./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.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 dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:34:39,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:34:39,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:34:39,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:34:39,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:34:39,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:34:39,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:34:39,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:34:39,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:34:39,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:34:39,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:34:39,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:34:39,491 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:34:39,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:34:39,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:34:39,492 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:34:39,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:34:39,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:34:39,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:34:39,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:34:39,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:34:39,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:34:39,495 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:34:39,495 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:34:39,495 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:34:39,495 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:34:39,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:34:39,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:34:39,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:34:39,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:34:39,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:34:39,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:34:39,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:34:39,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:34:39,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:34:39,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:34:39,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:34:39,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:34:39,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:34:39,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:34:39,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:34:39,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-11-12 12:34:39,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:34:39,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:34:39,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:34:39,802 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:34:39,802 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:34:39,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-12 12:34:41,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:34:41,664 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:34:41,666 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-12 12:34:41,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e023067/570eb34642244b039253a30552a0aab2/FLAGa95cbf4fe [2024-11-12 12:34:41,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e023067/570eb34642244b039253a30552a0aab2 [2024-11-12 12:34:41,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:34:41,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:34:41,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:34:41,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:34:41,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:34:41,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:34:41" (1/1) ... [2024-11-12 12:34:41,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b75724f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:41, skipping insertion in model container [2024-11-12 12:34:41,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:34:41" (1/1) ... [2024-11-12 12:34:41,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:34:42,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:34:42,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:34:42,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:34:42,423 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:34:42,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42 WrapperNode [2024-11-12 12:34:42,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:34:42,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:34:42,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:34:42,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:34:42,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,504 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 348 [2024-11-12 12:34:42,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:34:42,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:34:42,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:34:42,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:34:42,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:34:42,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:34:42,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:34:42,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:34:42,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (1/1) ... [2024-11-12 12:34:42,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:34:42,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:42,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:34:42,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:34:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:34:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:34:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:34:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:34:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:34:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:34:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:34:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:34:42,690 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:34:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:34:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:34:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:34:42,694 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:34:42,845 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:34:42,847 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:34:43,541 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:34:43,541 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:34:43,592 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:34:43,596 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-12 12:34:43,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:34:43 BoogieIcfgContainer [2024-11-12 12:34:43,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:34:43,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:34:43,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:34:43,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:34:43,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:34:41" (1/3) ... [2024-11-12 12:34:43,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ccf5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:34:43, skipping insertion in model container [2024-11-12 12:34:43,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:42" (2/3) ... [2024-11-12 12:34:43,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ccf5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:34:43, skipping insertion in model container [2024-11-12 12:34:43,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:34:43" (3/3) ... [2024-11-12 12:34:43,608 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-11-12 12:34:43,628 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:34:43,629 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-12 12:34:43,629 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:34:43,745 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:34:43,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 354 transitions, 715 flow [2024-11-12 12:34:43,965 INFO L124 PetriNetUnfolderBase]: 48/483 cut-off events. [2024-11-12 12:34:43,966 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:34:43,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 483 events. 