./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.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 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:17:15,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:17:15,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:17:15,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:17:15,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:17:15,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:17:15,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:17:15,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:17:15,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:17:15,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:17:15,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:17:15,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:17:15,638 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:17:15,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:17:15,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:17:15,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:17:15,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:17:15,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:17:15,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:17:15,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:17:15,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:17:15,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:17:15,641 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:17:15,642 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:17:15,642 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:17:15,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:17:15,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:17:15,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:17:15,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:17:15,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:17:15,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:17:15,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:17:15,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:17:15,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:17:15,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:17:15,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:17:15,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:17:15,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:17:15,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:17:15,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:17:15,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:17:15,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e [2024-10-14 17:17:15,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:17:15,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:17:15,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:17:15,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:17:15,935 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:17:15,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-10-14 17:17:17,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:17:17,793 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:17:17,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-10-14 17:17:17,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596ac7231/eb2c5648b61745a381bcc7f771c02c26/FLAG1a60b81d2 [2024-10-14 17:17:18,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596ac7231/eb2c5648b61745a381bcc7f771c02c26 [2024-10-14 17:17:18,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:17:18,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:17:18,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:17:18,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:17:18,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:17:18,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55418132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18, skipping insertion in model container [2024-10-14 17:17:18,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:17:18,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:17:18,612 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:17:18,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:17:18,711 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:17:18,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18 WrapperNode [2024-10-14 17:17:18,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:17:18,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:17:18,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:17:18,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:17:18,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,765 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-14 17:17:18,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:17:18,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:17:18,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:17:18,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:17:18,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:17:18,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:17:18,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:17:18,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:17:18,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (1/1) ... [2024-10-14 17:17:18,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:17:18,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:18,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:17:18,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:17:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:17:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:17:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:17:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:17:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-14 17:17:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-14 17:17:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:17:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:17:18,899 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:17:19,061 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:17:19,064 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:17:19,375 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:17:19,375 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:17:19,393 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:17:19,394 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 17:17:19,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:17:19 BoogieIcfgContainer [2024-10-14 17:17:19,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:17:19,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:17:19,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:17:19,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:17:19,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:17:18" (1/3) ... [2024-10-14 17:17:19,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee11993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:17:19, skipping insertion in model container [2024-10-14 17:17:19,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:18" (2/3) ... [2024-10-14 17:17:19,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee11993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:17:19, skipping insertion in model container [2024-10-14 17:17:19,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:17:19" (3/3) ... [2024-10-14 17:17:19,405 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init.i [2024-10-14 17:17:19,424 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:17:19,425 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 17:17:19,425 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:17:19,492 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:17:19,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 187 flow [2024-10-14 17:17:19,607 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-10-14 17:17:19,608 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:17:19,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 189 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-10-14 17:17:19,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 187 flow [2024-10-14 17:17:19,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 90 transitions, 187 flow [2024-10-14 17:17:19,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:17:19,643 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;@360e6ec9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:17:19,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-14 17:17:19,660 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:17:19,660 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-10-14 17:17:19,660 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:17:19,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:19,661 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] [2024-10-14 17:17:19,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:19,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:19,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2036736685, now seen corresponding path program 1 times [2024-10-14 17:17:19,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:19,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751723359] [2024-10-14 17:17:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:20,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751723359] [2024-10-14 17:17:20,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751723359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:20,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:17:20,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:17:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386521333] [2024-10-14 17:17:20,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:20,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:17:20,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:17:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:17:20,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-10-14 17:17:20,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:20,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:20,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-10-14 17:17:20,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:21,125 INFO L124 PetriNetUnfolderBase]: 91/418 cut-off events. [2024-10-14 17:17:21,125 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-14 17:17:21,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 418 events. 