INFO L124 PetriNetUnfolderBase]: 230/778 cut-off events. [2024-11-10 14:29:33,064 INFO L125 PetriNetUnfolderBase]: For 13615/13655 co-relation queries the response was YES. [2024-11-10 14:29:33,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 778 events. 230/778 cut-off events. For 13615/13655 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4591 event pairs, 38 based on Foata normal form. 27/795 useless extension candidates. Maximal degree in co-relation 4778. Up to 443 conditions per place. [2024-11-10 14:29:33,071 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 137 selfloop transitions, 55 changer transitions 15/253 dead transitions. [2024-11-10 14:29:33,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 253 transitions, 3622 flow [2024-11-10 14:29:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:29:33,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:29:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 773 transitions. [2024-11-10 14:29:33,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.681657848324515 [2024-11-10 14:29:33,073 INFO L175 Difference]: Start difference. First operand has 215 places, 227 transitions, 2911 flow. Second operand 14 states and 773 transitions. [2024-11-10 14:29:33,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 253 transitions, 3622 flow [2024-11-10 14:29:33,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 253 transitions, 3475 flow, removed 56 selfloop flow, removed 8 redundant places. [2024-11-10 14:29:33,116 INFO L231 Difference]: Finished difference. Result has 221 places, 228 transitions, 2930 flow [2024-11-10 14:29:33,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2776, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2930, PETRI_PLACES=221, PETRI_TRANSITIONS=228} [2024-11-10 14:29:33,117 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 138 predicate places. [2024-11-10 14:29:33,117 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 228 transitions, 2930 flow [2024-11-10 14:29:33,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:33,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:33,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:33,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:29:33,118 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:33,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1144291063, now seen corresponding path program 15 times [2024-11-10 14:29:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795053754] [2024-11-10 14:29:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:33,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:33,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:33,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795053754] [2024-11-10 14:29:33,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795053754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:33,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:33,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912018216] [2024-11-10 14:29:33,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:33,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:33,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:33,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 228 transitions, 2930 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:33,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:33,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:33,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:34,472 INFO L124 PetriNetUnfolderBase]: 221/754 cut-off events. [2024-11-10 14:29:34,472 INFO L125 PetriNetUnfolderBase]: For 13564/13594 co-relation queries the response was YES. [2024-11-10 14:29:34,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 754 events. 221/754 cut-off events. For 13564/13594 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4393 event pairs, 38 based on Foata normal form. 28/769 useless extension candidates. Maximal degree in co-relation 4566. Up to 408 conditions per place. [2024-11-10 14:29:34,482 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 135 selfloop transitions, 55 changer transitions 29/265 dead transitions. [2024-11-10 14:29:34,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 265 transitions, 3835 flow [2024-11-10 14:29:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 831 transitions. [2024-11-10 14:29:34,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6839506172839506 [2024-11-10 14:29:34,485 INFO L175 Difference]: Start difference. First operand has 221 places, 228 transitions, 2930 flow. Second operand 15 states and 831 transitions. [2024-11-10 14:29:34,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 265 transitions, 3835 flow [2024-11-10 14:29:34,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 265 transitions, 3678 flow, removed 32 selfloop flow, removed 12 redundant places. [2024-11-10 14:29:34,543 INFO L231 Difference]: Finished difference. Result has 227 places, 221 transitions, 2801 flow [2024-11-10 14:29:34,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2805, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2801, PETRI_PLACES=227, PETRI_TRANSITIONS=221} [2024-11-10 14:29:34,543 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 144 predicate places. [2024-11-10 14:29:34,544 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 221 transitions, 2801 flow [2024-11-10 14:29:34,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:34,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:34,544 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:34,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:29:34,544 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:34,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1329985270, now seen corresponding path program 1 times [2024-11-10 14:29:34,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:34,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151669950] [2024-11-10 14:29:34,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:34,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:34,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151669950] [2024-11-10 14:29:34,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151669950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:34,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:34,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:34,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735703868] [2024-11-10 14:29:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:34,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:34,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:34,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:34,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:35,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:35,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 221 transitions, 2801 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:35,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:35,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:35,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:35,794 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2024-11-10 14:29:35,794 INFO L125 PetriNetUnfolderBase]: For 12030/12056 co-relation queries the response was YES. [2024-11-10 14:29:35,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4330 conditions, 740 events. 