48/483 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1659 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-11-12 12:34:43,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 324 places, 354 transitions, 715 flow [2024-11-12 12:34:43,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 354 transitions, 715 flow [2024-11-12 12:34:44,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:44,012 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;@5d13193, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:44,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 12:34:44,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:44,039 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-12 12:34:44,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:44,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:44,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:44,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:44,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:44,048 INFO L85 PathProgramCache]: Analyzing trace with hash 709230511, now seen corresponding path program 1 times [2024-11-12 12:34:44,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:44,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107993611] [2024-11-12 12:34:44,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:44,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:44,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:44,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107993611] [2024-11-12 12:34:44,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107993611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:44,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:44,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:44,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837739984] [2024-11-12 12:34:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:44,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:44,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:44,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:44,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 354 [2024-11-12 12:34:44,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 354 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:44,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:44,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 354 [2024-11-12 12:34:44,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:45,021 INFO L124 PetriNetUnfolderBase]: 85/1310 cut-off events. [2024-11-12 12:34:45,021 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:34:45,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1310 events. 85/1310 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8317 event pairs, 72 based on Foata normal form. 205/1399 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-11-12 12:34:45,042 INFO L140 encePairwiseOnDemand]: 322/354 looper letters, 23 selfloop transitions, 2 changer transitions 1/322 dead transitions. [2024-11-12 12:34:45,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 322 transitions, 701 flow [2024-11-12 12:34:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2024-11-12 12:34:45,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8973634651600754 [2024-11-12 12:34:45,067 INFO L175 Difference]: Start difference. First operand has 324 places, 354 transitions, 715 flow. Second operand 3 states and 953 transitions. [2024-11-12 12:34:45,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 322 transitions, 701 flow [2024-11-12 12:34:45,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 322 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:45,083 INFO L231 Difference]: Finished difference. Result has 323 places, 321 transitions, 659 flow [2024-11-12 12:34:45,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=323, PETRI_TRANSITIONS=321} [2024-11-12 12:34:45,093 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, -1 predicate places. [2024-11-12 12:34:45,093 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 321 transitions, 659 flow [2024-11-12 12:34:45,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:45,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:45,095 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:45,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:34:45,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1439344414, now seen corresponding path program 1 times [2024-11-12 12:34:45,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:45,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299629354] [2024-11-12 12:34:45,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:45,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:45,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:45,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299629354] [2024-11-12 12:34:45,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299629354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:45,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362556920] [2024-11-12 12:34:45,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:45,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:45,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:45,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:45,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 12:34:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:45,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 12:34:45,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:45,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:45,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362556920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:45,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:45,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 12:34:45,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403221409] [2024-11-12 12:34:45,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:45,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:34:45,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:45,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:34:45,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 12:34:45,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-12 12:34:45,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 321 transitions, 659 flow. Second operand has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:45,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:45,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-12 12:34:45,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:46,069 INFO L124 PetriNetUnfolderBase]: 85/1316 cut-off events. [2024-11-12 12:34:46,070 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-12 12:34:46,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 1316 events. 85/1316 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8311 event pairs, 72 based on Foata normal form. 2/1203 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-11-12 12:34:46,080 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 27 selfloop transitions, 9 changer transitions 0/329 dead transitions. [2024-11-12 12:34:46,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 329 transitions, 749 flow [2024-11-12 12:34:46,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:34:46,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:34:46,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2702 transitions. [2024-11-12 12:34:46,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8480853735091023 [2024-11-12 12:34:46,087 INFO L175 Difference]: Start difference. First operand has 323 places, 321 transitions, 659 flow. Second operand 9 states and 2702 transitions. [2024-11-12 12:34:46,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 329 transitions, 749 flow [2024-11-12 12:34:46,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:46,093 INFO L231 Difference]: Finished difference. Result has 332 places, 327 transitions, 707 flow [2024-11-12 12:34:46,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=707, PETRI_PLACES=332, PETRI_TRANSITIONS=327} [2024-11-12 12:34:46,095 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-12 12:34:46,095 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 