91/418 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2003 event pairs, 52 based on Foata normal form. 13/395 useless extension candidates. Maximal degree in co-relation 559. Up to 197 conditions per place. [2024-10-14 17:17:21,130 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 27 selfloop transitions, 22 changer transitions 1/108 dead transitions. [2024-10-14 17:17:21,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 321 flow [2024-10-14 17:17:21,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:17:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:17:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-10-14 17:17:21,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7537037037037037 [2024-10-14 17:17:21,151 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 6 states and 407 transitions. [2024-10-14 17:17:21,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 108 transitions, 321 flow [2024-10-14 17:17:21,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:17:21,164 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 329 flow [2024-10-14 17:17:21,166 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2024-10-14 17:17:21,172 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-10-14 17:17:21,173 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 329 flow [2024-10-14 17:17:21,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:21,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:21,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:21,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:17:21,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:21,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash 460665484, now seen corresponding path program 1 times [2024-10-14 17:17:21,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:21,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239390537] [2024-10-14 17:17:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:21,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:21,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239390537] [2024-10-14 17:17:21,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239390537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:21,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:17:21,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:17:21,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978057878] [2024-10-14 17:17:21,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:21,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 17:17:21,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:21,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 17:17:21,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 17:17:21,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2024-10-14 17:17:21,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 329 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:21,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:21,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2024-10-14 17:17:21,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:21,504 INFO L124 PetriNetUnfolderBase]: 40/253 cut-off events. [2024-10-14 17:17:21,505 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-14 17:17:21,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 253 events. 40/253 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 835 event pairs, 4 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 333. Up to 50 conditions per place. [2024-10-14 17:17:21,510 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 2 changer transitions 5/112 dead transitions. [2024-10-14 17:17:21,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 375 flow [2024-10-14 17:17:21,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:17:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:17:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-10-14 17:17:21,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2024-10-14 17:17:21,514 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 329 flow. Second operand 6 states and 463 transitions. [2024-10-14 17:17:21,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 375 flow [2024-10-14 17:17:21,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:17:21,522 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 347 flow [2024-10-14 17:17:21,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-10-14 17:17:21,524 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2024-10-14 17:17:21,524 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 347 flow [2024-10-14 17:17:21,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:21,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:21,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:21,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:17:21,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:21,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1788191437, now seen corresponding path program 1 times [2024-10-14 17:17:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:21,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340339404] [2024-10-14 17:17:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:21,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:21,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340339404] [2024-10-14 17:17:21,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340339404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:21,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:17:21,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:17:21,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395970552] [2024-10-14 17:17:21,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:21,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:17:21,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:21,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:17:21,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:17:22,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-10-14 17:17:22,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:22,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:22,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-10-14 17:17:22,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:22,140 INFO L124 PetriNetUnfolderBase]: 109/469 cut-off events. [2024-10-14 17:17:22,140 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2024-10-14 17:17:22,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 469 events. 109/469 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2282 event pairs, 36 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 886. Up to 225 conditions per place. [2024-10-14 17:17:22,143 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 46 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2024-10-14 17:17:22,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 128 transitions, 557 flow [2024-10-14 17:17:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:17:22,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:17:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2024-10-14 17:17:22,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-10-14 17:17:22,146 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 347 flow. Second operand 6 states and 404 transitions. [2024-10-14 17:17:22,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 128 transitions, 557 flow [2024-10-14 17:17:22,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 128 transitions, 543 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-14 17:17:22,151 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 515 flow [2024-10-14 17:17:22,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=515, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2024-10-14 17:17:22,152 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-10-14 17:17:22,152 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 515 flow [2024-10-14 17:17:22,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:22,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:22,153 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] [2024-10-14 17:17:22,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:17:22,153 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:22,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:22,154 INFO L85 PathProgramCache]: Analyzing trace with hash 628878030, now seen corresponding path program 1 times [2024-10-14 17:17:22,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:22,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926499854] [2024-10-14 17:17:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:22,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:22,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:22,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926499854] [2024-10-14 17:17:22,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926499854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:22,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:17:22,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:17:22,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341658102] [2024-10-14 17:17:22,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:22,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:17:22,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:22,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:17:22,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:17:22,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2024-10-14 17:17:22,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 515 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:22,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:22,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2024-10-14 17:17:22,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:22,795 INFO L124 PetriNetUnfolderBase]: 140/585 cut-off events. [2024-10-14 17:17:22,796 INFO L125 PetriNetUnfolderBase]: For 340/365 co-relation queries the response was YES. [2024-10-14 17:17:22,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 585 events. 140/585 cut-off events. For 340/365 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3035 event pairs, 14 based on Foata normal form. 4/562 useless extension candidates. Maximal degree in co-relation 1382. Up to 232 conditions per place. [2024-10-14 17:17:22,800 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 46 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2024-10-14 17:17:22,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 176 transitions, 963 flow [2024-10-14 17:17:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:17:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:17:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-10-14 17:17:22,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-10-14 17:17:22,804 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 515 flow. Second operand 6 states and 474 transitions. [2024-10-14 17:17:22,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 176 transitions, 963 flow [2024-10-14 17:17:22,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 176 transitions, 925 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-10-14 17:17:22,815 INFO L231 Difference]: Finished difference. Result has 119 places, 168 transitions, 981 flow [2024-10-14 17:17:22,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=981, PETRI_PLACES=119, PETRI_TRANSITIONS=168} [2024-10-14 17:17:22,819 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-10-14 17:17:22,819 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 168 transitions, 981 flow [2024-10-14 17:17:22,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:22,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:22,820 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] [2024-10-14 17:17:22,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:17:22,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:22,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:22,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1921327265, now seen corresponding path program 1 times [2024-10-14 17:17:22,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:22,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966603315] [2024-10-14 17:17:22,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:22,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:17:23,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:23,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966603315] [2024-10-14 17:17:23,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966603315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:23,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:17:23,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:17:23,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407468323] [2024-10-14 17:17:23,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:23,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:17:23,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:17:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:17:23,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 90 [2024-10-14 17:17:23,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 168 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:23,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:23,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 90 [2024-10-14 17:17:23,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:23,405 INFO L124 PetriNetUnfolderBase]: 125/536 cut-off events. [2024-10-14 17:17:23,405 INFO L125 PetriNetUnfolderBase]: For 639/656 co-relation queries the response was YES. [2024-10-14 17:17:23,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 536 events. 