208/740 cut-off events. For 12030/12056 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4326 event pairs, 16 based on Foata normal form. 13/749 useless extension candidates. Maximal degree in co-relation 4257. Up to 223 conditions per place. [2024-11-10 14:29:35,800 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2024-11-10 14:29:35,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 262 transitions, 3727 flow [2024-11-10 14:29:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 14:29:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-10 14:29:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2024-11-10 14:29:35,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2024-11-10 14:29:35,802 INFO L175 Difference]: Start difference. First operand has 227 places, 221 transitions, 2801 flow. Second operand 18 states and 977 transitions. [2024-11-10 14:29:35,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 262 transitions, 3727 flow [2024-11-10 14:29:35,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 262 transitions, 3614 flow, removed 40 selfloop flow, removed 12 redundant places. [2024-11-10 14:29:35,848 INFO L231 Difference]: Finished difference. Result has 224 places, 210 transitions, 2657 flow [2024-11-10 14:29:35,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2732, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2657, PETRI_PLACES=224, PETRI_TRANSITIONS=210} [2024-11-10 14:29:35,848 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 141 predicate places. [2024-11-10 14:29:35,849 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 210 transitions, 2657 flow [2024-11-10 14:29:35,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:35,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:35,849 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:35,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:29:35,849 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:35,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash 629452018, now seen corresponding path program 2 times [2024-11-10 14:29:35,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:35,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812372596] [2024-11-10 14:29:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:35,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:36,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:36,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812372596] [2024-11-10 14:29:36,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812372596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:36,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:36,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080280523] [2024-11-10 14:29:36,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:36,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:36,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:36,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 210 transitions, 2657 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:36,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:36,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:36,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:37,043 INFO L124 PetriNetUnfolderBase]: 195/717 cut-off events. [2024-11-10 14:29:37,043 INFO L125 PetriNetUnfolderBase]: For 12780/12806 co-relation queries the response was YES. [2024-11-10 14:29:37,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 717 events. 195/717 cut-off events. For 12780/12806 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4172 event pairs, 16 based on Foata normal form. 13/726 useless extension candidates. Maximal degree in co-relation 4108. Up to 223 conditions per place. [2024-11-10 14:29:37,050 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2024-11-10 14:29:37,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 252 transitions, 3632 flow [2024-11-10 14:29:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 14:29:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 14:29:37,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2024-11-10 14:29:37,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2024-11-10 14:29:37,052 INFO L175 Difference]: Start difference. First operand has 224 places, 210 transitions, 2657 flow. Second operand 20 states and 1077 transitions. [2024-11-10 14:29:37,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 252 transitions, 3632 flow [2024-11-10 14:29:37,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 252 transitions, 3425 flow, removed 34 selfloop flow, removed 17 redundant places. [2024-11-10 14:29:37,089 INFO L231 Difference]: Finished difference. Result has 228 places, 198 transitions, 2431 flow [2024-11-10 14:29:37,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2512, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2431, PETRI_PLACES=228, PETRI_TRANSITIONS=198} [2024-11-10 14:29:37,090 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 145 predicate places. [2024-11-10 14:29:37,090 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 198 transitions, 2431 flow [2024-11-10 14:29:37,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:37,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:37,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:37,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 14:29:37,091 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-10 14:29:37,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:37,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1066218888, now seen corresponding path program 3 times [2024-11-10 14:29:37,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:37,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846703850] [2024-11-10 14:29:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:37,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:37,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846703850] [2024-11-10 14:29:37,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846703850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:37,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:37,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:37,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591097877] [2024-11-10 14:29:37,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:37,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:37,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:37,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-10 14:29:37,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 198 transitions, 2431 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:37,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:37,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-10 14:29:37,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:38,318 INFO L124 PetriNetUnfolderBase]: 155/602 cut-off events. [2024-11-10 14:29:38,318 INFO L125 PetriNetUnfolderBase]: For 10891/10917 co-relation queries the response was YES. [2024-11-10 14:29:38,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3393 conditions, 602 events. 