327 transitions, 707 flow [2024-11-12 12:34:46,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:46,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:46,098 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:46,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 12:34:46,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:46,302 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:46,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:46,304 INFO L85 PathProgramCache]: Analyzing trace with hash -909527618, now seen corresponding path program 2 times [2024-11-12 12:34:46,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:46,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136667572] [2024-11-12 12:34:46,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:46,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:46,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136667572] [2024-11-12 12:34:46,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136667572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255692616] [2024-11-12 12:34:46,579 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:34:46,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:46,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:46,582 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:46,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 12:34:46,695 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:34:46,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:34:46,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 12:34:46,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:46,797 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 [2024-11-12 12:34:46,834 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 [2024-11-12 12:34:46,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:46,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-12 12:34:46,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:46,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-12 12:34:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-12 12:34:46,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:34:46,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255692616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:46,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:34:46,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-12 12:34:46,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112178181] [2024-11-12 12:34:46,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:46,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 12:34:46,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:46,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 12:34:46,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-12 12:34:47,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 354 [2024-11-12 12:34:47,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 327 transitions, 707 flow. Second operand has 8 states, 8 states have (on average 247.125) internal successors, (1977), 8 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:47,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:47,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 354 [2024-11-12 12:34:47,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:48,491 INFO L124 PetriNetUnfolderBase]: 1305/5058 cut-off events. [2024-11-12 12:34:48,491 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-12 12:34:48,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7680 conditions, 5058 events. 1305/5058 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 44532 event pairs, 1148 based on Foata normal form. 1/4592 useless extension candidates. Maximal degree in co-relation 7556. Up to 2434 conditions per place. [2024-11-12 12:34:48,516 INFO L140 encePairwiseOnDemand]: 342/354 looper letters, 127 selfloop transitions, 11 changer transitions 2/390 dead transitions. [2024-11-12 12:34:48,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 390 transitions, 1113 flow [2024-11-12 12:34:48,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 12:34:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 12:34:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2110 transitions. [2024-11-12 12:34:48,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7450564971751412 [2024-11-12 12:34:48,521 INFO L175 Difference]: Start difference. First operand has 332 places, 327 transitions, 707 flow. Second operand 8 states and 2110 transitions. [2024-11-12 12:34:48,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 390 transitions, 1113 flow [2024-11-12 12:34:48,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 390 transitions, 1107 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:48,530 INFO L231 Difference]: Finished difference. Result has 343 places, 334 transitions, 768 flow [2024-11-12 12:34:48,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=768, PETRI_PLACES=343, PETRI_TRANSITIONS=334} [2024-11-12 12:34:48,531 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, 19 predicate places. [2024-11-12 12:34:48,531 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 334 transitions, 768 flow [2024-11-12 12:34:48,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 247.125) internal successors, (1977), 8 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:48,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:48,534 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:48,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 12:34:48,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-12 12:34:48,735 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:48,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash 181443847, now seen corresponding path program 1 times [2024-11-12 12:34:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899766380] [2024-11-12 12:34:48,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:48,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:48,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899766380] [2024-11-12 12:34:48,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899766380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:48,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662786389] [2024-11-12 12:34:48,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:48,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:48,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:48,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:48,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 12:34:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:49,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 12:34:49,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:49,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:49,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662786389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:49,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:49,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 12:34:49,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520460316] [2024-11-12 12:34:49,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:49,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 12:34:49,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 12:34:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 12:34:49,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-12 12:34:49,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 334 transitions, 768 flow. Second operand has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:49,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:49,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-12 12:34:49,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:49,715 INFO L124 PetriNetUnfolderBase]: 88/1325 cut-off events. [2024-11-12 12:34:49,715 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-11-12 12:34:49,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1325 events. 