125/536 cut-off events. For 639/656 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2786 event pairs, 6 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1501. Up to 135 conditions per place. [2024-10-14 17:17:23,410 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 55 selfloop transitions, 0 changer transitions 15/167 dead transitions. [2024-10-14 17:17:23,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1105 flow [2024-10-14 17:17:23,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:17:23,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:17:23,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-10-14 17:17:23,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-10-14 17:17:23,412 INFO L175 Difference]: Start difference. First operand has 119 places, 168 transitions, 981 flow. Second operand 6 states and 410 transitions. [2024-10-14 17:17:23,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1105 flow [2024-10-14 17:17:23,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1069 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-14 17:17:23,423 INFO L231 Difference]: Finished difference. Result has 115 places, 152 transitions, 908 flow [2024-10-14 17:17:23,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=115, PETRI_TRANSITIONS=152} [2024-10-14 17:17:23,426 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-10-14 17:17:23,426 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 908 flow [2024-10-14 17:17:23,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:23,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:23,427 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:23,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:17:23,427 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:23,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash 707737008, now seen corresponding path program 1 times [2024-10-14 17:17:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:23,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58168285] [2024-10-14 17:17:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:23,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:24,406 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:24,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:24,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58168285] [2024-10-14 17:17:24,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58168285] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:24,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196301475] [2024-10-14 17:17:24,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:24,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:24,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:24,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:24,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:17:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:24,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 17:17:24,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:24,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:24,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:24,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:24,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:24,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:24,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:24,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:24,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:24,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:24,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:25,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:25,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:25,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:25,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196301475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:25,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:25,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702830827] [2024-10-14 17:17:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:25,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:25,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:25,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:25,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:25,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:25,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 152 transitions, 908 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:25,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:25,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:25,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:26,151 INFO L124 PetriNetUnfolderBase]: 256/858 cut-off events. [2024-10-14 17:17:26,152 INFO L125 PetriNetUnfolderBase]: For 1056/1071 co-relation queries the response was YES. [2024-10-14 17:17:26,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 858 events. 256/858 cut-off events. For 1056/1071 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4920 event pairs, 12 based on Foata normal form. 9/863 useless extension candidates. Maximal degree in co-relation 2921. Up to 297 conditions per place. [2024-10-14 17:17:26,160 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 165 selfloop transitions, 64 changer transitions 0/269 dead transitions. [2024-10-14 17:17:26,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 269 transitions, 2226 flow [2024-10-14 17:17:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 17:17:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 17:17:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 929 transitions. [2024-10-14 17:17:26,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6881481481481482 [2024-10-14 17:17:26,164 INFO L175 Difference]: Start difference. First operand has 115 places, 152 transitions, 908 flow. Second operand 15 states and 929 transitions. [2024-10-14 17:17:26,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 269 transitions, 2226 flow [2024-10-14 17:17:26,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 269 transitions, 2224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:17:26,179 INFO L231 Difference]: Finished difference. Result has 119 places, 198 transitions, 1533 flow [2024-10-14 17:17:26,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1533, PETRI_PLACES=119, PETRI_TRANSITIONS=198} [2024-10-14 17:17:26,180 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-10-14 17:17:26,180 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 198 transitions, 1533 flow [2024-10-14 17:17:26,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:26,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:26,181 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:26,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 17:17:26,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 17:17:26,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:26,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1200885021, now seen corresponding path program 1 times [2024-10-14 17:17:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235083683] [2024-10-14 17:17:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:27,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235083683] [2024-10-14 17:17:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235083683] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137273193] [2024-10-14 17:17:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:27,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:27,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:27,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:17:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:27,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-14 17:17:27,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:27,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:17:27,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-14 17:17:27,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-14 17:17:27,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-14 17:17:27,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:27,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:27,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:27,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:27,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-14 17:17:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:27,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:27,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137273193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:27,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:27,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:27,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082763646] [2024-10-14 17:17:27,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:27,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:27,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:27,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:27,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:28,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-14 17:17:28,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 198 transitions, 1533 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:28,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:28,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-14 17:17:28,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:28,842 INFO L124 PetriNetUnfolderBase]: 256/954 cut-off events. [2024-10-14 17:17:28,842 INFO L125 PetriNetUnfolderBase]: For 1830/1868 co-relation queries the response was YES. [2024-10-14 17:17:28,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 954 events. 256/954 cut-off events. For 1830/1868 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5998 event pairs, 16 based on Foata normal form. 7/960 useless extension candidates. Maximal degree in co-relation 3568. Up to 445 conditions per place. [2024-10-14 17:17:28,852 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 158 selfloop transitions, 43 changer transitions 0/254 dead transitions. [2024-10-14 17:17:28,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 254 transitions, 2355 flow [2024-10-14 17:17:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 17:17:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 17:17:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2024-10-14 17:17:28,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7303703703703703 [2024-10-14 17:17:28,856 INFO L175 Difference]: Start difference. First operand has 119 places, 198 transitions, 1533 flow. Second operand 15 states and 986 transitions. [2024-10-14 17:17:28,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 254 transitions, 2355 flow [2024-10-14 17:17:28,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 254 transitions, 2310 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-14 17:17:28,877 INFO L231 Difference]: Finished difference. Result has 140 places, 236 transitions, 2020 flow [2024-10-14 17:17:28,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1516, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2020, PETRI_PLACES=140, PETRI_TRANSITIONS=236} [2024-10-14 17:17:28,880 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2024-10-14 17:17:28,880 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 236 transitions, 2020 flow [2024-10-14 17:17:28,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:28,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:28,881 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:28,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:17:29,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-14 17:17:29,083 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:29,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash 35174206, now seen corresponding path program 2 times [2024-10-14 17:17:29,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:29,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107619346] [2024-10-14 17:17:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:29,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:29,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107619346] [2024-10-14 