155/602 cut-off events. For 10891/10917 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3331 event pairs, 2 based on Foata normal form. 43/645 useless extension candidates. Maximal degree in co-relation 3326. Up to 159 conditions per place. [2024-11-10 14:29:38,324 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2024-11-10 14:29:38,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 260 transitions, 3520 flow [2024-11-10 14:29:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 14:29:38,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-10 14:29:38,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2024-11-10 14:29:38,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2024-11-10 14:29:38,326 INFO L175 Difference]: Start difference. First operand has 228 places, 198 transitions, 2431 flow. Second operand 24 states and 1282 transitions. [2024-11-10 14:29:38,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 260 transitions, 3520 flow [2024-11-10 14:29:38,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 260 transitions, 3255 flow, removed 47 selfloop flow, removed 22 redundant places. [2024-11-10 14:29:38,364 INFO L231 Difference]: Finished difference. Result has 214 places, 0 transitions, 0 flow [2024-11-10 14:29:38,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2262, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=214, PETRI_TRANSITIONS=0} [2024-11-10 14:29:38,364 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 131 predicate places. [2024-11-10 14:29:38,364 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 0 transitions, 0 flow [2024-11-10 14:29:38,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:29:38,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-11-10 14:29:38,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-10 14:29:38,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-11-10 14:29:38,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-11-10 14:29:38,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 14:29:38,368 INFO L407 BasicCegarLoop]: Path program histogram: [15, 3, 1, 1, 1, 1] [2024-11-10 14:29:38,382 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 14:29:38,382 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:29:38,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:29:38 BasicIcfg [2024-11-10 14:29:38,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:29:38,395 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:29:38,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:29:38,396 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:29:38,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:29:09" (3/4) ... [2024-11-10 14:29:38,403 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 14:29:38,410 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 14:29:38,417 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-10 14:29:38,417 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 14:29:38,418 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 14:29:38,503 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:29:38,505 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 14:29:38,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:29:38,506 INFO L158 Benchmark]: Toolchain (without parser) took 30659.16ms. Allocated memory was 180.4MB in the beginning and 509.6MB in the end (delta: 329.3MB). Free memory was 108.8MB in the beginning and 358.8MB in the end (delta: -250.0MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,506 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:29:38,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.93ms. Allocated memory is still 180.4MB. Free memory was 108.6MB in the beginning and 126.2MB in the end (delta: -17.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.32ms. Allocated memory is still 180.4MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,507 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 180.4MB. Free memory was 124.1MB in the beginning and 122.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,507 INFO L158 Benchmark]: IcfgBuilder took 470.36ms. Allocated memory is still 180.4MB. Free memory was 122.7MB in the beginning and 105.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,508 INFO L158 Benchmark]: TraceAbstraction took 29287.70ms. Allocated memory was 180.4MB in the beginning and 509.6MB in the end (delta: 329.3MB). Free memory was 105.3MB in the beginning and 363.0MB in the end (delta: -257.7MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,509 INFO L158 Benchmark]: Witness Printer took 109.72ms. Allocated memory is still 509.6MB. Free memory was 363.0MB in the beginning and 358.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 14:29:38,511 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.93ms. Allocated memory is still 180.4MB. Free memory was 108.6MB in the beginning and 126.2MB in the end (delta: -17.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.32ms. Allocated memory is still 180.4MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 180.4MB. Free memory was 124.1MB in the beginning and 122.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 470.36ms. Allocated memory is still 180.4MB. Free memory was 122.7MB in the beginning and 105.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 29287.70ms. Allocated memory was 180.4MB in the beginning and 509.6MB in the end (delta: 329.3MB). Free memory was 105.3MB in the beginning and 363.0MB in the end (delta: -257.7MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Witness Printer took 109.72ms. Allocated memory is still 509.6MB. Free memory was 363.0MB in the beginning and 358.8MB 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: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: 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, 99 locations, 4 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: 29.1s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7931 SdHoareTripleChecker+Valid, 13.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6856 mSDsluCounter, 14553 SdHoareTripleChecker+Invalid, 11.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13923 mSDsCounter, 650 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26580 IncrementalHoareTripleChecker+Invalid, 27230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 650 mSolverCounterUnsat, 630 mSDtfsCounter, 26580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 463 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2930occurred in iteration=18, InterpolantAutomatonStates: 313, 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, 7.8s InterpolantComputationTime, 1278 NumberOfCodeBlocks, 1278 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1256 ConstructedInterpolants, 0 QuantifiedInterpolants, 8765 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 14:29:38,533 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