88/1325 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8486 event pairs, 74 based on Foata normal form. 4/1218 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-11-12 12:34:49,726 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 31 selfloop transitions, 21 changer transitions 0/352 dead transitions. [2024-11-12 12:34:49,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 352 transitions, 960 flow [2024-11-12 12:34:49,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 12:34:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 12:34:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6272 transitions. [2024-11-12 12:34:49,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8436911487758946 [2024-11-12 12:34:49,739 INFO L175 Difference]: Start difference. First operand has 343 places, 334 transitions, 768 flow. Second operand 21 states and 6272 transitions. [2024-11-12 12:34:49,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 352 transitions, 960 flow [2024-11-12 12:34:49,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 352 transitions, 953 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:34:49,746 INFO L231 Difference]: Finished difference. Result has 366 places, 347 transitions, 891 flow [2024-11-12 12:34:49,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=891, PETRI_PLACES=366, PETRI_TRANSITIONS=347} [2024-11-12 12:34:49,748 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, 42 predicate places. [2024-11-12 12:34:49,748 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 347 transitions, 891 flow [2024-11-12 12:34:49,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:49,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:49,752 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:49,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 12:34:49,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:49,953 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:49,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1248408135, now seen corresponding path program 2 times [2024-11-12 12:34:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:49,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442111363] [2024-11-12 12:34:49,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:50,390 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:50,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:50,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442111363] [2024-11-12 12:34:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442111363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:50,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630929828] [2024-11-12 12:34:50,391 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:34:50,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:50,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:50,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:50,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 12:34:50,515 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:34:50,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:34:50,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 12:34:50,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:50,540 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 [2024-11-12 12:34:50,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2024-11-12 12:34:50,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:50,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-12 12:34:50,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:50,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 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 [2024-11-12 12:34:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-12 12:34:50,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:34:50,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630929828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:50,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:34:50,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-12 12:34:50,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748187243] [2024-11-12 12:34:50,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:50,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:50,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:50,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:50,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-12 12:34:50,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 354 [2024-11-12 12:34:50,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 347 transitions, 891 flow. Second operand has 6 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:50,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:50,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 354 [2024-11-12 12:34:50,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:52,253 INFO L124 PetriNetUnfolderBase]: 1362/5146 cut-off events. [2024-11-12 12:34:52,254 INFO L125 PetriNetUnfolderBase]: For 281/285 co-relation queries the response was YES. [2024-11-12 12:34:52,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8333 conditions, 5146 events. 1362/5146 cut-off events. For 281/285 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 45156 event pairs, 911 based on Foata normal form. 33/4764 useless extension candidates. Maximal degree in co-relation 8125. Up to 2520 conditions per place. [2024-11-12 12:34:52,295 INFO L140 encePairwiseOnDemand]: 327/354 looper letters, 107 selfloop transitions, 92 changer transitions 0/463 dead transitions. [2024-11-12 12:34:52,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 463 transitions, 1543 flow [2024-11-12 12:34:52,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:52,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1676 transitions. [2024-11-12 12:34:52,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7890772128060264 [2024-11-12 12:34:52,299 INFO L175 Difference]: Start difference. First operand has 366 places, 347 transitions, 891 flow. Second operand 6 states and 1676 transitions. [2024-11-12 12:34:52,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 463 transitions, 1543 flow [2024-11-12 12:34:52,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 463 transitions, 1519 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-12 12:34:52,317 INFO L231 Difference]: Finished difference. Result has 370 places, 431 transitions, 1475 flow [2024-11-12 12:34:52,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1475, PETRI_PLACES=370, PETRI_TRANSITIONS=431} [2024-11-12 12:34:52,319 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, 46 predicate places. [2024-11-12 12:34:52,319 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 431 transitions, 1475 flow [2024-11-12 12:34:52,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:52,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:52,322 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:52,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-12 12:34:52,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:52,523 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:52,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:52,524 INFO L85 PathProgramCache]: Analyzing trace with hash 45947571, now seen corresponding path program 1 times [2024-11-12 12:34:52,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:52,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080662574] [2024-11-12 12:34:52,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:52,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:53,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:53,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080662574] [2024-11-12 12:34:53,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080662574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:53,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776000205] [2024-11-12 12:34:53,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:53,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:53,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:53,010 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:53,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 12:34:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:53,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 12:34:53,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:53,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:53,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776000205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:53,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:53,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-12 12:34:53,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540016665] [2024-11-12 12:34:53,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:53,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 12:34:53,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:53,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 12:34:53,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-12 12:34:53,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-12 12:34:53,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 431 transitions, 1475 flow. Second operand has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:53,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:53,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-12 12:34:53,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:54,116 INFO L124 PetriNetUnfolderBase]: 240/1956 cut-off events. [2024-11-12 12:34:54,116 INFO L125 PetriNetUnfolderBase]: For 500/562 co-relation queries the response was YES. [2024-11-12 12:34:54,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3091 conditions, 1956 events. 