17:17:29,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107619346] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192810666] [2024-10-14 17:17:29,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:17:29,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:29,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:29,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:29,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:17:30,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:17:30,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:30,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 17:17:30,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:30,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:30,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:30,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:30,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:30,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:30,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:30,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:30,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:30,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192810666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:30,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:30,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:30,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478596984] [2024-10-14 17:17:30,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:30,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:30,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:30,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:30,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:30,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 236 transitions, 2020 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:30,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:30,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:30,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:31,499 INFO L124 PetriNetUnfolderBase]: 408/1477 cut-off events. [2024-10-14 17:17:31,500 INFO L125 PetriNetUnfolderBase]: For 4016/4054 co-relation queries the response was YES. [2024-10-14 17:17:31,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6153 conditions, 1477 events. 408/1477 cut-off events. For 4016/4054 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10677 event pairs, 30 based on Foata normal form. 11/1482 useless extension candidates. Maximal degree in co-relation 6114. Up to 497 conditions per place. [2024-10-14 17:17:31,517 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 267 selfloop transitions, 81 changer transitions 0/391 dead transitions. [2024-10-14 17:17:31,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 391 transitions, 4244 flow [2024-10-14 17:17:31,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 17:17:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-14 17:17:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 799 transitions. [2024-10-14 17:17:31,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6829059829059829 [2024-10-14 17:17:31,519 INFO L175 Difference]: Start difference. First operand has 140 places, 236 transitions, 2020 flow. Second operand 13 states and 799 transitions. [2024-10-14 17:17:31,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 391 transitions, 4244 flow [2024-10-14 17:17:31,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 391 transitions, 4208 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-14 17:17:31,595 INFO L231 Difference]: Finished difference. Result has 161 places, 285 transitions, 2906 flow [2024-10-14 17:17:31,596 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2906, PETRI_PLACES=161, PETRI_TRANSITIONS=285} [2024-10-14 17:17:31,598 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 72 predicate places. [2024-10-14 17:17:31,598 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 285 transitions, 2906 flow [2024-10-14 17:17:31,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:31,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:31,600 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:31,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:17:31,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:31,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:31,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash 808741728, now seen corresponding path program 3 times [2024-10-14 17:17:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:31,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469781320] [2024-10-14 17:17:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:31,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:32,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:32,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469781320] [2024-10-14 17:17:32,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469781320] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:32,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904694094] [2024-10-14 17:17:32,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 17:17:32,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:32,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:32,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:32,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 17:17:32,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 17:17:32,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:32,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 17:17:32,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:32,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:32,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:32,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:32,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:33,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:33,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:33,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:33,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:33,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:33,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:33,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:33,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904694094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:33,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:33,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:33,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442426866] [2024-10-14 17:17:33,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:33,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:33,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:33,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:33,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:33,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 285 transitions, 2906 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:33,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:33,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:33,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:34,415 INFO L124 PetriNetUnfolderBase]: 555/1991 cut-off events. [2024-10-14 17:17:34,416 INFO L125 PetriNetUnfolderBase]: For 7089/7151 co-relation queries the response was YES. [2024-10-14 17:17:34,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8956 conditions, 1991 events. 555/1991 cut-off events. For 7089/7151 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15727 event pairs, 35 based on Foata normal form. 12/1995 useless extension candidates. Maximal degree in co-relation 8908. Up to 788 conditions per place. [2024-10-14 17:17:34,442 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 336 selfloop transitions, 87 changer transitions 0/466 dead transitions. [2024-10-14 17:17:34,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 466 transitions, 5653 flow [2024-10-14 17:17:34,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 17:17:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-14 17:17:34,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 865 transitions. [2024-10-14 17:17:34,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6865079365079365 [2024-10-14 17:17:34,445 INFO L175 Difference]: Start difference. First operand has 161 places, 285 transitions, 2906 flow. Second operand 14 states and 865 transitions. [2024-10-14 17:17:34,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 466 transitions, 5653 flow [2024-10-14 17:17:34,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 466 transitions, 5590 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-10-14 17:17:34,525 INFO L231 Difference]: Finished difference. Result has 182 places, 338 transitions, 3947 flow [2024-10-14 17:17:34,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=2854, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3947, PETRI_PLACES=182, PETRI_TRANSITIONS=338} [2024-10-14 17:17:34,528 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 93 predicate places. [2024-10-14 17:17:34,528 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 338 transitions, 3947 flow [2024-10-14 17:17:34,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:34,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:34,529 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:34,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 17:17:34,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:34,730 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:34,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:34,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1876887687, now seen corresponding path program 2 times [2024-10-14 17:17:34,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:34,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12943606] [2024-10-14 17:17:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:34,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:35,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:35,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12943606] [2024-10-14 17:17:35,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12943606] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:35,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049176542] [2024-10-14 17:17:35,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:17:35,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:35,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:35,299 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:35,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 17:17:35,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:17:35,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:35,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-14 17:17:35,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:35,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:17:35,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-14 17:17:35,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-14 17:17:35,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-14 17:17:35,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:35,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:35,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:35,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:35,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:35,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-14 17:17:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:35,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:35,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049176542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:35,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:35,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:35,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098341919] [2024-10-14 17:17:35,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:35,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:35,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:35,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:35,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:36,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-14 17:17:36,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 338 transitions, 3947 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:36,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:36,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-14 17:17:36,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:37,260 INFO L124 PetriNetUnfolderBase]: 596/2305 cut-off events. [2024-10-14 17:17:37,260 INFO L125 PetriNetUnfolderBase]: For 10036/10164 co-relation queries the response was YES. [2024-10-14 17:17:37,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 2305 events. 