240/1956 cut-off events. For 500/562 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14313 event pairs, 72 based on Foata normal form. 3/1818 useless extension candidates. Maximal degree in co-relation 2803. Up to 232 conditions per place. [2024-11-12 12:34:54,133 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 34 selfloop transitions, 30 changer transitions 0/448 dead transitions. [2024-11-12 12:34:54,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 448 transitions, 1725 flow [2024-11-12 12:34:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 12:34:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-12 12:34:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8947 transitions. [2024-11-12 12:34:54,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842467043314501 [2024-11-12 12:34:54,149 INFO L175 Difference]: Start difference. First operand has 370 places, 431 transitions, 1475 flow. Second operand 30 states and 8947 transitions. [2024-11-12 12:34:54,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 448 transitions, 1725 flow [2024-11-12 12:34:54,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 448 transitions, 1707 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:54,164 INFO L231 Difference]: Finished difference. Result has 403 places, 441 transitions, 1609 flow [2024-11-12 12:34:54,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1457, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1609, PETRI_PLACES=403, PETRI_TRANSITIONS=441} [2024-11-12 12:34:54,166 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, 79 predicate places. [2024-11-12 12:34:54,166 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 441 transitions, 1609 flow [2024-11-12 12:34:54,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:54,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:54,171 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:54,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 12:34:54,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:54,375 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:54,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash -137490686, now seen corresponding path program 2 times [2024-11-12 12:34:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:54,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708047339] [2024-11-12 12:34:54,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:54,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:54,425 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:34:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:54,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:34:54,509 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:34:54,510 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-12 12:34:54,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-12 12:34:54,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-12 12:34:54,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-12 12:34:54,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-12 12:34:54,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-12 12:34:54,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-12 12:34:54,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-12 12:34:54,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-12 12:34:54,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-12 12:34:54,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-12 12:34:54,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-12 12:34:54,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:34:54,518 INFO L421 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-12 12:34:54,523 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:34:54,523 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:34:54,589 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:34:54,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 472 transitions, 960 flow [2024-11-12 12:34:54,731 INFO L124 PetriNetUnfolderBase]: 80/758 cut-off events. [2024-11-12 12:34:54,731 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-12 12:34:54,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 758 events. 80/758 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3374 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 485. Up to 12 conditions per place. [2024-11-12 12:34:54,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 472 transitions, 960 flow [2024-11-12 12:34:54,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 472 transitions, 960 flow [2024-11-12 12:34:54,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:54,750 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;@5d13193, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:54,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-12 12:34:54,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:54,763 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-12 12:34:54,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:54,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:54,764 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:54,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:54,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash 175079599, now seen corresponding path program 1 times [2024-11-12 12:34:54,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:54,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231849956] [2024-11-12 12:34:54,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:54,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231849956] [2024-11-12 12:34:54,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231849956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:54,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:54,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:54,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934609158] [2024-11-12 12:34:54,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:54,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:54,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:54,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:54,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 472 [2024-11-12 12:34:54,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 472 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:54,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:54,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 472 [2024-11-12 12:34:54,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:57,349 INFO L124 PetriNetUnfolderBase]: 1580/11913 cut-off events. [2024-11-12 12:34:57,349 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-12 12:34:57,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14374 conditions, 11913 events. 1580/11913 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142637 event pairs, 1464 based on Foata normal form. 2927/13935 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-11-12 12:34:57,452 INFO L140 encePairwiseOnDemand]: 427/472 looper letters, 33 selfloop transitions, 2 changer transitions 1/425 dead transitions. [2024-11-12 12:34:57,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 936 flow [2024-11-12 12:34:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:57,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2024-11-12 12:34:57,456 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8884180790960452 [2024-11-12 12:34:57,456 INFO L175 Difference]: Start difference. First operand has 429 places, 472 transitions, 960 flow. Second operand 3 states and 1258 transitions. [2024-11-12 12:34:57,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 936 flow [2024-11-12 12:34:57,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 936 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:57,469 INFO L231 Difference]: Finished difference. Result has 426 places, 424 transitions, 874 flow [2024-11-12 12:34:57,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=426, PETRI_TRANSITIONS=424} [2024-11-12 12:34:57,470 INFO L279 CegarLoopForPetriNet]: 429 programPoint places, -3 predicate places. [2024-11-12 12:34:57,472 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 424 transitions, 874 flow [2024-11-12 12:34:57,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:57,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:57,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:57,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:34:57,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:57,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:57,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1665323510, now seen corresponding path program 1 times [2024-11-12 12:34:57,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:57,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108377089] [2024-11-12 12:34:57,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:57,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:57,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108377089] [2024-11-12 12:34:57,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108377089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:57,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26883052] [2024-11-12 12:34:57,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:57,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:57,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:57,730 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:57,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 12:34:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:57,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 12:34:57,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:57,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26883052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:57,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:57,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 12:34:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092672407] [2024-11-12 12:34:57,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:57,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:34:57,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:34:57,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 12:34:57,923 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-12 12:34:57,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 424 transitions, 874 flow. Second operand has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:34:57,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:57,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-12 12:34:57,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:35:00,067 INFO L124 PetriNetUnfolderBase]: 1580/11919 cut-off events. [2024-11-12 12:35:00,068 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-12 12:35:00,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14399 conditions, 11919 events. 1580/11919 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 142579 event pairs, 1464 based on Foata normal form. 2/11017 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-11-12 12:35:00,166 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 37 selfloop transitions, 9 changer transitions 0/432 dead transitions. [2024-11-12 12:35:00,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 432 transitions, 984 flow [2024-11-12 12:35:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:35:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:35:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3558 transitions. [2024-11-12 12:35:00,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8375706214689266 [2024-11-12 12:35:00,176 INFO L175 Difference]: Start difference. First operand has 426 places, 424 transitions, 874 flow. Second operand 9 states and 3558 transitions. [2024-11-12 12:35:00,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 432 transitions, 984 flow [2024-11-12 12:35:00,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 432 transitions, 982 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:35:00,186 INFO L231 Difference]: Finished difference. Result has 435 places, 430 transitions, 922 flow [2024-11-12 12:35:00,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=922, PETRI_PLACES=435, PETRI_TRANSITIONS=430} [2024-11-12 12:35:00,191 INFO L279 CegarLoopForPetriNet]: 429 programPoint places, 6 predicate places. [2024-11-12 12:35:00,191 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 430 transitions, 922 flow [2024-11-12 12:35:00,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:35:00,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:35:00,193 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:35:00,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 12:35:00,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:35:00,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:35:00,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:35:00,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1659774570, now seen corresponding path program 2 times [2024-11-12 12:35:00,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:35:00,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382598429] [2024-11-12 12:35:00,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:35:00,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:35:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:35:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:35:00,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:35:00,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382598429] [2024-11-12 12:35:00,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382598429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:35:00,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242615057] [2024-11-12 12:35:00,538 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:35:00,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:35:00,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:35:00,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:35:00,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 12:35:00,651 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:35:00,651 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:35:00,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 12:35:00,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:35:00,725 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 [2024-11-12 12:35:00,755 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 [2024-11-12 12:35:00,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:35:00,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-12 12:35:00,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:35:00,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-12 12:35:00,867 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-12 12:35:00,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:35:00,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242615057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:35:00,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:35:00,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-12 12:35:00,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155196707] [2024-11-12 12:35:00,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:35:00,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 12:35:00,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:35:00,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 12:35:00,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-12 12:35:01,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 472 [2024-11-12 12:35:01,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 430 transitions, 922 flow. Second operand has 8 states, 8 states have (on average 321.125) internal successors, (2569), 8 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:35:01,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:35:01,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 472 [2024-11-12 12:35:01,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:35:29,437 INFO L124 PetriNetUnfolderBase]: 77253/188861 cut-off events. [2024-11-12 12:35:29,437 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-12 12:35:30,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304597 conditions, 188861 events. 