596/2305 cut-off events. For 10036/10164 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 19556 event pairs, 43 based on Foata normal form. 27/2329 useless extension candidates. Maximal degree in co-relation 10627. Up to 1005 conditions per place. [2024-10-14 17:17:37,293 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 260 selfloop transitions, 100 changer transitions 0/421 dead transitions. [2024-10-14 17:17:37,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 421 transitions, 5629 flow [2024-10-14 17:17:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:17:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:17:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1377 transitions. [2024-10-14 17:17:37,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-10-14 17:17:37,297 INFO L175 Difference]: Start difference. First operand has 182 places, 338 transitions, 3947 flow. Second operand 21 states and 1377 transitions. [2024-10-14 17:17:37,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 421 transitions, 5629 flow [2024-10-14 17:17:37,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 5502 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-10-14 17:17:37,412 INFO L231 Difference]: Finished difference. Result has 205 places, 377 transitions, 4683 flow [2024-10-14 17:17:37,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3824, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4683, PETRI_PLACES=205, PETRI_TRANSITIONS=377} [2024-10-14 17:17:37,413 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 116 predicate places. [2024-10-14 17:17:37,413 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 377 transitions, 4683 flow [2024-10-14 17:17:37,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:37,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:37,414 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:37,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 17:17:37,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 17:17:37,614 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:37,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:37,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1204398042, now seen corresponding path program 4 times [2024-10-14 17:17:37,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:37,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391836198] [2024-10-14 17:17:37,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:37,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:38,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391836198] [2024-10-14 17:17:38,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391836198] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:38,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094701253] [2024-10-14 17:17:38,231 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 17:17:38,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:38,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:38,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:38,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 17:17:38,319 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 17:17:38,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:38,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:17:38,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:38,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:38,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:38,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:38,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:38,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:38,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:38,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:38,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:38,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:38,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:38,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:38,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094701253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:38,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:38,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:38,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690605462] [2024-10-14 17:17:38,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:38,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:38,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:38,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:38,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:39,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:39,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 377 transitions, 4683 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:39,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:39,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:39,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:40,079 INFO L124 PetriNetUnfolderBase]: 878/3316 cut-off events. [2024-10-14 17:17:40,079 INFO L125 PetriNetUnfolderBase]: For 15240/15342 co-relation queries the response was YES. [2024-10-14 17:17:40,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16135 conditions, 3316 events. 878/3316 cut-off events. For 15240/15342 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 30830 event pairs, 88 based on Foata normal form. 17/3318 useless extension candidates. Maximal degree in co-relation 16072. Up to 768 conditions per place. [2024-10-14 17:17:40,117 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 486 selfloop transitions, 127 changer transitions 0/659 dead transitions. [2024-10-14 17:17:40,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 659 transitions, 9268 flow [2024-10-14 17:17:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 17:17:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-14 17:17:40,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1057 transitions. [2024-10-14 17:17:40,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6908496732026144 [2024-10-14 17:17:40,121 INFO L175 Difference]: Start difference. First operand has 205 places, 377 transitions, 4683 flow. Second operand 17 states and 1057 transitions. [2024-10-14 17:17:40,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 659 transitions, 9268 flow [2024-10-14 17:17:40,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 659 transitions, 9160 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-10-14 17:17:40,324 INFO L231 Difference]: Finished difference. Result has 222 places, 435 transitions, 6015 flow [2024-10-14 17:17:40,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=4614, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6015, PETRI_PLACES=222, PETRI_TRANSITIONS=435} [2024-10-14 17:17:40,326 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 133 predicate places. [2024-10-14 17:17:40,326 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 435 transitions, 6015 flow [2024-10-14 17:17:40,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:40,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:40,327 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:40,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 17:17:40,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:40,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:40,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1681440684, now seen corresponding path program 5 times [2024-10-14 17:17:40,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:40,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402986933] [2024-10-14 17:17:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:41,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:41,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402986933] [2024-10-14 17:17:41,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402986933] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:41,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891243583] [2024-10-14 17:17:41,194 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 17:17:41,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:41,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:41,195 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:41,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 17:17:41,302 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:17:41,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:41,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:17:41,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:41,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:41,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:41,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:41,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:41,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:41,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:41,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:41,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:41,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891243583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:41,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:41,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:41,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692626781] [2024-10-14 17:17:41,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:41,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:41,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:42,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:42,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 435 transitions, 6015 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:42,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:42,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:42,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:43,341 INFO L124 PetriNetUnfolderBase]: 1063/3932 cut-off events. [2024-10-14 17:17:43,341 INFO L125 PetriNetUnfolderBase]: For 21592/21715 co-relation queries the response was YES. [2024-10-14 17:17:43,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20012 conditions, 3932 events. 1063/3932 cut-off events. For 21592/21715 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 37876 event pairs, 81 based on Foata normal form. 18/3935 useless extension candidates. Maximal degree in co-relation 19941. Up to 1457 conditions per place. [2024-10-14 17:17:43,398 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 536 selfloop transitions, 134 changer transitions 0/716 dead transitions. [2024-10-14 17:17:43,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 716 transitions, 10691 flow [2024-10-14 17:17:43,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 17:17:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-14 17:17:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1006 transitions. [2024-10-14 17:17:43,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6986111111111111 [2024-10-14 17:17:43,401 INFO L175 Difference]: Start difference. First operand has 222 places, 435 transitions, 6015 flow. Second operand 16 states and 1006 transitions. [2024-10-14 17:17:43,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 716 transitions, 10691 flow [2024-10-14 17:17:43,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 716 transitions, 10485 flow, removed 96 selfloop flow, removed 2 redundant places. [2024-10-14 17:17:43,663 INFO L231 Difference]: Finished difference. Result has 244 places, 485 transitions, 7210 flow [2024-10-14 17:17:43,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=5811, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7210, PETRI_PLACES=244, PETRI_TRANSITIONS=485} [2024-10-14 17:17:43,664 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 155 predicate places. [2024-10-14 17:17:43,664 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 485 transitions, 7210 flow [2024-10-14 17:17:43,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:43,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:43,664 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:43,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 17:17:43,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:43,865 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:43,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:43,866 INFO L85 PathProgramCache]: Analyzing trace with hash -208675799, now seen corresponding path program 3 times [2024-10-14 17:17:43,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:43,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641772782] [2024-10-14 17:17:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:43,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:44,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:44,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641772782] [2024-10-14 17:17:44,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641772782] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:44,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732164433] [2024-10-14 17:17:44,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 17:17:44,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:44,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:44,482 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:44,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 17:17:44,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 17:17:44,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:44,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-14 17:17:44,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:44,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:17:44,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-14 17:17:44,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-14 17:17:44,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-14 17:17:44,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:44,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:44,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:44,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:44,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:44,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-14 17:17:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:44,935 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:44,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732164433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:44,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:44,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:44,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889334868] [2024-10-14 17:17:44,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:44,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:44,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:44,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:44,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:45,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-14 17:17:45,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 485 transitions, 7210 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:45,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:45,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-14 17:17:45,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:46,785 INFO L124 PetriNetUnfolderBase]: 1129/4377 cut-off events. [2024-10-14 17:17:46,785 INFO L125 PetriNetUnfolderBase]: For 28552/28850 co-relation queries the response was YES. [2024-10-14 17:17:46,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22870 conditions, 4377 events. 1129/4377 cut-off events. For 28552/28850 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 44078 event pairs, 92 based on Foata normal form. 62/4426 useless extension candidates. Maximal degree in co-relation 22790. Up to 1905 conditions per place. [2024-10-14 17:17:46,926 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 368 selfloop transitions, 191 changer transitions 0/635 dead transitions. [2024-10-14 17:17:46,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 635 transitions, 10411 flow [2024-10-14 17:17:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 17:17:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-14 17:17:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1514 transitions. [2024-10-14 17:17:46,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7314009661835749 [2024-10-14 17:17:46,930 INFO L175 Difference]: Start difference. First operand has 244 places, 485 transitions, 7210 flow. Second operand 23 states and 1514 transitions. [2024-10-14 17:17:46,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 635 transitions, 10411 flow [2024-10-14 17:17:47,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 635 transitions, 10121 flow, removed 125 selfloop flow, removed 3 redundant places. [2024-10-14 17:17:47,322 INFO L231 Difference]: Finished difference. Result has 275 places, 573 transitions, 9070 flow [2024-10-14 17:17:47,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=6938, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9070, PETRI_PLACES=275, PETRI_TRANSITIONS=573} [2024-10-14 17:17:47,323 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 186 predicate places. [2024-10-14 17:17:47,323 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 573 transitions, 9070 flow [2024-10-14 17:17:47,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:47,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:47,327 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:47,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 17:17:47,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 17:17:47,528 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:47,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash 361098670, now seen corresponding path program 6 times [2024-10-14 17:17:47,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:47,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841472101] [2024-10-14 17:17:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:48,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:48,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841472101] [2024-10-14 17:17:48,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841472101] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:48,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632951409] [2024-10-14 17:17:48,285 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 17:17:48,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:48,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:48,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:48,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 17:17:48,398 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-14 17:17:48,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:48,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 17:17:48,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:48,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:48,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:48,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:48,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:48,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:48,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:48,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:48,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:48,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:48,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:48,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:48,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632951409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:48,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:48,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:48,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60687950] [2024-10-14 17:17:48,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:48,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:48,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:49,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:49,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 573 transitions, 9070 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:49,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:49,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:49,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:50,615 INFO L124 PetriNetUnfolderBase]: 1182/4554 cut-off events. [2024-10-14 17:17:50,615 INFO L125 PetriNetUnfolderBase]: For 33273/33392 co-relation queries the response was YES. [2024-10-14 17:17:50,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25054 conditions, 4554 events. 1182/4554 cut-off events. For 33273/33392 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 46016 event pairs, 114 based on Foata normal form. 22/4561 useless extension candidates. Maximal degree in co-relation 24963. Up to 1131 conditions per place. [2024-10-14 17:17:50,669 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 594 selfloop transitions, 169 changer transitions 0/821 dead transitions. [2024-10-14 17:17:50,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 821 transitions, 13770 flow [2024-10-14 17:17:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 17:17:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 17:17:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 941 transitions. [2024-10-14 17:17:50,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697037037037037 [2024-10-14 17:17:50,671 INFO L175 Difference]: Start difference. First operand has 275 places, 573 transitions, 9070 flow. Second operand 15 states and 941 transitions. [2024-10-14 17:17:50,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 821 transitions, 13770 flow [2024-10-14 17:17:51,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 821 transitions, 13690 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-10-14 17:17:51,219 INFO L231 Difference]: Finished difference. Result has 292 places, 610 transitions, 10293 flow [2024-10-14 17:17:51,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=8993, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10293, PETRI_PLACES=292, PETRI_TRANSITIONS=610} [2024-10-14 17:17:51,220 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 203 predicate places. [2024-10-14 17:17:51,220 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 610 transitions, 10293 flow [2024-10-14 17:17:51,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:51,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:51,220 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:51,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 17:17:51,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 17:17:51,422 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:51,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:51,422 INFO L85 PathProgramCache]: Analyzing trace with hash 300743488, now seen corresponding path program 7 times [2024-10-14 17:17:51,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:51,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253359733] [2024-10-14 17:17:51,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:51,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:52,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:52,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253359733] [2024-10-14 17:17:52,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253359733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:52,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895064844] [2024-10-14 17:17:52,230 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 17:17:52,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:52,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:52,232 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:52,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 17:17:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:52,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 17:17:52,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:52,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:17:52,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:17:52,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:52,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:17:52,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:52,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:17:52,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:52,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:52,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:52,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:52,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:52,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:17:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:52,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895064844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:52,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224515890] [2024-10-14 17:17:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:52,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:53,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:17:53,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 610 transitions, 10293 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:53,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:53,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:17:53,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:54,370 INFO L124 PetriNetUnfolderBase]: 1193/4585 cut-off events. [2024-10-14 17:17:54,371 INFO L125 PetriNetUnfolderBase]: For 39150/39279 co-relation queries the response was YES. [2024-10-14 17:17:54,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26218 conditions, 4585 events. 1193/4585 cut-off events. For 39150/39279 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 46442 event pairs, 99 based on Foata normal form. 16/4590 useless extension candidates. Maximal degree in co-relation 26119. Up to 1721 conditions per place. [2024-10-14 17:17:54,429 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 518 selfloop transitions, 174 changer transitions 0/750 dead transitions. [2024-10-14 17:17:54,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 750 transitions, 13515 flow [2024-10-14 17:17:54,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 17:17:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-14 17:17:54,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 881 transitions. [2024-10-14 17:17:54,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6992063492063492 [2024-10-14 17:17:54,432 INFO L175 Difference]: Start difference. First operand has 292 places, 610 transitions, 10293 flow. Second operand 14 states and 881 transitions. [2024-10-14 17:17:54,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 750 transitions, 13515 flow [2024-10-14 17:17:55,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 750 transitions, 12984 flow, removed 159 selfloop flow, removed 7 redundant places. [2024-10-14 17:17:55,067 INFO L231 Difference]: Finished difference. Result has 304 places, 638 transitions, 10753 flow [2024-10-14 17:17:55,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9776, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10753, PETRI_PLACES=304, PETRI_TRANSITIONS=638} [2024-10-14 17:17:55,068 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 215 predicate places. [2024-10-14 17:17:55,068 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 638 transitions, 10753 flow [2024-10-14 17:17:55,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:55,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:55,068 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:55,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 17:17:55,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 17:17:55,269 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:55,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:55,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1447400219, now seen corresponding path program 4 times [2024-10-14 17:17:55,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:55,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728883056] [2024-10-14 17:17:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:55,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:55,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:55,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728883056] [2024-10-14 17:17:55,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728883056] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:17:55,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684578923] [2024-10-14 17:17:55,789 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 17:17:55,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:17:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:17:55,791 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:17:55,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 17:17:55,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 17:17:55,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:17:55,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:17:55,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:17:56,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:17:56,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-14 17:17:56,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-14 17:17:56,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-14 17:17:56,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:56,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:56,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:56,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:17:56,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:17:56,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-14 17:17:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:56,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:17:56,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684578923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:56,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:17:56,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:17:56,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957341388] [2024-10-14 17:17:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:56,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:17:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:17:56,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:17:56,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-14 17:17:56,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 638 transitions, 10753 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:56,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:56,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-14 17:17:56,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:58,461 INFO L124 PetriNetUnfolderBase]: 1313/5136 cut-off events. [2024-10-14 17:17:58,461 INFO L125 PetriNetUnfolderBase]: For 45174/45544 co-relation queries the response was YES. [2024-10-14 17:17:58,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29574 conditions, 5136 events. 1313/5136 cut-off events. For 45174/45544 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 53660 event pairs, 96 based on Foata normal form. 90/5215 useless extension candidates. Maximal degree in co-relation 29469. Up to 1975 conditions per place. [2024-10-14 17:17:58,533 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 465 selfloop transitions, 267 changer transitions 0/816 dead transitions. [2024-10-14 17:17:58,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 816 transitions, 15015 flow [2024-10-14 17:17:58,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 17:17:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-14 17:17:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1528 transitions. [2024-10-14 17:17:58,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7381642512077294 [2024-10-14 17:17:58,537 INFO L175 Difference]: Start difference. First operand has 304 places, 638 transitions, 10753 flow. Second operand 23 states and 1528 transitions. [2024-10-14 17:17:58,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 816 transitions, 15015 flow [2024-10-14 17:17:59,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 816 transitions, 14712 flow, removed 26 selfloop flow, removed 7 redundant places. [2024-10-14 17:17:59,172 INFO L231 Difference]: Finished difference. Result has 329 places, 723 transitions, 12979 flow [2024-10-14 17:17:59,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10494, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12979, PETRI_PLACES=329, PETRI_TRANSITIONS=723} [2024-10-14 17:17:59,173 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 240 predicate places. [2024-10-14 17:17:59,174 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 723 transitions, 12979 flow [2024-10-14 17:17:59,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:17:59,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:59,174 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:17:59,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 17:17:59,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 17:17:59,375 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:17:59,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:59,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1274136676, now seen corresponding path program 8 times [2024-10-14 17:17:59,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:59,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873427619] [2024-10-14 17:17:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:18:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:00,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:18:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873427619] [2024-10-14 17:18:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873427619] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:18:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750881056] [2024-10-14 17:18:00,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:18:00,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:18:00,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:18:00,080 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:18:00,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 17:18:00,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:18:00,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:18:00,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 17:18:00,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:18:00,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:18:00,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:18:00,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:18:00,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:18:00,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:00,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:00,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:00,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:18:00,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2024-10-14 17:18:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:00,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:18:00,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750881056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:18:00,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:18:00,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2024-10-14 17:18:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743181548] [2024-10-14 17:18:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:18:00,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:18:00,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:18:00,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:18:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-10-14 17:18:01,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 90 [2024-10-14 17:18:01,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 723 transitions, 12979 flow. Second operand has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 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) [2024-10-14 17:18:01,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:18:01,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 90 [2024-10-14 17:18:01,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:18:02,629 INFO L124 PetriNetUnfolderBase]: 1446/5469 cut-off events. [2024-10-14 17:18:02,629 INFO L125 PetriNetUnfolderBase]: For 55606/55749 co-relation queries the response was YES. [2024-10-14 17:18:02,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33505 conditions, 5469 events. 1446/5469 cut-off events. For 55606/55749 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 57241 event pairs, 163 based on Foata normal form. 16/5463 useless extension candidates. Maximal degree in co-relation 33390. Up to 1476 conditions per place. [2024-10-14 17:18:02,713 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 622 selfloop transitions, 227 changer transitions 0/887 dead transitions. [2024-10-14 17:18:02,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 887 transitions, 17176 flow [2024-10-14 17:18:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 17:18:02,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-14 17:18:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 808 transitions. [2024-10-14 17:18:02,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6905982905982906 [2024-10-14 17:18:02,715 INFO L175 Difference]: Start difference. First operand has 329 places, 723 transitions, 12979 flow. Second operand 13 states and 808 transitions. [2024-10-14 17:18:02,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 887 transitions, 17176 flow [2024-10-14 17:18:03,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 887 transitions, 17062 flow, removed 47 selfloop flow, removed 3 redundant places. [2024-10-14 17:18:03,579 INFO L231 Difference]: Finished difference. Result has 344 places, 753 transitions, 14242 flow [2024-10-14 17:18:03,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=12866, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14242, PETRI_PLACES=344, PETRI_TRANSITIONS=753} [2024-10-14 17:18:03,581 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 255 predicate places. [2024-10-14 17:18:03,581 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 753 transitions, 14242 flow [2024-10-14 17:18:03,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 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) [2024-10-14 17:18:03,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:18:03,582 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:18:03,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-14 17:18:03,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 17:18:03,782 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:18:03,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:18:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash -27766914, now seen corresponding path program 9 times [2024-10-14 17:18:03,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:18:03,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458487834] [2024-10-14 17:18:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:18:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:18:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:18:04,478 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:04,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:18:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458487834] [2024-10-14 17:18:04,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458487834] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:18:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836516772] [2024-10-14 17:18:04,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 17:18:04,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:18:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:18:04,481 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:18:04,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 17:18:04,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 17:18:04,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:18:04,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-14 17:18:04,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:18:04,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:18:04,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:18:04,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:18:04,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:18:04,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:04,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:04,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:04,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:18:04,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-14 17:18:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:04,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:18:04,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836516772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:18:04,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:18:04,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-14 17:18:04,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144481502] [2024-10-14 17:18:04,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:18:04,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:18:04,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:18:04,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:18:04,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:18:05,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-14 17:18:05,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 753 transitions, 14242 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:18:05,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:18:05,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-14 17:18:05,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:18:07,278 INFO L124 PetriNetUnfolderBase]: 1375/5326 cut-off events. [2024-10-14 17:18:07,279 INFO L125 PetriNetUnfolderBase]: For 60242/60359 co-relation queries the response was YES. [2024-10-14 17:18:07,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33689 conditions, 5326 events. 1375/5326 cut-off events. For 60242/60359 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 56124 event pairs, 100 based on Foata normal form. 27/5336 useless extension candidates. Maximal degree in co-relation 33567. Up to 2201 conditions per place. [2024-10-14 17:18:07,354 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 632 selfloop transitions, 213 changer transitions 0/916 dead transitions. [2024-10-14 17:18:07,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 916 transitions, 18410 flow [2024-10-14 17:18:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 17:18:07,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-14 17:18:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1053 transitions. [2024-10-14 17:18:07,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882352941176471 [2024-10-14 17:18:07,357 INFO L175 Difference]: Start difference. First operand has 344 places, 753 transitions, 14242 flow. Second operand 17 states and 1053 transitions. [2024-10-14 17:18:07,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 916 transitions, 18410 flow [2024-10-14 17:18:08,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 916 transitions, 18219 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-10-14 17:18:08,253 INFO L231 Difference]: Finished difference. Result has 361 places, 781 transitions, 15217 flow [2024-10-14 17:18:08,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=14051, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15217, PETRI_PLACES=361, PETRI_TRANSITIONS=781} [2024-10-14 17:18:08,254 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 272 predicate places. [2024-10-14 17:18:08,254 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 781 transitions, 15217 flow [2024-10-14 17:18:08,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:18:08,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:18:08,255 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:18:08,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 17:18:08,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 17:18:08,456 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-14 17:18:08,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:18:08,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1313629989, now seen corresponding path program 5 times [2024-10-14 17:18:08,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:18:08,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79306119] [2024-10-14 17:18:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:18:08,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:18:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:18:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:08,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:18:08,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79306119] [2024-10-14 17:18:08,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79306119] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:18:08,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243793009] [2024-10-14 17:18:08,987 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 17:18:08,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:18:08,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:18:08,990 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:18:08,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 17:18:09,124 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:18:09,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:18:09,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-14 17:18:09,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:18:09,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:18:09,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-14 17:18:09,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-10-14 17:18:09,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-10-14 17:18:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:18:09,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:18:09,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-10-14 17:18:09,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:09,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:18:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:18:12,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243793009] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 17:18:12,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 17:18:12,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 14] total 34 [2024-10-14 17:18:12,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640827797] [2024-10-14 17:18:12,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:18:12,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 17:18:12,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:18:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 17:18:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1013, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 17:18:17,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-14 17:18:21,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-14 17:18:26,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-14 17:18:31,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-14 17:18:35,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]