77253/188861 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 2541727 event pairs, 70336 based on Foata normal form. 1/174164 useless extension candidates. Maximal degree in co-relation 304472. Up to 110272 conditions per place. [2024-11-12 12:35:31,148 INFO L140 encePairwiseOnDemand]: 460/472 looper letters, 188 selfloop transitions, 11 changer transitions 0/522 dead transitions. [2024-11-12 12:35:31,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 522 transitions, 1504 flow [2024-11-12 12:35:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 12:35:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 12:35:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2761 transitions. [2024-11-12 12:35:31,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.731197033898305 [2024-11-12 12:35:31,155 INFO L175 Difference]: Start difference. First operand has 435 places, 430 transitions, 922 flow. Second operand 8 states and 2761 transitions. [2024-11-12 12:35:31,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 522 transitions, 1504 flow [2024-11-12 12:35:31,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 522 transitions, 1498 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 12:35:31,165 INFO L231 Difference]: Finished difference. Result has 446 places, 438 transitions, 987 flow [2024-11-12 12:35:31,166 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=446, PETRI_TRANSITIONS=438} [2024-11-12 12:35:31,167 INFO L279 CegarLoopForPetriNet]: 429 programPoint places, 17 predicate places. [2024-11-12 12:35:31,167 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 438 transitions, 987 flow [2024-11-12 12:35:31,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 321.125) internal successors, (2569), 8 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:35:31,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:35:31,169 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:35:31,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 12:35:31,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:35:31,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:35:31,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:35:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1502060565, now seen corresponding path program 1 times [2024-11-12 12:35:31,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:35:31,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722424696] [2024-11-12 12:35:31,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:35:31,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:35:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:35:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:35:31,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:35:31,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722424696] [2024-11-12 12:35:31,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722424696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:35:31,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476310819] [2024-11-12 12:35:31,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:35:31,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:35:31,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:35:31,537 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:35:31,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 12:35:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:35:31,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 12:35:31,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:35:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:35:31,699 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:35:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:35:31,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476310819] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:35:31,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:35:31,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 12:35:31,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053071114] [2024-11-12 12:35:31,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:35:31,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 12:35:31,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:35:31,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 12:35:31,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 12:35:31,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-12 12:35:31,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 438 transitions, 987 flow. Second operand has 18 states, 18 states have (on average 391.94444444444446) internal successors, (7055), 18 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:35:31,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:35:31,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-12 12:35:31,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:35:34,208 INFO L124 PetriNetUnfolderBase]: 1611/12171 cut-off events. [2024-11-12 12:35:34,209 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-11-12 12:35:34,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15023 conditions, 12171 events. 1611/12171 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 146958 event pairs, 1492 based on Foata normal form. 4/11242 useless extension candidates. Maximal degree in co-relation 14821. Up to 2431 conditions per place. [2024-11-12 12:35:34,290 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 41 selfloop transitions, 21 changer transitions 0/456 dead transitions. [2024-11-12 12:35:34,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 456 transitions, 1199 flow [2024-11-12 12:35:34,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 12:35:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 12:35:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8256 transitions. [2024-11-12 12:35:34,306 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8329297820823245 [2024-11-12 12:35:34,306 INFO L175 Difference]: Start difference. First operand has 446 places, 438 transitions, 987 flow. Second operand 21 states and 8256 transitions. [2024-11-12 12:35:34,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 456 transitions, 1199 flow [2024-11-12 12:35:34,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 456 transitions, 1197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:35:34,318 INFO L231 Difference]: Finished difference. Result has 470 places, 451 transitions, 1115 flow [2024-11-12 12:35:34,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1115, PETRI_PLACES=470, PETRI_TRANSITIONS=451} [2024-11-12 12:35:34,319 INFO L279 CegarLoopForPetriNet]: 429 programPoint places, 41 predicate places. [2024-11-12 12:35:34,320 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 451 transitions, 1115 flow [2024-11-12 12:35:34,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 391.94444444444446) internal successors, (7055), 18 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:35:34,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:35:34,323 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:35:34,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 12:35:34,523 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,SelfDestructingSolverStorable10 [2024-11-12 12:35:34,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:35:34,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:35:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1314367275, now seen corresponding path program 2 times [2024-11-12 12:35:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:35:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164301072] [2024-11-12 12:35:34,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:35:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:35:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat